创新机构拼装与运动学仿真虚拟实验平台研究  

Research on experimental platform for innovative mechanism assembly and simulation

作　　者：田力[1] 范秀敏[1,2] 刘振峰[1] 邓逸辰 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海市网络化制造与企业信息化重点实验室,上海200030

出　　处：《实验技术与管理》2015年第2期131-135,140,共6页Experimental Technology and Management

基　　金：国家科技支撑计划项目(2008BAH29B03);上海交通大学特色实验项目(CE204)

摘　　要：通过分析真实实验流程,基于OSG(OpenSceneGraph)图形渲染引擎及Bullet物理引擎,提出根据机构设计方案,在虚拟环境中进行机构拼装,并对完成拼装的机构进行运动学仿真的实现方法,包括虚拟构件的信息建模与管理、装配约束特征识别、约束解算及机构运动学自动建模与运动解算等。基于这些方法,开发了机构拼装与运动仿真虚拟实验平台,以曲柄摇杆与摇杆滑块机构拼装实验对实现方法进行了验证。A complete virtual machinery experiment platform with mechanical innovation assembly and kinetic simulation modules are built to re-appear the real material experiments.The platform proposes several methods to realized mechanical system assembly according to innovation designing scheme and mechanical system kinetic simulation,including the modeling and management of virtual parts,detection and resolving of assembly constraints,as well as auto-modeling and calculation of kinetic parameters.The platform integrates the above methods and builds a virtual reality environment using OSG graphic render engine and Bullet physics engine.A case study is given under the platform by assembling a crank-rocker-slider mechanism and solving its kinetic parameters.

关 键 词：虚拟实验 虚拟装配 机构运动仿真 BULLET 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]