【摘要】 塔式起重机吊臂的自重不但影响起重机的制造成本,而且影响起重特性,如何降低吊臂自重是塔式起重机设计中的关键问题之一。由于吊臂受力复杂,计算繁琐,要找到一种可行方案需花费很多时间,所以,怎祥才能找到自重最轻的设计方案是一个长期困扰设计者的问题。本文提出了一种离散优化设计方法并给出了一个吊臂设计通用程序,建立了塔式起重机常用型钢数据库,通过实际设计验证了该程序是一个简单可行的设计程序,比较圆满地解决了本文提出的问题。更多还原

【Abstract】 The weight of a tower crane boom affects not only the production cosof crane,but also its operational performance.How to reduce the weight of atower crane boom is one of the most important problems in the crane design-ing.Because of the complication of both the boom structure and the loads act-ing on it,it is difficult and time-consuming to design a boom.The paper pre-sents a micro-computer design method which can solve the problem.Based onthe statistical data of tower crane boom,this paper establishes the methema-tical model with the objective function of the least boom weight,a commondata bank,and a new seperated optimization program.The results show thatthis method and program are effective and expedient.更多还原