关于有限长弹性基础梁的分类  

On the Classification of Elastic Foundation Beams with Finite Length

作　　者：陈良森[1] 扶名福[1] 兰志文[1] 

机构地区：[1]南昌大学工程力学研究所,江西南昌330029

出　　处：《南昌大学学报（工科版）》2002年第3期50-58,共9页Journal of Nanchang University(Engineering & Technology)

摘　　要：研究了有限长弹性基础梁的分类.结果表明,现有的分类不甚合理.根据本文提出的描述近似解可用的标准,通过二类集中荷载作用下有限长梁解、半无限长梁解及刚性短梁解的比较,提出了每类荷载作用下有限长梁的分类标准.研究还表明,对上述两种荷载情形,半无限长梁解的近似效果比无限长梁解的近似效果要好.In this paper,the classification of elastic foundation beams is discussed.The results show that the existed classifications are not appropriate.According to the standard of useful approximate solutions proposed in the present paper,the new classifications of finite long foundation beams under the actions of two different kinds of concentrated loads are suggested by means of the comparison among the solutions of finite,semi-infinite and short rigid long beams.The discussion also shows that for the above two kinds of loads,the approximation of solutions of semi-infinite long beams is better than that of infinite long beams.

关 键 词：有限长弹性基础梁 半无限长梁 分类标准 刚性短梁 集中荷载 材料力学 

分 类 号：TB301[一般工业技术—材料科学与工程]