机械原理英语版
机械原理英文词汇
机械原理英文词汇Chapter 1 Introduction第一章绪论1.mechanism 机构2.kinematical element 运动学元件3.link 构件4.cam 凸轮5.gear 齿轮6.belt 带7.chain 链8.internal-combustion engine 内燃机9.slider-crank mechanism 曲柄滑块机构10.piston 活塞11.connecting rod 连杆12.crankshaft 曲轴13.frame 机架14.pinion 小齿轮15.cam mechanism 凸轮机构16.linkage 连杆机构17.synthesis 综合Chapter 2 Structure analysis of mechanisms 第二章机构的结构分析1. structural analysis 结构分析2. planar mechanisms 平面机构3. planar kinematical pairs 平面运动副4. mobile connection 可动连接5. transmit 传输6. transform 转换7. pair element 运动副元素8. higher pair 高副9. revolute pair 转动副10. sliding pair ,prismatic pair 移动副11. gear pair 齿轮副12. cam pair 凸轮副13. screw pair 螺旋副14. spherical pair 球面副15. surface contact 面接触16. kinematical chain 运动链17. closed chain 闭式链18. open chain 开式链19. driving links 驱动件20. driven links 从动件21. planar mechanism. 平面机构22. spatial mechanism 空间机构23. The kinematical diagram of a mechanism机构运动简图24. schematic diagram 草图25. kinematical dimensions 运动学尺寸26. fixed pivot 固定铰链27. pathway 导路28. guide bar 导杆29. profiles 轮廓30. the actual cam contour 凸轮实际廓线.31. polygon 多边形32. route of transmission 传递路线33. structural block diagram 结构框图34. Degree of Freedom (DOF) 自由度35. constraints 约束36. common normal 公法线37. compound hinge 复合铰链38. gear-linkage mechanism 齿轮连杆机构40. passive DOF 局部自由度41. redundant constraint 虚约束42. The composition principle and structural analysis组成原理与结构分析43. the basic mechanism 基本机构44. Assur groups 阿苏尔杆组45. inner pair 内副46. outer pairs 外副.47. composition principle of mechanism 机构组成原理48. kinematical determination 运动确定性Chapter 9 Balancing of Machinery第九章机械的平衡1. Vibration 振动2. Frequency 频率3. Resonant 共振4. Amplitudes 振幅5. Balancing of rotors 转子6. Rigid rotors 刚性转子7. Flexible rotors 柔性转子8. Balancing of mechanisms 机构的平衡9. Disk-like rotor 盘状转子10.Non-disk rigid rotor 非盘状转子11.the shaking force 振动力12.the shaking moment 振动力矩13.Balancing of Disk-like Rotors 盘状转子的平衡14.static imbalance 静不平衡15.static balancing machine 静平衡机16.the mass-radius product 质径积17.dynamically unbalanced 动不平衡18.balance planes 平衡基面19.Dynamic balancing machine 动平衡机20.Unbalancing Allowance 许用不平衡量Chapter 8 Motion of Mechanical Systemsand Its Regulation第八章机械系统的运转及其调节1. Periodic speed fluctuation 周期性波动2. punching machine 冲床3. Motion Equation of a Mechanical System机械系统的运动方程4. General Expression of the Equation of Motion运动方程的一般表达式5. the kinetic energy 动能6. the moment of inertia 转动惯量7. Dynamically Equivalent Model of a Mechanical System等效动力学模型8. the equivalent moment of inertia 等效转动惯量9. the equivalent moment of force 等效力矩10.the equivalent link 等效构件11.Pump 泵12.Blower 鼓风机13.Flywheel 飞轮1)Calculate the degree of freedom (DOF) of the mechanisms. shown in the following figure.2) judge and point out the compound hinge, passive DOF or redundant constraints.3)Judge whether the mechanism has determined motion?2.Carry out the structural analysis for the mechanism in followingfigure.(1)List the assembly order of Assur groups,(2) Judge the grade of the mechanism.1. There are four imbalances in a disk-like rotor. The masses, rotating radii and angular orientations are: m1=10kg, m2=8kg,m3=7kg and m4=5kg, r1=100mm, r2=150mm, r3=200mm andr4=100mm. The rotor is to be balanced by removing a mass mb at a rotating radius of rb=100mm. Find the magnitude mb and its location angle b.(15points)。
机械原理英文Mechanical principles
十四、Mechanical principlesDegrees of freedomIn mechanics, degrees of freedom are the set of independent displacements and/or rotations that specify completely the displaced or deformed position and orientation of the body or system.FormulaPl——lower pair , surface contactPh——higher pair , point or line contactn——activity component3——every component have 3 degrees of freedom 2——lower pair have 2 degrees of freedom1——high pair have 1 degrees of freedomF>1 , we can not know what happen next timeF=1 , we can know what happen next timeF=0 , mechanics will not move三审，笔试，有三个图，分别计算哪个结构是稳定的，第一个是稳定的，第二个是稳定但是有过度约束，第三个不稳定可运动。
在过度约束中，审核官问我知道不知道一个公式s=2k-3,我不明白，回来和同学讨论觉得这个应该是计算虚约束的公式，请多注意。
Plane mechanism`s motion analysisInstantaneous center of velocityRevolute pair join, two mechanism , instantaneous center of velocity in center of revolute pair.Rod 1 and rod 2 are combined by revolute pair, P12 is instantaneous center of velocity.Pure-slide pair join, two mechanism , instantaneous center of velocity infinite distance of vertical motion direction.A move along rod B. P12 in infinite distance of vertical rodB .High pair join , two mechanism , they are pure rolling , instantaneous center of velocity in contact point of two mechanism.P12 is instantaneous center of velocityHigher pair join , two mechanism , they are relative slide , instantaneous center of velocity in base tangent.P12 in t-t.Kennedy-Aronhold theoremP13 in P12 and P23 join line. P13 in P14 and P34 join line. P24 in P12 and P14 join line. P24 in P23 and P34 join line.2 and 4 velocity is same in P24Plane four bar mechanismA and D fix called stander , AB CD called side link. Link can rotation called crank--ABLink can shake in range of degree called rocker--CD Crank-rocker mechanismRadarDouble-crank mechanismTrain wheelDouble-rocker mechanismCraneCam mechanismAdvantag e: structure is simple, respond is quickly. Disadvantage: cam produce is difficult, easily wear between cam and follower.GearA gear is a component within a transmission device that transmits rotational force to another gear or device. Spur gearSpur gear are used for low speed applications and those situations where noise control is not a problem.Helical gearHelical gear operate more smoothly than do spur gear. The use of helical gears is indicated when the application involves high speeds , large power transmission or where noise abatement is important,A disadvantage of helical gear is a resultant thrust along the axis of the gear , which needs to be accommodated by appropriate thrust bearing , and a greater degree of sliding friction between the meshing teeth , often addressed with specific additives in the lubricant. Double helical gearsDouble helical gears , also know as herringbone gears , overcome the problem of axis thrust presented by single helical gears by having teeth that set in a "V" shape. Bevel gearThe angle between the shafts can be anything except 0 and 180 degree.Worm gearThe prime feature of a worm-and-gear set is that it allows the attainment of a high gear ratio with few parts in a small space.Rack and pinionTorque cam be converted to linear force by meshing a rack with a pinion : the pinion turns the rack moves in a straight line.Planet gear。
机械原理英语
机械原理英语Mechanical Principles in English。
Mechanical principles are the foundation of engineering and technology. Understanding these principles is crucial for anyone working in the field of mechanical engineering. In this document, we will discuss some of the key mechanical principles in English.First and foremost, it is important to understand the concept of force. Force is a vector quantity that can cause an object to accelerate, decelerate, or change direction. It is measured in units of newtons and is represented by the symbol F. The magnitude and direction of a force are essential in determining its effect on an object.Next, let's consider the concept of work and energy. Work is done when a force acts on an object to move it a certain distance. The amount of work done is equal to the force applied multiplied by the distance moved in the direction of the force. Energy, on the other hand, is the ability to do work. There are different forms of energy, including kinetic energy (energy of motion) and potential energy (energy of position).Another important mechanical principle is the study of simple machines. Simple machines are basic mechanical devices that apply a force to accomplish work. The six types of simple machines are the lever, wheel and axle, pulley, inclined plane, wedge, and screw. These simple machines can be combined to create more complex machines that make work easier.Furthermore, it is crucial to understand the concept of mechanical advantage. Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device, or machine system. It is calculated by dividing the output force by the input force. Understanding mechanical advantage is essential for designing and optimizing mechanical systems.Additionally, the study of motion and its principles is fundamental in mechanical engineering. Motion is described in terms of displacement, velocity, and acceleration.The laws of motion, formulated by Sir Isaac Newton, are the foundation of classical mechanics. These laws describe the relationship between the motion of an object and the forces acting on it.Moreover, the study of fluid mechanics is essential in understanding the behavior of fluids (liquids and gases) and their interactions with solid objects. Fluid mechanics plays a crucial role in various engineering applications, including the design of pumps, turbines, and hydraulic systems.In conclusion, the study of mechanical principles in English is essential for anyone working in the field of mechanical engineering. Understanding concepts such as force, work and energy, simple machines, mechanical advantage, motion, and fluid mechanicsis crucial for designing and optimizing mechanical systems. By mastering these principles, engineers can develop innovative solutions to complex engineering problems and contribute to the advancement of technology and society.。
机械原理中英文对照
径向槽 运动循环 运动系数 顶锥角 根锥角 顶隙
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Cam Gear Gear train
凸轮（机构） 齿轮（机构） 齿轮系
Statics
Indexing mechanism
间歇运动机构
1
1 Composition and Mobility of Planar Mechanisms
Planar mechanism Mobility
Links Kinematic pairs Joints Elements Revolute Hinge Slider Cam pair Compound hinge Local DOF
0 Introduction
Machinery Machine Mechanism Link Kinematic pair Linkage 机械 机器 机构 构件 运动副 连杆（机构） Displacement Velocity Acceleration Kinematics Dynamics Kinetics 位移 速度 加速度 运动学 动力学 动力学（一般特指 在分析受力时考虑 物体所受的惯性力） 静力学
螺旋线 渐开螺旋面 端面 法面
Superscript Subscript Lead Ellipse
上标 下标 导程 椭圆
9
5 Gear Trains
Spur gears Helical gears Pinion Rack Bevel gears Worm Worm wheel External gears Internal gears Gear train with fixed axes Epicyclic gear train 直齿轮 斜齿轮 小齿轮 齿条 圆锥齿轮 蜗杆 蜗轮 外啮合齿轮 内啮合齿轮 定轴轮系 周转轮系 Planetary gear train Differential gear train Combined gear train Train ratio Sun gear Planet gear Planet carrier Peripheral velocity 行星轮系 差动轮系 复合轮系 （轮系的）传动比 太阳轮，中心轮 行星轮 转臂 圆周速度
机械原理英语版范文
机械原理英语版范文Mechanical PrinciplesIntroductionMechanical principles are the fundamental concepts and laws that govern the behavior and functions of machines and mechanical systems. These principles form the basis of mechanical engineering, providing engineers with the tools and knowledge necessary to design, analyze, and optimize mechanical systems. Understanding mechanical principles is essential for anyone working in the field of mechanical engineering.Newton's Laws of MotionOne of the most fundamental mechanical principles isNewton's laws of motion. These three laws describe the relationship between the motion of objects and the forces acting upon them. The first law states that an object at rest will remain at rest, and an object in motion will continue moving in a straight line at a constant velocity, unless acted upon by an external force. The second law states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. The third law states that for every action, there is an equal and opposite reaction.Mechanical AdvantageFrictionFriction is another important mechanical principle. It is the force that opposes the relative motion of two surfaces in contact with each other. Friction can be both beneficial and detrimental. On one hand, it allows us to walk, drive vehicles, and hold objects without slipping. On the other hand, it causes a loss of energy and wear and tear in mechanical systems. Engineers must take friction into account when designing machines to ensure they function efficiently and reliably.TorqueStress and StrainConclusionThese are just a few of the many mechanical principles that form the foundation of mechanical engineering. By understanding these principles, engineers can design efficient and reliable machines that meet the needs of society. Mechanical engineering continues to advance, with new technologies and principles being discovered and applied every day. The principles discussed here provide a solid starting point for aspiring mechanical engineers to build upon as they delve deeper into the field.。
机械原理第一章cup英文版
Course information and requirements
Information
Shimin Zhang（张仕民） Office: Rm. 602, New Bldg. Tel.: 89733835(o) E-mail: smzhang@
Course information and requirements
How to analyze mechanism & How to synthesize mechanism？
What are we going to study in this course?
The Content of our course
It is broadly divided into two parts. 1. Kinematics of Mechanism: the study of motion
mechanisms & How to synthesize mechanisms
What are we going to study in this course?
Example of the Machines and Mechanisms
Mechanisms: pencil sharper, clock, folding chair, adjustable desk lamp, bike Machines: robots, bulldozer, park rides, elevator, engine. Can you give more examples? Some Mechanisms widely used in our life.
How to become an engineer
机械原理英语版培训课件
Oscillating Motion
Explore the concept of oscillating motion and its applications in pendulums and vibrating systems.
Cams and Follower Systems
1
Design Principles
Chain Drives
Understand the design and maintenance of chain drives in industrial machinery.
Actuators and Controls
1 Types of Actuators 2 Control Systems
Kinematics
Understand the principles of motion and the analysis of mechanisms using kinematic equations.
Cams and Follower Systems
Discover the different types of cam mechanisms and their applications in industry.
Explore different types of actuators, including hydraulic, pneumatic, and electric actuators.
Understand the principles of control systems and their role in automating mechanical processes.
Types of Motion and Applications
机械原理(双语)第一章
Piston 2
Coupler 3 Crank 4 Frame 1
Pinion 4'
Gear 5
Cam 5'
Follower 6 Frame 1
Frame 1 Cam 5" Follower 7 Frame 1
Mechanism(机构) is a system of links(构件) which can transform(转换) or transmit(传递) force and motion.
Piston 2
Coupler 3 Crank 4 Frame 1
Slider-crank mechanism
曲柄滑块机构
1
2
3 4
Piston 2
Coupler 3 Crank 4 Fram
Frame 1
Gear mechanism
齿轮机构
5 1 4'
Piston 2
齿轮机构
Cam mechanism
凸轮机构
1 6
5
3 4
1
4'
5'
Mechanism(机构) is a basic system of links(构件) which can transform(转换) or transmit(传递) force and motion. The function of the slider-crank mechanism is to transform the reciprocation(往复移动) of the piston 2 into the rotation of the crank 4. The function of the gear mechanism is to change the direction and speed of rotation. The function of the cam mechanism is to transform the continuous rotation of the cam into a regular reciprocation of the follower.
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Characteristics:
(1) It is a composition of links.
（人为构件的组合体）
(2) There is a determined relative motion between links.
（各构件之间有确定的相对运动）
(3) It can transform or transmit energy.
15
References
8 . Erdman A. G., Sandor G. N., Mechanism Design: Analysis and Synthesis, Prentice-Hall International Inc, 1984 9*. Eckhand H. D., Kinematic Design of Machines and Mechanisms , McGraw-Hill, 1998 10*. Shigley J. E. and Uicker J.J. Theory of Machines and Mechanisms, McGraw-Hill, 2nd edition, 1995 11*. Norton R. L., Design of Machinery – An Introduction to the Synthesis and Analysis of Mechanisms and Machines, McGraw-Hill, 2nd edition, 2001 * 影印版，机械工业出版社，2002
（国际机构与机器理论联合会）
2. Kinematics and Dynamics
(High speed, precision, efficiency, etc.)
（高速，高精度，高效率等）
10
3. Robot（机器人）
(Manipulator, Parallel machine tool)
11
4.MEMS (um, nm)
2ቤተ መጻሕፍቲ ባይዱ
3. Concepts （概念）
1) Machine e.g. Internal combustion engine （内燃机）
3
1 Cylinder ( 缸体） 2 Piston （活塞） 3 Coupler（连杆) 4 Crank（曲柄） 4’ Pinion（小齿轮） 4” Flywheel（飞轮） 5 Gear（齿轮） 5’ Inlet cam（吸汽凸轮） 5” Outlet cam（排汽凸轮） 6 Inlet valve（进汽阀） 7 Outlet valve（排汽阀）
2. Analysis and synthesis (design)
（分析与综合（设计））
3. Linkage, cam, gear, etc.
（连杆，凸轮，齿轮机构等）
9
0-3 Development of MMT （机械学发展状况） 1. IFToMM
(International Federation for Theory of Machines and Mechanisms)
16
（内部的结构, 运动, 动力特性） ◆ Machine: (external part)
Transformation of energy
（与外界的能量转换）
8
0-2 Study Content
（研究的内容）
1. Construction, kinematics, dynamics
（结构学，运动学，动力学）
Lecture 1
Mechanism and Machine Theory
（机械原理）
1
Introduction
（绪论）
0.1 Study Object（研究对象） 1. Definition（定义）
Mechanism and Machine Theory (MMT) = Theory of Machines and Mechanisms (TMM) （机械原理=机构和机器的理论） 2. Object（对象） Machinery = Mechanisms + Machines （机械） （机构） （机器）
: Machine tool
（工作机: 机床）
Internal combustion, electric motor
（原动机：内燃机,电动机）
6
2）Link—Motion element (rigid construction)
(构件---运动单元）
e.g. Crank 4+4’+4”; Gear 5+5’+5” Including: Driving (input) link （原动件）
（微机电系统）
微型飞行器
微卫星
微型汽车
12
5.CAD (VR) (计算机辅助设计，虚拟现实）
13
The roll of MMT
Basic courses
(基础课) Mathematics, Physics, Mechanics, etc.
Basic courses for specialty
(专业基础课)
Driven (output) link （从动件）
Frame（机架）
Different with:
Machine element—Manufacturing element
（机械零件 --- 制造单元）
e.g. Coupler 3: body, nut, bolt,…
7
3) Mechanism ●Definition: A composition of links that can accomplish determined motion. The difference between mechanism and machine is: Whether it transforms or transmits energy. ◆ Mechanism: (internal part) Construction, kinematics, dynamics properties
（它能进行能量的传递或转换）
☆ Machine:
It is a system of links that can accomplish determined motion and transform energy.
5
Classification
Two kinds of machine:
◆Working machine ◆Generator:
MMT Machine Element
Courses for specialty
(专业课)
Mechanical Design, Mechanical Manufacturing,…
14
References
1.王知行等，机械原理，北京：高等教育出版社，2000 2.邹慧君等，机械原理，北京：高等教育出版社，1999 3.郑文纬，吴克坚，机械原理（第七版），北京：高等 教育出版社，1997 4.孙桓等，机械原理（第六版），北京：高等教育出版 社，2001 5.申永胜等，机械原理教程，北京：清华大学出版社， 1999 6.申永胜等，机械原理辅导与习题，北京：清华大学出 版社，1999 7.上海交通大学机械原理教研室编，机械原理习题集， 北京：高等教育出版社，1985