– 机械关节是约束零件相互运动的连接
Joint motion运动副 Gravity重力
© 2007 SolidWorks Corp. Confidential.
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Constraint Mapping约束映射
Mapping of SolidWorks assembly mates (constraints) to COSMOSMotion joints.
– Fully controlled and only one possible motion result irrespective of force and mass
不考虑力和质量的全约束和单一运动的结果
– Zero degree of freedom
零自由度
Dynamic System动力学系统
– Greater than zero degrees of freedom
自由度数大于零
© 2007 SolidWorks Corp. Confidential.
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Understanding Basics运动基础
Mass and Inertia质量和惯性
– Newton’s First Law牛顿第一定律 – Conservation of momentum动力守恒
Degrees of freedom自由度
– Rigid body刚性物体 – Grounded parts固定零件 – Moving parts运动零件
Constraints约束
– Restrictions placed on a part’s movement in specific degrees of freedom
About this course关于本课程
Prerequisites前提条件
Course Design Philosophy课程设计原理
Using this book本书使用方法 A note about files配套光盘说明 Conventions used in this book本书中采用的原理 Class Introductions课程介绍
– Movement of part(s) under free motion subject to forces
自由运动物体与力作用下的零件运动
– Partially controlled and infinite number of results depending on forces
依赖于力 的部分约束和无限数量的结果
© 2007 SolidWorks Corp. Confidential.
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Mechanism types机构类型
Kinematic System运动学系统
– Movement of part(s) under enforced or constrained motion
外加或强制运动下的部件动作
COSMOSMotion 运动仿真培训
COSMOSMotion 2008
Image courtesy of National Optical Astronomy Observatory, operated by the Association of Universities for Research in Astronomy, under cooperative agreement with the National Science Foundation.
基础约束类型合并为简化的机械约束
– One Orthogonal Concentric mate in SolidWorks becomes a Concentric joint.
映射SolidWorks装配体配合（约束）为 COSMOSMotion的运动副
100+ ways of defining SolidWorks mates.
100多种定义SolidWorks配合的方法
Basic constraint types are merged to simplified mechanical joints.
COSMOSFloWorks Flow Simulation
Fatigue
Optimization
COSMOSMotion
Post-dynamics
COSMOSEMS Electromagnetic
© 2007 SolidWorks Corp. Confidential.
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What is Motion Simulation 什么是运动仿真?
© 2007 SolidWorks Corp. Confidential.
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Design Validation Products设计仿真产品
COSMOSWorks
Adv. Professional Designer
Static
Professional
Vibration & Buckling Thermal Drop Test Nonlinear
作用在零件运动上的特定自由度的限制
– Mechanical joints are connections that restrict the movement of one part to another
y
x
Pendulum restrained to pivot about mounting point
Study of moving systems or mechanisms


运动系统或机构研究
Motion of a system is determinenical joints connecting the parts 零件的机械连接 – The mass and inertia properties of the components 部件的质量和惯性特性 – Applied forces to the system (Dynamics) 系统的作用力（动力学） – Driving motions (Motors or Actuators) 驱动运动（运动或致动器） – Time 时间