UG运动分析教程(中文版)

运动仿真本章主要内容：运动仿真的工作界面运动模型管理连杆特性和运动副机构载荷运动分析9.1 运动仿真的工作界面本章主要介绍UG/CAE 模块中运动仿真的功能。

运动仿真是UG/CAE（Computer Aided Engineering）模块中的主要部分，它能对任何二维或三维机构进行复杂的运动学分析、动力分析和设计仿真。

通过UG/Modeling 的功能建立一个三维实体模型，利用UG/Motion 的功能给三维实体模型的各个部件赋予一定的运动学特性，再在各个部件之间设立一定的连接关系既可建立一个运动仿真模型。

UG/Motion 的功能可以对运动机构进行大量的装配分析工作、运动合理性分析工作，诸如干涉检查、轨迹包络等，得到大量运动机构的运动参数。

通过对这个运动仿真模型进行运动学或动力学运动分析就可以验证该运动机构设计的合理性，并且可以利用图形输出各个部件的位移、坐标、加速度、速度和力的变化情况，对运动机构进行优化。

运动仿真功能的实现步骤为：1．建立一个运动分析场景；2．进行运动模型的构建，包括设置每个零件的连杆特性，设置两个连杆间的运动副和添加机构载荷；3．进行运动参数的设置，提交运动仿真模型数据，同时进行运动仿真动画的输出和运动过程的控制；4．运动分析结果的数据输出和表格、变化曲线输出，人为的进行机构运动特性的分析。

9.1.1 打开运动仿真主界面在进行运动仿真之前，先要打开UG/Motion（运动仿真）的主界面。

在UG 的主界面中选择菜单命令【Application】→【Motion】,如图9-1 所示。

图9-1 打开UG/Motion 操作界面选择该菜单命令后，系统将会自动打开UG/Motion 的主界面，同时弹出运动仿真的工具栏。

9.1.2 运动仿真工作界面介绍点击Application/Motion 后UG 界面将作一定的变化，系统将会自动的打开UG/Motion的主界面。

该界面分为三个部分：运动仿真工具栏部分、运动场景导航窗口和绘图区，如图9-2 所示。

运动分析对原来的三‎维实体模型‎完成了连杆‎特性的设置‎，运动副的建‎立和外载荷‎的添加的前‎置处理后，就完成了运‎动模型的构‎建。

此时可以利‎用UG/Motio‎n运动分析‎工具栏，对创建的运‎动模型进行‎运动仿真，如图9-65所示。

图9-65 运动分析工‎具栏UG/Motio‎n模块嵌入‎了Mech‎a nica‎l Dynam‎i cs公司‎（MDI）的求解器A‎D AMS/Kinem‎a tics‎，在建立运动‎模型的同时‎U G/Motio‎n已经为该‎求解器建立‎了初始数据‎或输入文件‎，只有运行U‎G/Motio‎n的运动分‎析模块既可‎自动的将初‎始数据和输‎入文件输入‎到求解器中‎，从而得出运‎动模型运动‎后的各种数‎据，完成运动模‎型合理性的‎检查。

9.5.1 运动仿真过‎程的实现UG/Motio‎n的运动分‎析模块可以‎设置运动分‎析的类型，并通过对运‎动分析过程‎的控制，可以直观的‎以动画的形‎式输出运动‎模型不同的‎运动状况，便于用户比‎较准确了解‎所设计的运‎动机构实现‎的运动形式‎。

1．设置运动仿‎真的参数1）运动分析类‎型的设定UG/Motio‎n的运动分‎析类型有两‎类：静态分析和‎动力学分析‎。

点击功能菜‎单区运动分‎析模块中的‎运动（Anima‎t ion）按钮，将弹出一个‎【运动分析选‎项】（Analy‎s is Optio‎n s）对话框，该对话框的‎第一个选择‎区域就要求‎用户选择运‎动分析的类‎型，各选项的功‎能如图9-66所示。

图9-66 【运动分析选‎项】对话框2）运动控制参‎数的设定在上述的运‎动分析选项‎（Analy‎s is Optio‎n s）对话框中，第二个区域‎即要求用户‎输入运动控‎制参数：运动时间和‎运动步骤。

整个运动模‎型运动的快‎慢就是由这‎两个参数决‎定的。

2．运动仿真过‎程的动画输‎出及控制1）运动仿真过‎程的控制设置完了运‎动分析的参‎数后，若选择的运‎动分析类型‎为静态分析‎点击OK键‎，将弹出一个‎【静态平衡】（Stati‎c Equil‎i briu‎m）对话框，如图9-67所示。

「UG运动仿真」完整教程：学习如何进行运动仿真分析，提升设计效率与产品品质UG Motion Simulation Complete Tutorial: Learning How to Conduct Motion Simulation Analysis to Improve Design Efficiency and Product QualityIntroduction:UG Motion Simulation is a powerful tool that can help engineers and designers to analyze and optimize the movement of mechanical systems, such as machines, vehicles, and robots. By simulating the motion of these systems, engineers can identify potential problems and make improvements before the physical prototype is built. This can greatly reduce the cost and time of product development, while improving the quality and reliability of the final product.In this tutorial, we will provide a step-by-step guide to using UG Motion Simulation. We will cover the following topics:1. Setting up the simulation environment2. Creating the motion model3. Defining the motion analysis parameters4. Running the simulation5. Analyzing the results6. Making improvements and optimizationsBy following this tutorial, you will learn how to use UG Motion Simulation to improve your design efficiency and product quality.1. Setting up the simulation environmentBefore we can begin the motion simulation, we need to set up the simulation environment. This involves creating a new simulation file and importing the necessary parts and assemblies.To create a new simulation file, go to the "File" menu and select "New". Then, select "Simulation" from the list of available templates. This will open a new simulation file.Next, we need to import the parts and assemblies that we want to simulate. To do this, go to the "File" menu and select "Import". Then, select the file format of the parts or assemblies that you want to import (such as STEP, IGES, or Parasolid). Once you have selected the file, follow the prompts to import it into the simulation file.2. Creating the motion modelOnce we have set up the simulation environment, we can begin creating the motion model. This involves defining the constraints and connections between the parts and assemblies, and specifying how they will move.To create the motion model, we need to use the "Assembly Constraints" toolbar. This toolbar contains a variety of tools for defining constraints, such as pins, hinges, and sliders.To define a constraint, select the appropriate tool from the toolbar and then select the parts or assemblies that you want to constrain. Follow the prompts to specify the type of constraint and its parameters.Once you have defined all of the necessary constraints, you can begin specifying the motion of the parts and assemblies. To do this, use the "Motion" toolbar. This toolbar contains tools for specifying the motion of parts and assemblies, such as rotating, translating, and oscillating.To specify the motion, select the appropriate tool from the toolbar and then select the parts or assemblies that you want to move. Follow the prompts to specify the type of motion and its parameters.3. Defining the motion analysis parametersOnce we have created the motion model, we need to define the motion analysis parameters. This involves specifying the duration of the simulation, the time step size, and the type of analysis that we want to perform.To define the motion analysis parameters, go to the "Motion Analysis" toolbar. This toolbar contains tools for specifying the analysis parameters, such as the simulation duration, thetime step size, and the type of analysis.To specify the analysis parameters, select the appropriate tool from the toolbar and follow the prompts to specify the parameters.4. Running the simulationOnce we have defined the motion analysis parameters, we can run the simulation. To do this, go to the "Motion Analysis" toolbar and select the "Run" tool. This will begin the simulation.During the simulation, you can monitor the progress of the simulation and view the motion of the parts and assemblies in real-time.5. Analyzing the resultsOnce the simulation is complete, we can analyze the results. This involves reviewing the motion data and identifying potential problems or areas for improvement.To analyze the results, go to the "Results"。