开放式多体系统动力学仿真算法软件研发(Ⅰ)DAEs求解算法构架设计  

Study of open simulation algorithm software for multibody system dynamics(Ⅰ) algorithm framework design for solving DAEs

作　　者：彭海军[1] 阚子云[1] 陈飙松[1] 钟万勰[1] 

机构地区：[1]大连理工大学工业装备结构分析国家重点实验室工程力学系,大连116024

出　　处：《计算力学学报》2015年第5期579-586,共8页Chinese Journal of Computational Mechanics

基　　金：国家自然科学基金(11102031,11472069,11372064,11432010)资助项目

摘　　要：基于开放式工程与科学计算集成化软件平台SiPESC,研发了用于多体系统动力学时程分析的一类通用求解算法构架。该构架的核心思想是算法与数据相分离,整个构架由五个基本类及子类组成。本文重点阐述基本类的抽象过程,利用插件技术设计求解器的构架,进一步应用该构架实现了Newmark方法,HHT(HilberHughes-Taylor)方法,Generalizedα方法,Bathe方法及祖冲之类Symplectic方法等微分-代数方程组(DAEs)求解器的开发。研究工作表明,本文所提出的DAEs求解算法构架对多体系统动力学的时程分析具有良好的开放性和通用性,可方便进行各种新的DAEs求解算法的动态扩展。Based on the open software integration platform for engineering and scientific computation SiPESC,a new class of general algorithm framework for dynamics equations of multibody systems dynamics is constructed.The core idea of the framework is that data model class and algorithmic class are designed separately.The whole framework includes five basic classes and their subclasses.The abstract process of the basic classes is focused on,and the development process of the framework is given by employing the software plugin technology.Furthermore,Newmark,Hilber-Hughes-Taylor （HHT ）, Generalized α,Bathe and Zu Chongzhi Symplectic method are implemented.This investigation shows that the framework has favorable extensibility and openness which is common to algorithm of general time-history analysis for dynamics equations of multibody systems dynamics.

关 键 词：多体动力学 微分-代数方程组(DAEs) 算法构架 软件设计 

分 类 号：O313.7[理学—一般力学与力学基础]