机械传动概念设计解与动态性能分析集成建模

基于可扩展单元线性图(Extensible elementary linear graph,EELG)的改进模型,通过增设两个运动特征定义弧,用来描述机械传动组件,以得到包含运动学与动力学信息的拓扑矩阵以及运动特征矢量,实现机械传动概念设计解与动态性能分析的集成.其中拓扑矩阵自动生成系统动力学方程并求解,完成定量分析,而运动特征矢量则是对传动功能进行定性分析.在该模型基础上,构建机械传动功能原理解知识库,通过智能化求解模型,产生满足设计需求的多个原理解,并且自动仿真原理解的动态性能,为设计者优化选取设计方案、配置组件的类型及设定关键参数提供依据.

INTEGRATION MODELLING OF ANALYZING DYNAMIC PERFORMANCE AND CONCEPTUAL DESIGN SOLUTION FOR MECHANICAL TRANSMISSION

The improved model, which is based on extensible elementary linear graph (EELG) theory, introduces two defini- tion arcs of kinetic character. It can be applied to describe the mechanical components for deriving the topology matrixes of kinemics and dynamics, and obtaining the vectors of kinetic character. Therefore, the proposed approach can construct an integration modeling of producing conceptual design solutions and analyzing dynamic performance for mechanical transmis- sion system. A major advantage is that the topology matrixes will perform the quantitative analysis of mechanical system by automatically generating and solving dynamic equations, and the vectors of kinetic character can implement the qualitative analysis of mechanical transmission function. With a solu- tion-knowledge based on this method for mechanical transmis- sion, the intelligent system can give some different conceptual design solutions, which are satisfied for the design requirement, and automatically simulate the dynamic performance of theirs. In this framework, the designer can optimally select the schemes, reconfigure the type of components, and set the im- portant parameters with the given results.