＜持续更新＞机电工程_专业英语积累
说明：英语的学习并非一朝一夕，需要长期的积累和训练，本文主要是对常用的专业词汇进行记录，仅作为个人复习使用。本帖将持续更新。
一、缩写术语
- CIMS(Computer/contemporary Integrated Manufacturing Systems)
计算机/现代集成制造系统。CIMS 定义：CIMS是通过计算机硬软件，并综合运用现代管理技术、制造技术、信息技术、自动化技术、系统工程技术，将企业生产全部过程中有关的人、技术、经营管理三要素及其信息与物流有机集成并优化运行的复杂的大系统。
- CAD(Computer Aided Design)
计算机辅助设计。利用计算机及其图形设备帮助设计人员进行设计工作。
- CAE(Computer Aided Engineering)
工程设计中的计算机辅助工程。指用计算机辅助求解分析复杂工程和产品的结构力学性能，以及优化结构性能等，把工程（生产）的各个环节有机地组织起来，其关键就是将有关的信息集成，使其产生并存在于工程（产品）的整个生命周期。而CAE软件可作静态结构分析，动态分析；研究线性、非线性问题；分析结构（固体）、流体、电磁等。
- DC/ AC Converter
直流电/交流电转换器。AC交流电流全称Alternating Current。DC直流电全称Direct Current，又称“恒流电”。
- CAPP（Computer Aided Process Planning）
计算机辅助工艺过程设计。指借助于计算机软硬件技术和支撑环境，利用计算机进行数值计算、逻辑判断和推理等的功能来制定零件机械加工工艺过程。借助于CAPP系统，可以解决手工工艺设计效率低、一致性差、质量不稳定、不易达到优化等问题。
- PLC (Programmable Logic Controller)
可编程逻辑控制器。它采用一种可编程的存储器，在其内部存储执行逻辑运算、顺序控制、定时、计数和算术运算等操作的指令，通过数字式或模拟式的输入输出来控制各种类型的机械设备或生产过程。
- CAM(Computer Aided Manufacturing）
主要是指利用计算机辅助完成从生产准备到产品制造整个过程的活动，即通过直接或间接地把计算机与制造过程和生产设备相联系，用计算机系统进行制造过程的计划、管理以及对生产设备的控制与操作的运行，处理产品制造过程中所需的数据，控制和处理物料(毛坯和零件等)的流动，对产品进行测试和检验等。
- NC(Numerical Control)
数字控制是利用数字化信息对机械运动及加工过程进行控制的一种方法，简称数控。数控技术是用数字信息对机械运动和工作过程进行控制的技术，数控装备是以数控技术为代表的新技术对传统制造产业和新兴制造业的渗透形成的机电一体化产品，即所谓的数字化装备，如数控机床等。其技术涉及多个领域:机械制造技术，信息处理、加工、传输技术，自动控制技术，伺服驱动技术，传感器技术，软件技术等。
- CNC（Computer Numerical Control）
计算机数控技术。即使用数字化的信息，对机械加工的处理过程和运动进行控制的方法，也可以指一种装有程序控制系统的自动化机床。cnc加工的方式具有加工质量稳定、生产效率高等优点。
- AHRS：Attitude and Heading Reference System
航姿参考系统
- ADRC：Active Disturbance Rejection Control
自抗扰控制器
- BDS：BeiDou Navigation Satellite System
北斗导航系统
- CCD：Charge-Coupled-Device
电荷耦合器件，是一种用电荷量表示信号大小，用耦合方式传输信号的探测元件，具有自扫描、感受波谱范围宽、畸变小、体积小、重量轻、系统噪声低、功耗小、寿命长、可靠性高等一系列优点，并可做成集成度非常高的组合件。
- CMOS：Complementary Metal Oxide Semiconductor
互补金属氧化物半导体。指制造大规模集成电路芯片用的一种技术或用这种技术制造出来的芯片，是电脑主板上的一块可读写的RAM芯片。因为可读写的特性，所以在电脑主板上用来保存BIOS设置完电脑硬件参数后的数据，这个芯片仅仅是用来存放数据的。
- SCARA：Selective Compliance Assembly Robot Arm
选择性遵守装配机械臂，即应用于装配作业的机器人手臂。它有3个旋转关节，最适用于平面定位。
- RPM（转速单位）：Revolutions Per Minute
表示设备每分钟的旋转次数。
- MEMS：Micro-Electro-Mechanical System
微机电系统，是集微型传感器、执行器、机械结构、电源能源、信号处理、控制电路、高性能电子集成器件、接口、通信等于一体的微米或纳米级器件或系统。MEMS侧重于超精密机械加工，涉及微电子、材料、力学、化学、机械学诸多学科领域。
- N.O.：normally open、N.C.：normally close
在常态(不通电)的情况下处于断开状态的触点叫常开触点,处于闭合状态的叫常闭触点。
二、词汇积累
| 单词 | 含义 |
| speed changer | 变速器 |
| pneuma lock | 气动夹紧 |
| screw driver | 起子 |
| Electric screw driver | 电动起子 |
| Pneumatic screw driver | 气动起子 |
| barcode | 条码 |
| barcode scanner | 条码扫描器 |
| flow meter | 流里表 |
| pressure gauges | 压力计 |
| themometer | 温度计 |
| mechanics | 力学; 机械学 |
| yield stress | 屈服应力 |
| tensile stress | 拉【伸】应力 |
| compressive stress | 压【缩】应力 |
| shear stress | 剪【切】应力 |
| vehicle | 车辆 |
| piston | 活塞 |
| hose | 软管 |
| block brakes | 制动块 |
| couplings | 联轴器，耦合器 |
| cylinder |
桶状，气缸，圆柱 |
| automobile | 汽车 |
| hydraulic fluid | 液压油 |
| mechanical rack | 机架 |
| multi-functional | 多功能的 |
| knobs | 旋钮 |
| crank | 曲柄 |
| etch-a-sketch | 蚀刻草图 |
| servomechanisms | 伺服机构 |
| coolant | 冷却液 |
| car chase | 追车 |
| traffic flows | 交通流量 |
| approaching an intersection | 接近十字路口 |
| hundreds of timers and relays | 数百个延时器和继电器 |
| sequencing control | 顺序控制 |
| interlock | 互锁 |
| valve | 阀门 |
| pilot light | 指示灯 |
| process impediment | 生产故障 |
| shop floor | 车间 |
| solenoid | 螺线管 |
| wiring diagram | 接线图 |
| logic-solving program | 逻辑求解程序 |
| graphical user interface | 图形用户界面 |
| setpoint | 预设点，预期值 |
| variable | 多变的；变量 |
| shaft | 轴 |
| billet | 毛坯，钢坯 |
| diameter |
直径 |
| hot-rolling | 热轧 |
| cold-drawing | 冷拔 |
| stock up | 囤货 |
| forge | 锻造 |
| bearing | 轴承 |
| lubricant | 润滑剂 |
| viscosity | 粘度 |
| specific gravity | 比重 |
| property | 属性，财产 |
| thin-film or fluid-film friction | 薄膜或液膜摩擦 |
| intermittent action | 间歇性运动 |
| plasticity | 可塑性 |
三、段落翻译
1. With low-power machinery or vehicles the operator can usually apply sufficient force through a simple mechanical linkage from the pedle or handle to the stationary part of the brake.In many cases, however, this force must be multiplied by using an elaborate braking system.
（1）自己翻译：使用低力量的机器或车辆，操作者通常通过一个在简单的机械连接或者刹车片的静止部分来获得足够的力量。然而，在许多情况下，这个力量被一个静止的刹车系统放大数倍。
（2）谷歌机翻：对于低功率机械或车辆，操作员通常可以通过从踏板或手柄到制动器固定部分的简单机械联动装置施加足够的力。但是，在许多情况下，必须使用复杂的制动系统来增加该力。
（3）参考翻译：用低能机器或传力工具，操作者通过向踏板或把手的一个简单机械连接构件作用足够的力量到车闸固定的部分。然而大多数情况下，用一个复杂的车闸系统使这个力量成倍增加。
2.The fundamental principle involved is the use of compressed air acting through a piston in a cylinder to set block brakes on the wheels. The action is simultaneous on the wheels of all the cars in the train. The compressed air is carried through a strong hose from car to car with couplings between cars; its release to all the separate block brake units, at the same time, is controlled by the engineer.
（1）自己翻译：基本原理是通过压缩空气带动气缸里的活塞作用在轮子上。这个动作同时作用在火车的所有轮子上。压缩空气是通过结实的软管在车与车之间传输。通过工程师将其释放到所有独立的刹车单元。
（2）谷歌翻译：所涉及的基本原理是使用压缩空气通过气缸中的活塞在车轮上设置块制动器。 火车上所有车厢的轮子上的动作是同时发生的。 压缩空气通过一根坚固的软管从车到车通过车与车之间的联轴器输送； 同时，它对所有单独的块制动单元的释放由工程师控制。
（3）参考翻译：相关的基本原理是使用压缩空气，通过气缸内的活塞将制动块压在车轮上起作用。列车的所有车厢上的车轮同时动作。压缩气体通过坚固的管道在联轴器连接的车厢之间传输，工程师控制其在同一时间释放到所有独立的闸块单元。
3.When the brake pedal of an automobile is depressed, a force is applied to a piston in a master cylinder. The piston forces hydraulic fluid through metal tubing into a cylinder in each wheel where the fluid’s pressure moves two pistons that press the brake shoes against the drum.
（1）自己翻译：当汽车的刹车踏板被踩下后，将有一个力作用在主汽缸的活塞上。这个活塞迫使液压油通过金属管道到达每个轮子上的气缸，那的液压油压力使刹车匣作用在轮毂上。
（2）谷歌翻译：当汽车的制动踏板被踩下时，一个力会施加到主缸中的活塞上。 活塞迫使液压流体通过金属管进入每个车轮中的气缸，在那里流体的压力移动两个活塞，将制动蹄压在鼓上。
（3）参考翻译：当踩下汽车刹车的踏板，在主气缸中的活塞上施加一个力。活塞驱动液压流体通过金属管道进入每个车轮气缸，在那里液压移动两个活塞将匣片压向轮圈。
4.Machinery ontology including mechanical rack, mechanical connections and mechanical transmission, which is the basis of mechanical-electrical integration, plays a role in supporting the other functional units of the system and transmitting motion and power. Compared to purely mechanical products, the performance and functionality of integration technology in electrical and mechanical systems have been improved a lot, which requires mechanical ontology to adapt its new status in mechanical structure, materials, processing technology, as well as the areas of geometry. Accordingly, the new ontology is with high efficient, multi-functional, reliable and energy-saving, small, light-weighted and aesthetically pleasing characteristics.
（1）自己翻译：机器系统包括机架，机械连接和机械传动，这是机电一体化的基础，在支持系统其他的功能模块和传输动力和能量上有着重要的作用。和纯机械的产品相比，机电产品系统在表现上和功能上都有很大的提高，这需要这需要机械体在结构上、材料上、生产技术上、或是几何领域里做出适当的调整。就目前来看，新的机体具有高效率、多功能、可靠性和节能、小巧、轻重量和好看的特点。
（2）谷歌翻译：机械本体包括机械机架、机械连接和机械传动，是机电一体化的基础，起到支撑系统其他功能单元和传递运动和动力的作用。 与纯机械产品相比，集成技术在机电系统中的性能和功能有了很大的提升，这就需要机械本体来适应其在机械结构、材料、加工技术以及几何领域的新地位。 因此，新本体具有高效、多功能、可靠节能、体积小、重量轻、美观等特点。
（3）参考翻译：机械体包括机架、机械联接和机械传动，他是机电一体化的基础，作用是支撑其他功能单元，传递运动和动力。和纯机械产品相比，一体化技术的性能和功能在机电系统中大幅提高，它要求机械体适应在机械结构、材料、加工技术以及这些领域的几何学下的新环境。相应地，新的一体化具有高效、多功能、可靠、节能、小巧和美学观赏性的特征。
5.Detecting sensor part includes a variety of sensors and signal detection circuit,and its function is to detect the process of mechatronic systems in the work itself and the changes of relevant parameters in external environment and transmit the information to the electronic control unit. Electronic control unit check the information and sends the corresponding control issues to the actuator.
（1）自己翻译：检测传感器部分包括一系列传感器和信号检测回路，它的功能是检测机电系统工作时的状况和外部元素的变化，然后把这些信息传输给电控单元。电控处理单元检查这些信息并将处理后的控制指令传输给执行器。
（2）谷歌翻译：检测传感器部分包括各种传感器和信号检测电路，其功能是检测机电系统本身在工作中的过程和外界环境中相关参数的变化，并将信息传递给电子控制单元。 电子控制单元检查信息并将相应的控制问题发送到执行器。
（3）参考翻译：检测传感器部分包括各类传感器、信号检测电路，它的功能是检测机电系统自身工作的工程，在外部环境下的相关参数的改变，将其信息传给电子控制单元。电子控制单元通过检查信息，送出相应的指令到执行机构。
6. Electronic control unit, also known as ECU, is the core of mechatronic systems, responsible for the external commands and the signals output by sensors. It centralizes stores, computes and analyzes the information. Based on the results of information processing,instruction are issued according to a certain extent and pace to control the destination for the entire system.
（1）自己翻译：电子控制单元，也写作ECU，是机电系统的核心，负责外部指令和传感器的信号输出。它负责收集信息、计算处理和分析信息。基于信息的处理结果，根据特定的程度和节奏来控制整个系统的最终决策。
（2）谷歌翻译：电子控制单元又称ECU，是机电一体化系统的核心，负责外部指令和传感器输出的信号。 它集中存储、计算和分析信息。 根据信息处理的结果，按一定程度和节奏发出指令，控制整个系统的目的地。
（3）参考翻译：电子控制单元，也称ECU，是机电系统的核心，负责外部命令和传感器的信号输出。它集中、存储、计算并分析信息。基于信息处理的结果，按照一定的范围和步调发出命令来实现控制整个系统的目标。
7.It is put into a fairly standard machine tool that has had position sensing and motors on the control knobs installed. This is basically just a robot machinist. You use a rotating cutting tool to cut away all the metal that isn’t your crank. 3D metal etch-a-sketch, with the computer interpolating, so the circles come out to be pretty smooth.
（1）自己翻译：把非常标准的控制把手上有位置传感器和电机的标准机械工具安装上。这是一个机器人器械的基础。你可以使用旋转切除工具去切不适合你的曲柄。带有三维计算的功能使制造出来的曲线更加地平稳光滑。
（2）谷歌翻译：它被放入一个相当标准的机床中，该机床在控制旋钮上安装了位置传感和电机。 这基本上只是一个机器人机械师。 您使用旋转切割工具切掉所有不是曲柄的金属。 3D 金属蚀刻草图，使用计算机进行插值，因此圆圈非常平滑。
（3）参考翻译：将数控系统装入一个非常标准的机床，他在控制手柄上有位置感应和马达。这基本是一个设计师，你能使用一个旋转切削刀具切掉不是你设计的所有金属。具有计算内插的三维金属刻蚀成型可以使得圆被加工得更光滑。
8.They (CNC machine) are complicated machines, full of servomechanisms, and measuring technology that can measure to 0.005mm while covered in oil. A CNC machine has a minimum of 6 motors (including some to change tools, and one or more to pump oil and coolant various places). This translates to running costs that may be well over $1/minute. (The computer is not a significant part of the cost any more.)
（1）自己翻译：数控机床是非常复杂的机器，上面装满了伺服机构，测量技术可以测出0.005mm的油膜。一个计算机数控机场至少有6个电机（包括一些用来更换刀具，以及一个或多个来泵油和送油到其他地方）。这个传输每分钟需要花超过一美元。（计算机消费所占的比例并不大）
（2）谷歌翻译：它们（CNC 机器）是复杂的机器，充满了伺服机构和测量技术，可以在油中测量到 0.005 毫米。 一台数控机床至少有 6 个电机（包括一些用于更换工具，一个或多个用于泵送油和冷却液的各个地方）。 这意味着运行成本可能远远超过 1 美元/分钟。 （计算机不再是成本的重要组成部分。）
（3）参考翻译：数控机床是复杂的机器，具有伺服机构和检测技术，他能在覆盖油膜状态下检测到0.005mm。数控机床至少有六个马达（包括一些用来换刀具，一个或多个用来泵油和冷却液的各地方）。这些化成运行成本可能大大超过1 美元/分钟。（电脑不再是成本的一个重要部分.）
9.Systems that can assess if the car is behaving safely can be used to warn drivers that their behavior is unsafe.In more extreme cases,the systems could override the driver and cause the car to stop or slow down.While this would on doubt save lives,it may provide a problem for the makers of films that include car chase---some of the impact may be lost when we live in a word where our cars simply refuse to do anything unsafe.
（1）自己翻译：评估车辆是否在安全行驶的系统可以用来警告驾驶员他们不安全的行为。在更加极端的情况下，系统可以有比驾驶员更高的权限来使车停下或者减慢。在被质疑是否能拯救生命的同时，他给电影制造者造成了一些问题，包括车辆追赶的场景。当我们生活在一个车辆能够拒绝做任何危险的事情后，一些影响也将会丢掉。
（2）谷歌翻译：可以评估汽车是否安全运行的系统可用于警告驾驶员他们的行为是不安全的。在更极端的情况下，系统可能会超越驾驶员并导致汽车停止或减速。虽然这可能会挽救生命 ，这可能会给包括汽车追逐在内的电影制作者带来一个问题——当我们生活在我们的汽车拒绝做任何不安全的事情时，可能会失去一些影响。
10.Another feature of the work of Dr.Ljubo Vlacic’s team is to have the machines communicate with each other.Since messages can goat the speed of light,it is possible for there to be an exchange of information on the intentions of several machines approaching an intersection.With this knowledge it should be possible to ensure that traffic flows far more smoothly.
（1）自己翻译：Ljubo Vlacic博士的团队所做的工作另一个特征是使机器能够相互通讯。当信息传输能够赶上光速的时候，机器之间的信息交流将会有一个新的可能。基于这样的理论，交通流量变得平稳就会成为可能。
（2）谷歌翻译：Ljubo Vlacic 博士团队工作的另一个特点是让机器相互通信。由于消息可以达到光速，因此有可能就接近十字路口的几台机器的意图进行信息交换。有了这些知识，应该可以确保交通更加顺畅。
11.Factory assembly line machinery is activated and monitored by a single PLC, where in the past hundreds of timers and relays would have been required to do the task. The machine or system user rarely, if ever, interacts directly with the PLCs program. When it is necessary to either edit or create the PLC program, a personal computer is usually (but not always) connected to it.
（1）自己翻译：工厂装配线机器通过一个独立的PLC来驱动和监测，这里在过去的数百年里是使用继电器来完成相关任务。现在的机器或是系统，可以直接用PLC来控制了。当有必要去编辑或者创建PLC程序的话，一台个人电脑通常就能连接上PLC完成这样的任务，单也不是所有的情况都可以。
（2）谷歌翻译：工厂装配线机械由单个 PLC 激活和监控，在过去，需要数百个计时器和继电器来完成任务。 机器或系统用户很少（如果有的话）直接与 PLC 程序交互。 当需要编辑或创建 PLC 程序时，通常（但不总是）连接个人计算机。
（3）参考翻译：用一个 PLC 就能操纵和监控工厂的装配线机械，过去完成同样的工作需要成千的定时器和继电器。机器或系统用户很少，如果有的话，直接与 PLC 的程序交互。当有必要编辑或创建PLC 程序时仅需将个人计算机连到 PLC 上。
12.The processes of sequencing control and interlock logic needed for automobile manufacturing was a time consuming and arduous task, which required manual updating of relays, timers and dedicated closed-loop controllers. When a new year’s model was coming off the drawing board, skilled electricians were called on to reset the production line.
（1）自己翻译：汽车生产的顺序控制和逻辑控制是一件费时费力的事情，需要人工去更新继电器、延时器和闭合控制回路。当新的一年需要产新的型号时，需要用技术娴熟的电工来重新设置生产线。
（2）谷歌翻译：汽车制造所需的时序控制和互锁逻辑过程是一项耗时且艰巨的任务，需要手动更新继电器、定时器和专用闭环控制器。 当新年的模型即将开始设计时，熟练的电工被要求重置生产线。
（3）参考翻译：汽车制造所需的时序控制、互锁逻辑的处理是一项耗时、费劲的工作，它需要手工更新继电器、计时器和特定的闭环控制器。当一个新年度模型脱离制图板， 熟练的电工被要求从装生产线。
13.PLCs, in essence, monitor external sensory activity from additional devices.They take in the data which reports on a wide variety of activity, such as machine performance, energy output,and process impediment. They also control attached motor starters, pilot lights, valves and many other devices. Both functions respond to a custom, user-created program.
（1）自己翻译：PLC，实事上是对添加进来的设备的外部传感器活动进行监测。它获取一系列数据，例如机器的运作情况、能量输出和生产情况。PLC也控制着电机启动器、相关灯光、产值和其他的设备。所有的这些功能都是基于使用者所设置的这些程序。
（2）谷歌翻译：本质上，PLC 监控来自附加设备的外部感官活动。它们接收报告各种活动的数据，例如机器性能、能量输出和过程障碍。 它们还控制连接的电机启动器、指示灯、值和许多其他设备。 这两个函数都响应自定义的、用户创建的程序。
（3）参考翻译：PLC，本质上是监控附加装置的外部传感活动，他们接受数据，这些数据提供广泛的活动，如机器性能、能量输出和加工障碍。它们也控制相连的马达启动器、导航灯、阀门和许多其他装置。所有的功能都对应一个惯例，实用程序。
14.They (PLCs) are designed for real-time use, and often must withstand harsh environments on the shop floor. The programmable logic controller circuitry monitors the status of multiple sensor input, which control output actuators, which may be things like motor starters, solenoid, lights and displays, or valves.
（1）自己翻译：PLC是为了实时操作而设计的，经常被应用在艰难的环境中。它的编程逻辑控制严格地监视着许多传感器输入，控制着执行器的输出，或者像电机启动器、光和显示，或者阀等的东西。
（2）谷歌翻译：它们 (PLC) 专为实时使用而设计，通常必须能够承受车间的恶劣环境。 可编程逻辑控制器电路监控多个传感器输入的状态，这些输入控制输出执行器，这些执行器可能是电机启动器、螺线管、灯和显示器或阀门。
（3）参考翻译：PLC 被设计为实时应用， 常常必须经受车间恶劣环境。PLC 的电路检测很多传感器输入的状态，控制输出执行机构，如马达启动器、螺线管、灯、显示屏和阀门。
15.Most PLCs are programmed in a special language called Ladder Logic.Ladder logic is essentially a Boolean logic-solving program with a graphical user interface designed to look like an elementary wiring diagram, familiar to all industrial electricians.
（1）自己翻译：懵了
（2）谷歌翻译：大多数 PLC 使用一种称为梯形逻辑的特殊语言进行编程。梯形逻辑本质上是一个布尔逻辑求解程序，其图形用户界面设计为看起来像所有工业电工都熟悉的基本接线图。
（3）大多数的PLC 都是用梯形逻辑这种特殊语言进行编程的。梯形逻辑本质是一个具有图形用户界面的布尔逻辑处理程序，设计成一个所有的工业电气师都熟悉的基本电气线图。
16.PID can be described as a set of rules with which precise regulation of a closed-loop control system is obtained. Closed loop control means a method in which a real-time measurement of the process being controlled is constantly fed back to the controlling device to ensure that the value which is desired is, in fact, being realized.
（1）自己翻译：PID算法可以用一组规则来描述，且这组规则带有精致的闭环控制系统。闭环控制系统意味着将会对进程实时检测并对控制设备进行及时反馈，以此来保证稳定。这就实现的过程。
（2）谷歌翻译：PID 可以被描述为一组规则，通过这些规则可以获得闭环控制系统的精确调节。 闭环控制是指一种方法，在该方法中，被控制过程的实时测量值不断反馈给控制设备，以确保实际实现所需的值。
（3）参考翻译：PID 可以用一组规则描述，通过这组规则可获得闭环控制系统的精密调控。闭环控制是一种方法，用这种方法可将被控过程的实时检测持续地反馈给控制设备以确保期望值被实现。
17.The most important of these (PIDs), Proportional Control, determines the magnitude of the difference between the SETPOINT and the PROCESS VARIABLE (known as ERROR), and then applies appropriate proportional changes to the CONTROL VARIABLE to eliminate ERROR.
（1）自己翻译：PID算法中最重要的就是比例控制，计算得到预期值与实际过程值的误差，然后将这误差值应用到比例上来改变控制值，以此来消除错误。
（2）谷歌翻译：其中最重要的 (PID) 是比例控制，它确定设定点和过程变量（称为误差）之间差异的大小，然后对控制变量应用适当的比例变化以消除误差。
（3）参考翻译：PID 中最重要的是比例控制，它决定了设定值和过程变量间的差值，然后对控制变量使用合适的比例变量以消除误差。
18. Shafting is the machine element that supports a roller and wheel so that they can perform their basic functions of rotation. Shafting, made from round metal bars of various lengths and machined to dimension the surface, is used in a great variety of shapes and applications. Because shafts carry loads and transmit power, they are subject to the stresses and strains of operating machine parts. Standardized procedures have been evolved for determining the material characteristics and size requirements for safe and economical construction and operation.
（1）自己翻译：轴是支撑滚筒和车轮的机械元素，这样可以实现滚动这个基本功能。轴，由各种尺寸的金属圆棒材料制成，再由机器加工其表面，然后制成各种形状，有许多的用途。因为轴可以承受载荷和传递能量，经常被机械操作部分用来承受压力或拉伸。标准化生产已经满足金属特征和型号需要，这使得生产安全，也更加有经济效益。
（2）谷歌翻译：轴系是支撑滚轮和轮子的机械元件，以便它们可以执行基本的旋转功能。 轴由各种长度的圆形金属棒制成并加工成表面尺寸，用于各种形状和应用。 由于轴承载载荷并传递动力，因此它们会受到运行机器部件的应力和应变的影响。 标准化程序已经发展，用于确定安全和经济的施工和操作的材料特性和尺寸要求。
（3）参考翻译：轴是能支撑滚子和轮子以完成最基本的旋转运动的机械元件。轴，由各类长度的圆形金属棒料制成，被加工成各类的表面尺寸，以各种形状用于各种用途。轴因为承载和传动必经受在工作的机器零件的应力和应变。已演化出的标准流程确定安全经济结构操作所需的材料特性和尺寸要求。
19.The normal form of shafting is a solid bar. Solid shafting is obtainable commercially in round bar stock up to 15 cm in diameter;it is produced by hot-rolling and cold-drawing or by machine-finishing with diameters in increments of 6 mm or less.For larger sizes,special rolling procedures are required,and for extremely large shafts,billets are forged to the proper shape. Particularly in solid shafting, the shaft is stepped to allow greater strength in the middle portion with minimum diameter on the ends at the bearings.The steps allow shoulders for positioning the various parts pressed onto the shaft during the rotor assembly.
（1）自己翻译：通常轴的形式是一根固态的棒体。硬棒通常用易获得的直径15cm的棒料进行加工，它通过热处理和冷加工进行生产，或者是用能加工6mm的机器来完成加工。对于更大尺寸的棒料，需要进行特殊处理，对于极大的棒料，毛坯需要作出正确的形状。一般地，棒料的加工需要满足一个原则，即用最少的材料来满足更高的强度。这些加工步骤使得不同部位的轴在承受压力时能够满足要求。
（2）谷歌翻译：轴系的正常形式是实心杆。 实心轴系可在直径最大为 15 厘米的圆棒料中获得；它是通过热轧和冷拔或机械精加工生产的，直径增量为 6 毫米或更小。对于更大的尺寸，特殊的轧制程序是需要，对于非常大的轴，钢坯锻造成合适的形状。 特别是在实心轴系中，轴是阶梯状的，以在轴承端部具有最小直径的中间部分提供更大的强度。这些阶梯允许在转子组装期间定位压在轴上的各种部件的肩部。
20.Differing widely in viscosity, specific gravity, vapor pressure, boiling point, and other properties, lubricants also offer a wide range of selection for the increasingly varied needs of modern industry. But whatever their derivation or properties, the purpose of lubricants is to replace dry friction with either thin-film or fluid-film friction, depending on the load, speed, or intermittent action of the moving parts. Thin-film lubrication, in which there is some contact between the moving parts, usually is specified where heavy loads are a factor.
(1)自己翻译：润滑剂不仅仅影响着xx、重力、压力、沸点和其他一些性质的变化，也给现代工业越来越多的需求提供了广泛的选择。不论怎么说，润滑剂都是用轻的摩擦或流体摩擦来代替干摩擦，这取决于在路面上的速度或者移动部分的动作情况。轻摩擦的润滑油，和移动部分的连接有关联，通常重载是重要的影响因素。
（2）谷歌翻译：润滑油使粘度、比重、蒸气压、沸点和其他特性方面差异很大，还为现代工业日益多样化的需求提供了广泛的选择。 但无论其来源或性质如何，润滑剂的目的是用薄膜摩擦或液膜摩擦代替干摩擦，这取决于运动部件的负载、速度或间歇性动作。 薄膜润滑，其中运动部件之间有一些接触，通常在重负载是一个因素的情况下指定。
（3）参考翻译：润滑剂在粘度、比重、蒸汽压、沸点和其他特性广泛不同，润滑剂为现代工业的渐长的各种需求提供广泛的选择。但无论它们的来源和特性是什么，润滑剂的目的是按移动部件的载荷、速度或间歇运动，用薄膜或流体膜摩擦取代干摩擦。薄膜润滑是指移动部件之间有部分接触，通常特指的重载荷是一个影响因素。
21.To keep the parts separated, it is necessary that the pressure within the lubricating film balances the load on the sliding surfaces. If the lubricating film ’psre ssure is supplied by an external source, the system is said to be lubricated hydrostatically.If the pressure between the surface is generated as a result of the shape and motion of the surfaces themselves, however, the system is hydrodynamically lubricated. This second type of lubrication depends upon the viscous properties of the lubricants.
22.A condition that lies between unlubricated sliding and fluid-film lubrication is referred to as boundary lubrication, also defined as that condition of lubrication in which the friction between surfaces is determined by the properties of the surfaces and properties of the lubricant other than viscosity. Boundary lubrication encompasses a significant portion of lubrication phenomena and commonly occurs during the starting and stopping of machines.
23.Shops often overlook vibration issues when installing machine tools or equipment. However, planning for vibration control, optimally before constructing a new facility or during redesign of an existing one, can save shops a lot of money in the long run. That’bse cause isolating machines and processes from unwanted vibration reduces future problems such as bad part-surface finished, parts out of tolerance, and even physiological damage to shop personnel.
24. Some equipment manufacturers provide allowable-vibration specifications for their machines, but most don’tw, hich makes choosing an isolator system difficult. The key is knowing the amplitudes of vibration frequencies that harm machinery. Fabreeka reports this is where savvy companies call in a consultant or company specializing in vibration protection.
25.Such specialists measure vibration with highly accurate instrumentation such as real-time signal analyzers. These devices capture raw data, without bias, for post-processing and quantify amplitude and frequency of vibration. With this data, the specialist recommends the best isolation solution. Engineers then conduct acceptance test measurements after installation to verify amplitudes and the resultant transmitted vibration.
26.The tooling and grippers are not part of the robotic system itself; rather, they are attachments that fit on the end of the robot’s arm. These attachments connected to the end of the robost arm allow the robot lift parts, spot-weld, paint, arc-weld, drill, beburr, and do a variety of tasks, depending on what is required of the robot.
27.The robotic system can also control the work cell of the operating robot. The work cell of the robot is the total environment in which the robot must perform its task. Included within this cell may be the controller, the robot manipulator, a working table, safety features, or a conveyor. All the equipment that is required in order for the robot to do its job is included in the work cell. In addition, signals form outside devices can communicate with the robot in order to tell the robot when it should assemble parts, pick up parts, or unload parts to a conveyor.
29.At the end of the arm, a wrist is connected. The wrist is made up of addition axes and a wrist
flange. The wrist flange allows the robot user to connect different tooling to the wrist for different jobs.
30.The research that fuels the AI revolution has also seen rapid changes. Foremost among them is the maturation of machine learning, stimulated in part by the rise of the digital economy, which both provides and leverages large amounts of data. Other factors include the rise of cloud computing resources and consumer demand for widespread access to services such as speech recognition and navigation support.
31. Robotics is currently concerned with how to train a robot to interact with the world around it in generalizable and predictable ways, how to facilitate manipulation of objects in interactive environments, and how to interact with people. Advances in robotics will rely on commensurate advances to improve the reliability and generality of computer vision and other forms of machine perception.
32.All of these definitions and statements about mechatronics are accurate and informative, yet each one in and of itself fails to capture the totality of mechatronics. Despite continuing efforts to define mechatronics, to classify mechatronic products, and to develop a standard mechatronics curriculum, a consensus opinion on an all-encompassing description of “what is mechatronics” eludes us. This lack of consensus is a healthy sign. It says that the field is alive, that it is a youthful subject. Even without an unarguably definitive description of mechatronics, engineers understand from the definitions given above and from their own personal experiences the essence of the philosophy of mechatronics.
33.The divide between classical control and modern control was significantly reduced in the 1980s with the advent of “robust control” theory. It is now generally accepted that control engineering must consider both the time domain and the frequency domain approaches simultaneously in the analysis and design of control systems. Also, during the 1980s, the utilization of digital computers as integral components of control systems became routine. There are literally hundreds of thousands of digital process control computers installed worldwide. Whatever definition of mechatronics one chooses to adopt, it is evident that modern mechatronics involves computation as the central element. In fact, the incorporation of the microprocessor to precisely modulate mechanical power and to adapt to changes in environment
are the essence of modern mechatronics and smart products.
34.Micro Electromechanical Systems (MEMS) is an enabling technology for the cost-effective development of sensors and actuators for mechatronics applications. Already, several MEMS devices are in use in automobiles, including sensors and actuators for airbag deployment and pressure sensors for manifold pressure measurement. Integrating MEMS devices with CMOS signal conditioning circuits on the same silicon chip is another example of development of enabling technologies that will improve mechatronic products, such as the automobile.
35.Future mechatronic systems on automobiles may include a fog-free windshield based on humidity and temperature sensing and climate control, self-parallel parking, rear parking aid, lane change assistance, fluidless electronic brake-by-wire, and replacement of hydraulic systems with electromechanical servo systems. As the number of automobiles in the world increases, stricter emission standards are inevitable. Mechatronic products will in all likelihood contribute to meet the challenges in emission control and engine efficiency by providing substantial reduction in CO, NO, and HC emissions and increase in vehicle efficiency. Clearly, an automobile with 30–60 microcontrollers, up to 100 electric motors, about 200 pounds of wiring, a multitude of sensors, and thousands of lines of software code can hardly be classified as a strictly mechanical system. The automobile is being transformed into a comprehensive mechatronic system.
36.The essence of engineering is the utilization of the resources and laws of nature to benefit humanity. Engineering is an applied science in the sense that it is concerned with understanding scientific principles and applying them to achieve a designated goal. Mechanical engineering design is a major segment of engineering; it deals with the conception, design, development, refinement, and application of machines and mechanical apparatus of all kinds.
37. In addition to the traditional technological and economic considerations fundamental to the design and development of mechanical components and systems, the modern engineer has become increasingly concerned with the broader considerations of safety, ecology, and overall “quality of life.” These topics are discussed briefly in the following sections.
38.It is natural that, in the past, engineers gave first consideration to the functional and economic aspects of new devices. After all, unless devices can be made to function usefully, they are of no further engineering interest. Furthermore, if a new device cannot be produced for a cost that is affordable by contemporary society, it is a waste of engineering time to pursue it further. But the engineers who have gone before us have succeeded in developing a multitude of products that do function usefully, and that can be produced economically. Partly because of this, increasing engineering effort is now being devoted to broader considerations relating to the influence of engineered products on people and on the environment.
39.Many textbooks have been written about the aerodynamics of aircraft flight. It is not necessary for an airframe and powerplant (A&P) mechanic to be as knowledgeable as an aeronautical engineer about aerodynamics. The mechanic must be able to understand the relationships between how an aircraft performs in flight and its reaction to the forces acting on its structural parts. Understanding why aircraft are designed with particular types of primary and secondary control systems and why the surfaces must be aerodynamically smooth becomes essential when maintaining today’s complex aircraft.
40.The air in the earth’s atmosphere is composed mostly of nitrogen and oxygen. Air is considered a fluid because it fits the definition of a substance that has the ability to flow or assume the shape of the container in which it is enclosed. If the container is heated, pressure increases; if cooled, the pressure decreases. The weight of air is heaviest at sea level where it has been compressed by all of the air above. This compression of air is called atmospheric pressure.
41. Density is weight per unit of volume. Since air is a mixture of gases, it can be compressed. If the air in one container is under half as much pressure as an equal amount of air in an identical container, the air under the greater pressure weighs twice as much as that in the container under lower pressure. The air under greater pressure is twice as dense as that in the other container. For the equal weight of air, that which is under the greater pressure occupies only half the volume of that under half the pressure.
42.Advancements in semiconductor and integrated circuits manufacturing led to the development of a new class of products that incorporated mechanical and electronics in the system and required the two together for their functionality. The term mechatronics was introduced by Yasakawa Electric in 1969 to represent such systems. Yasakawa was granted a trademark in 1972, but after widespread usage of the term, released its trademark rights in 1982 . Initially, mechatronics referred to systems with only mechanical systems and electrical components—no computation was involved. Examples of such systems include the automatic sliding door, vending machines, and garage door openers.
43.Given the unique nature of the One Hundred Year Study on AI, we expect that future generations of Standing Committees and Study Panels, as well as research scientists, policy experts, leaders in the private and public sectors, and the general public, will reflect on this assessment as they make new assessments of AI’s future. We hope that this first effort in the series stretching out before us will be useful for both its failures and successes in accurately predicting the trajectory and influences of AI.
44.While impressive, these technologies are highly tailored to particular tasks. Each application typically requires years of specialized research and careful, unique construction. In similarly targeted applications, substantial increases in the future uses of AI technologies, including more self-driving cars, healthcare diagnostics and targeted treatments, and physical assistance for elder care can be expected. AI and robotics will also be applied across the globe in industries struggling to attract younger workers, such as agriculture, food processing, fulfillment centers, and factories. They will facilitate delivery of online purchases through flying drones, self-driving trucks, or robots that can get up the stairs to the front door.
45.Social and political decisions are likewise at play in AI’s influences on Employment and Workplace trends, such as the safety nets needed to protect people from structural changes in the economy. AI is poised to replace people in certain kinds of jobs, such as in the driving of taxis and trucks. However, in many realms, AI will likely replace tasks rather than jobs in the near term, and will also create new kinds of jobs. But the new jobs that will emerge are harder to imagine in advance than the existing jobs that will likely be lost. AI will also lower the cost of many goods and services, effectively making everyone better off. Longer term, AI may be thought of as a radically different mechanism for wealth creation in which everyone should be entitled to a portion of the world’s AI-produced treasures. It is not too soon for social debate on how the economic fruits of AI technologies should be shared.
46.The branch of scientific analysis which deals with motions, time, and forces is called mechanics and is made up of two parts, statics and dynamics. Statics deals with the analysis of stationary systems, i. e., those in which time is not a factor, and dynamics deals with systems which change with time. Forces are transmitted into machine members through mating surfaces, e. g., from a gear to a shaft or from one gear through meshing teeth to another gear, from a V belt to a pulley, or from a cam to a follower.
47. It is necessary to know the magnitudes of these forces for a variety of reasons. The distribution of the forces at the boundaries or mating surfaces must be reasonable, and their intensities must be within the working limits of the materials composing the surfaces.For example, if the force operating on a journal bearing becomes too high, it will squeeze out the oil film and cause metal-to-metal contact, overheating, and rapid failure of the bearing. If the forces between gear teeth are too large, the oil film may be squeezed out from between them. This could result in flaking and spalling of the metal, noise, rough motion, and eventual failure.
48.Based on the development trend of the network-based online monitoring and diagnosis system, thispaper introduced the idea of “flexible"of lCS and the smart data acquisition strategy, developed theconfigurable and smart online monitor and diagnosis system with strong flexibility. The system can be applied on kinds of rotating machinery. The smart signal analysis tools can provide the appropriate diagnosismethod kinds of equipment, hence can level up the accuracy of fault diagnosis and condition evaluation.
49.Up to now, most of the robots used to collect scientific data belong to more traditional classes of vehicles, such as thruster-driven drones, AUVs, or wheeled rovers. Most biomimetic robots are built to mimic the morphology of an animal and used to validate scientific hypothesis . An exception to this trend is represented by a remotely operated soft fish, which, because of its bioinspired locomotion, allows close-up observation of marine life without the disturbances introduced by thrusters.
50.Regardless of the application, most underwater robots are pelagic— that is, they move in the water column by mean of thrusters—and for this reason, they present intrinsic limitations when it comes to interacting with the environment. The most common approach consists of hovering above a certain position and performing station keeping and manipulation algorithms at the same time. Besides being computationally heavy, this approach suffers from the disturbance of currents and is subject to many modeling and identification uncertainties.
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