论文部分内容阅读
一引言壳体结构在建筑、航空、造船等工程建设中有广泛应用。过去,对这类结构的分析在工程设计中一直是个十分重要而又困难的课题。在本世纪60年代,有限元法的诞生和发展以及电子计算机的推广应用,使得这些复杂的壳体结构静力、动力、稳定性问题才真正得到了有效的计算。尽管通用有限元法是一种强有力的数值分析方法,但是对一些有规则区域的结构,采用通用有限元法,并不很经济的,事实上,在工程实际问题中,有许多结构常采用对称又规则的结构型式,
I. INTRODUCTION The shell structure has been widely used in the construction of buildings, aviation, and shipbuilding. In the past, analysis of such structures has been a very important and difficult task in engineering design. In the 1960s, the birth and development of the finite element method and the popularization and application of electronic computers made it possible to effectively calculate the static, dynamic, and stability problems of these complex shell structures. Although the universal finite element method is a powerful numerical analysis method, the general finite element method is not very economical for some structures with regular regions. In fact, many structures are often used in practical engineering problems. Symmetrical and regular structure type,