摘要
本文在探讨杆的纵向和横向碰撞问题基础上，论证了用模态叠加法求解结构弹性撞击载荷的可行性。发展了识别撞击载荷的数值方法。用波传播理论、弹性接触理论和模态理论等有关知识对载荷历程进行了分析和解释，并验证了所给方法的精度和实用性。
In this paper,the problem of both the lateral and the logitudinal impactof bars is investigated.The feasibility of the dertermination of rigid / elastic impact loadsbetween structures with the method of mode superposition is verified。A numerical integra-tion method is developed to evaluate the time history of the impaact load , and the obtainedresults are analyzed and interpreted through the use of the theories of wave propagation,elastic contact and vibration modes。The accuracy and utility of the given method are alseverified.
出处
《力学学报》
EI
CSCD
北大核心
1995年第5期560-566,共7页
Chinese Journal of Theoretical and Applied Mechanics
基金
国家自然科学基金
关键词
碰撞
接触
工程结构
工程动力学
impact, contact, modes, wave propgation, time integration
