摘要
在对表层沙本构关系研究的基础上,首次将大型结构分析有限元程序 ADINA 应用到地面—车辆系统理论研究领域中,研究结果表明,非线性有限元法能有效地摸拟车辆行走机构与沙的相互作用,它能得到相互作用的渐变过程,揭示相互作用的微观机理。同时,对本文所涉及的沙的本构模型,相互作用问题非线性求解策略中带发散处理的 Aitken 加速修正 Newton 法并不是很有效的方法,而 BFGS 法是求解该问题较有效的计算方法,最后还获得了许多有关计算实践的体会。
In this paper,the quantitative relationship between the sand and the running gear of vehiclesis developed using nonlinear finite element method,based on the previous research about the stress-strain relationship of sand.The running gear-sand interaction is studied.The results show that the non-linear finite element method is effective on running gear-sand interaction analysis,and the microcosmicinteraction course is discovered in detail by the method.
出处
《青岛建筑工程学院学报》
1993年第2期35-40,共6页
Journal of Qingdao Institute of Architecture and Engineering
关键词
有限元法
沙地
车辆
非线性
finite element method
stress-strain relationship
terrain-vehicle system
sand
running gear of vehicles
