基于Adams的夹紧机构仿真分析本科毕业论文设计

本科生毕业设计

题 目 基于Adams的夹紧机构仿真分析

摘 要

ADAMS是虚拟样机分析的应用软件，用户可以运用该软件非常方便地对虚拟机械系统进行静力学、运动学和动力学分析。在本实例中首先设置ADAMS建模环境，选择合适的单位，用工具库中的命令创建模型的各个部分，添加运动副后进行一次0.2秒100步的仿真，确保运动副的正确性，再添加弹簧和驱动力，夹紧机构虚拟模型完成。当夹紧力最大时也是机构处于自锁状态时，因此需要创建角度测量，然后再创建一个角度传感器通过曲线可观察到机构什么时候达到最大夹紧力。接下来创建设计变量使机构模型参数化，对各个关键点进行设计研究，通过对比找出对夹紧力影响最大的几个点，进行优化迭代运算，获取夹紧机构能达到的最大的夹紧力。

关键词：Adams；夹紧机构；仿真；优化

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Analysis and Simulation of the latch based on Adams

Abstract

ADAMS is the application of virtual prototype analysis software, the user can analyze the kinematics and dynamics of the virtual machine system, very convenient to use the software. In this example we set the ADAMS modeling environment, choice of units, each part of creating model for tool library in command, add motion simulation after a 0.2 second 100 step, ensure the accuracy of kinematic pair, and then add the spring and a driving force, the clamping mechanism virtual model. When the clamping force when the mechanism is in a self-locking state is the largest, therefore need to create angle measurement, and then create an angle sensor through the curve can be observed when what mechanism to achieve maximum clamping force. Next create design variables of the model parameters of the mechanism, a study on the design of each key point, through the comparison of several point out the biggest influence on the clamping force, optimization iteration, to maximize the clamping force of the clamping mechanism can achieve.

Key Words：Adams；Latch；simulation；optimization

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目 录

1 引言 ................................................... 4

1.1夹紧机构的工作原理： ............................... 5 2 利用Adams创建虚拟样机 ................................. 5

2.1启动 ADMAS/View并设置工作环境 ..................... 5 2.2创建弹簧挂锁样机模型 ............................... 6

2.2.1添加运动副 .................................... 7 2.2.2模型运动仿真 .................................. 7 2.2.3创建三维接触 .................................. 7 2.2.4创建拉压弹簧 .................................. 8

3仿真分析 ................................................ 9

3.1测量弹簧力 ......................................... 9 3.2测量角度 ........................................... 9 3.3进行样机仿真 ...................................... 10 4样机模型参数化 ......................................... 11 5样机模型设计研究 ....................................... 11

5.1人工方案研究 ...................................... 11 5.2进行设计研究 ...................................... 12 5.3研究结果分析 ...................................... 17 6样机模型优化设计 ....................................... 17

6.1修改设计变量 ...................................... 17 6.2显示测量图 ........................................ 18 6.3进行优化设计 ...................................... 18 6.4优化结果分析 ...................................... 22 7结语 ................................................... 22 参考文献 ................................................. 23 致 谢 .................................................. 24

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