机械控制工程基础英文课件

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《机械工程专业英语》课件

《机械工程专业英语》课件
机械工程原理
深入研究机械运动、力学和设计方面的原理和方法。
机械工程设计
学习机械系统和组件的设计过程,包括CAD和仿真技术的应用。
学习资源
参考书籍
推荐几本经典的机械工程教材, 供学生参考和深入学习。
学习网站
介绍几个优质的在线学习平台, 提供丰富的课程和资源供学生学 习。
实践项目
鼓励学生参与实际机械工程项目, 提升实践能力和解决问题的能力。
2 学生建议和意见
鼓励学生提供对课程的建议和意见,帮助课程更好地满足学生的需求。
总结
课程概述
总结《机械工程专业英语》课程 的内容和目标,强调学生在学习 过程中的收获。
学习成果
强调学生通过学习该课程所获得 的知识和技能,对未来的几个学习机械工程领域知识 的途径,如继续学习、实践项目 和职业培训。
《机械工程专业英语》 PPT课件
这个PPT课件旨在介绍《机械工程专业英语》课程的内容,包括课程目标、学 习方法、重点知识点、学习资源、考试评估、学生反馈和总结。
课程介绍
本节将详细介绍《机械工程专业英语》课程的目标、内容和学习方法。帮助 学生了解课程的重要性和学习的方法。
重点知识点
机械工程概述
了解机械工程领域的基本概念、原理和应用。
考试评估
1 考试形式
说明考试的形式,如闭卷 考试、开卷考试或者实践 考核。
2 考试内容
列举考试涵盖的知识点和 要求,帮助学生有针对性 地复习。
3 考试时间
确定考试的日期和持续时 间,提醒学生合理安排学 习时间。
学生反馈
1 课程满意度调查
开展匿名调查,了解学生对课程的满意度和建议,持续改进教学质量。

机械工程专业英语课件--L12

机械工程专业英语课件--L12

tracing and duplicating lathes, (4) single-spindle 转塔车床没有尾架和丝杠,而在尾架的位置上装有一 automatic lathes, (5) multi-spindle automatic lathes, (6) 个装有一个能纵向移动多任务位主切削刀架(如:转 shapers and planers, (7) boring machines. 塔刀架、回轮刀架),另外还具有辅助刀架(如:前、 后刀架),能完成卧式车床上的各种加工工序。是一 本质上,使用单刃刀具切削的机床包括: 种多刀、多任务位加工的高效机床,加工效率比卧式 (1)普通车床;(2)转塔车床;(3)仿形车床; 车床高2~3倍。转塔车床的调整需花费较多时间,适合 于成批生产。 (4)单轴自动车床;(5)多轴自动车床;(6) 此外,转塔车床刀架的纵横向进给设有撞停定程 牛头刨床和龙门刨床;(7)镗床。 装置,可自动控制铬镍钢件尺寸,保证成批工件尺寸 课文分析 的一致性,能自动实现机床的变速预选、进给量改变
主轴箱:电机---齿轮变速---主轴
尾座:锥孔+顶尖 导轨:平、燕尾 刀架:中拖板(流板箱)作横向进给,大拖板作纵向移动 丝杠:加工螺纹
光杠:切削外圆、端面
预备知识
机械工程专业英语
二、词汇
Lesson 24 Lathes
engine lathe 普通车床 turrent lathe 转塔车床 tracing and duplicating lathe 仿形车床 single-spindle automatic lathe 单轴自动车床 multi-spindle automatic lathe 多轴自动车床 shape 牛头刨床 cylindrical grinder 外圆磨床 planer 龙门刨床 centreless grinder 无心磨床 surface grinder 平面磨床 boring machine 镗床 drilling machine 钻床 milling machine 铣床 broaching machine 拉床 sawing machine 锯床 gear-cutting machine 齿轮加工机床

最新文档-机械工程专业英语课件--L06-PPT精品文档

最新文档-机械工程专业英语课件--L06-PPT精品文档
一、Background Information Power metallurgy
A much wider range of products can be obtained from
powder processes than from direct alloying of fused
materials. In melting operations the "phase rule" applies to
with temporary coatings. 课件
预备知7识
机械工程专业英语
Lesson 6 Plastics and Other Materials 三、Text
Plastics have specific properties, which may made them
preferable to traditional materials for certain uses. In comparison
with metals, for example, plastics have both advantages and
disadvantages. Metals tend to be corroded by inorganic acids, such
as sulphuric acid and hydrochloric acid. Plasticssion ratio across more complex pieces, it is often
necessary to use lower punches as well as an upper punch.
Finally, the end part is formed by applying pressure, high

《机械类专业英语》课件

《机械类专业英语》课件
《机械类专业英语》PPT 课件
这是一份关于《机械类专业英语》的PPT课件,涵盖了机械类专业英语的基础 知识、技能培训、实践案例和学习资料推荐。
第一部分:机械类专业英语基础知识
机械类词汇学习
掌握机械类专业中常用的英文词汇,扩展专业词汇量。
机械类专业常用句型
学习机械类专业中常见的句型,提高英语表达能力。
机械类专业常见缩写和术语解释
了解机械类专业中常用的缩写和术语,避免词汇歧义。
第二部分:机械类专业英语技能培训
机械类专业文档英文写作 技巧
分享撰写机械类专业文档的英文 写作技巧和注意事项。
机械类专业技术文献阅读 策略
介绍阅读机械类专业技术文献的 方法和技巧。
机械类专业领域英语口语 表达技巧
分享在机械类专业领域进行英语 口语表达的技巧和经验。
第三部分:机械类专业英语实践案例
1
机械类专业项目报告英文演讲
演示机械类专业项目报告时的英文演讲技巧和范例。
2
机械类专业跨文化交流中的英语技巧
探讨在机械类专业跨文化交流中使用英语的技巧和方法。
3
机械类专业国际会议英语能力培训
培养参加机械类专业国际会议时的英语交流能力和跨文化沟通技巧。
第四部分:机械类专业英语学习资料推荐
1 机械类英语在线学习 2 机械类英语词汇学习 3 机械类英语学习书籍
网站推荐
助手推荐
推荐
介绍几个优质的机械类英 语在线学习网站,提供学 习资习助手工具,帮 助提高词汇记忆。
推荐一些经典的机械类英 语学习书籍,助力学习进 步。
总结
通过本次《机械类专业英语》PPT课件,您将了解机械类专业英语的基础知识、 技能培训、实践案例和学习资料推荐,帮助您提升在机械类专业领域中的英 语能力。

机械工程专业英语课件--L16

机械工程专业英语课件--L16

specifications
预备知识
机械工程专业英语
Lesson 32 Limits and Tolerances
一、预备知识
Grippers by ZAYTRAN are universally applicable "out-of-the-box". The use of third-generation ZAYTRAN technology and the selection of super tough, corrosive resistant materials allow these products to efficiently serve day-to-day as well as tough, nearly impossible gripper applications BUT are priced competitively with commodity products! ZAYTRAN gripper technology provides precision in extreme environments such as clean rooms, grinder loading, automotive, and die casting. 预备知识
有时极限尺寸仅允许在单一方向上。这就叫做单向 公差。
课文ห้องสมุดไป่ตู้析
机械工程专业英语
Lesson 32 Limits and Tolerances Unilateral tolerancing is s system of dimensioning where the tolerance(that is variation) is shown in only one direction from the nominal size. 单向公差标注是公差(亦即偏差)仅在基本尺寸(又叫 公称尺寸)的一侧表示的尺寸标注制度。 Unilateral tolerancing allowthe changing of tolerance on a hole or shaft without seriously affecting the fit. 单向标注公差的孔或轴的公差发生变化而不会影响 其配合性质。

Unit 1 机电专业英语 图文课件

Unit 1 机电专业英语 图文课件

Text & Translation
Mechanical design should be considered to be an opportunity to use innovative talents to envision a design of a product, to analyze the system and then make sound judgments on how the product is to be manufactured. It is important to understand the fundamentals of engineering rather than memorize mere facts and equations. There are no facts or equations which alone can be used to provide all the correct decisions required to produce a good design. On the other hand, any calculations made must be done with the utmost cle, if a decimal point is misplaced, an otherwise acceptable design may not function.
Text & Translation
People who perform the various functions of mechanical design are typically called designers, or design engineers. Mechanical design is basically a creative activity. However, in addition to being innovative, a design engineer must also have a solid background in the areas of mechanical drawing, kinematics, dynamics, materials engineering, strength of materials and manufacturing processes.

机械工程专业英语课件-L

机械工程专业英语课件-L
Dynamics
The study of the motion of bodies under the action of forces It includes the study of forces, torque, and moments acting on bodies
First Law of Thermodynamics
The development of mechanical engineering has undergone an evolution from manual manufacturing to modern manufacturing. With the continuous progress of technology, mechanical engineering has also made new breakthroughs in both theory and practice.
Connection is the key to achieving mechanical assembly, and connection design needs to consider factors such as connection method, fasteners, and sealing.
Computer aided design
Computer aided design is an important tool in modern mechanical design, which can help designers complete design tasks quickly and accurately.
Fundamentals of Mechanical Design

机械工程专业英语课件L

机械工程专业英语课件L
Helical gears subject the shaft bearings to both radial and thrust loads.
斜齿轮使轴承承受径向力和轴向力。 When the thrust loads become high or are
objectionable for other reasons, it may be desirable to use double helical gears. 当轴向力过大或由于别的原因而产生不利影响时, 那就可能需要使用人字齿轮。
A pair of meshed crossed helical gears usually have the same hand; that is, a right-hand driver
goes with a right-hand driven. 一对相互啮合的交错轴斜齿轮通常具有同样的齿 向,即右旋主动齿轮跟右旋从动齿轮相啮合。
EnglishforMechanicalEngineering
机械工程专业英语
机械工程专业英语
Lesson 21 Helical, Worm and Bevel Gears
一、预备知识
齿轮机构可以用来传递空间任意两轴间的运动。
? 两平行轴间的齿轮传动:
直齿圆柱齿轮:重叠系数太小,冲击大,噪音大 斜齿圆柱齿轮:重叠系数增大,但产生轴向力
பைடு நூலகம்
The helix angle is the same on each gear, but one gear must have a right-hand helix and the other a
left-hand helix.
两个齿轮的螺旋角相等,但一个齿轮必须右旋, 而另一个齿轮必须是左旋。
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Chapter 7
Two experiments
The first one is on April 8, Friday The last one is on May 19, Thursday
Chapter 1: introduction to control stems
1.1 principle of automatic control system 1.2 Structure of control system 1.3 Control systems’ characteristics 1.4 Types of control systems
E
Turn to page 4,look at 1.2.2
1.3 Control systems’ characteristics特性
1. Stability 稳定性 If the difference between the 稳定性:
controlled variable and the reference decays to zero, or the output converges to a limit, the system is said to be stable. Eliminating instability is the first concern of the control system designer.
Sliding collar 滑动轴环 Steam engine
ω
3. schematic diagram 示意图 the steam governor 示意图of
Steam supply Desired speed Actual speed Steam engine
Mechanical linkage
In the broadest sense, a control system is any interconnection of components to provide a desired function. Substance, energy and information are the fundamental elements of any control system. If the correcting action is performed by a human, a system is said to be manually controlled手动控 制的. Otherwise, it is automatically controlled自 动控制的.
3. Dynamics properties动态特性 动态特性: 动态特性
Dynamics properties indicate the transient response 瞬态响 应characteristics of control systems, usually relative to step input阶跃输入.
Fundamental of Mechanical Control Engineering
Jhx 2011.02
This obligatory course is designed to guide the students in gaining the following main points
Dynamic properties 动态性能; Process control system 过程控制系统; Servomechanisms 随动系统 Continuous control system 连续控制系统 Discrete control system 离散控制系统 Input signal 输入信号 Output signal 输出信号 Actuating signal 作用信号(控制信号) Controller 控制器
Chapter 2
Chapter 3
Chapter 4
Experience and competence with frequency response频率响应, frequency characteristics 频率特性and its graphical methods—Nyquist diagrams乃氏图 and Bode diagrams波德图; appreciation of performance specifications in frequency domain频域 and the relationship between performance indices 性能指标in time domain 时域and specifications in frequency domain. Thorough acquaintance with Routh-Hurwitz stability criterion 劳斯-赫尔维兹稳定性判据 and the ability to determine root distributions 根的分布and to find relative stability相对稳定 性.
Chapter 1
Familiarity with the main concepts related to Control and Control Engineering. Familiarity with the transfer function 传递函数 for linear, time-invariant线性时不变 systems, including asymptotic stability 渐进稳定性concepts. Capability with block diagram manipulations方框 图化简 and the use of Mason’s gain rule梅逊公式. Confidence in the use of Laplace Transform 拉氏 变换methods in system response calculation 计算 系统响应and an understanding of commonly used response components.
1.1 principle of automatic control system 1.1.1 control systems
Control systems exit in our daily life. We can get objects on desks exactly because our hands moved by the exact instructions which come from our brain through observation. This control system is provided by nature. Man-made control systems人工控制系统: a power steering动力转向系统 system of a car is designed to control the angle of the car’s front wheels, hence the running direction is controlled.
Butterfly valve
Rotating ball
1.2 Structure of control system 1.2.1 Schematic diagram of a typical automatic control system
期望值 Desired value R input 输入值 放大器(控 放大器( 制器) 制器) Amplifier B Sensors/ transformers 传感器/变换器 传感器 变换器 干扰 Disturbance 执行机构 Actuator Controlled object 被控对象 实际值 Actual value C output 输出值
Some new words
Automation 自动化; feedback 反馈; negative feedback 负反馈; positive feedback 正反馈; open-loop control system 开环控制系统; closed-loop control system 闭环控制系统; Stability 稳定性; Accuracy 精度;
1.1.2 principle of automatic control systems
An example of the speed control of a steam engine: 1. manual control system:
Steam supply蒸汽供给 蒸汽供给 Steam valve 蒸汽阀 Adjusted by a human人工调节 人工调节
Steam engine 蒸汽引擎
ω
2. automatic control system:
Non-rotating Collar adjustable非旋转可 非旋转可 调节轴环 in height to set desired speed
Steam supply Steam valve
Rotatinpter 5
Chapter 6
Appreciation of the feedback反馈 concept and its importance; familiarity with steady-state error 稳态误差concepts and calculation; an acquaintance with system parameter 系统参数 sensitivity, susceptibility to disturbances干扰, and the use of performance specifications. Familiarity with classical compensation 调节 methods and real understanding of the principles guiding compensator 调节器design.
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