QTZ40塔式起重机总体及臂架设计毕业设计说明书题目：QTZ40塔式起重机总体及臂架设计目录第1章前言··········································································11.1概述·············································································11.2发展趋势·······································································1第2章总体设计····································································22.1概述············································································22.2确定总体设计方案····························································22.3总体设计原则································································292.4平衡臂与平衡重的计算······················································302.5起重特性曲线·································································322.6塔机风力计算································································332.7整机的抗倾覆稳定性计算···················································432.8固定基础稳定性计算························································49第3章吊臂的设计计算························································503.1分析单吊点与双吊点的优缺点··············································503.2吊臂吊点位置选择···························································513.3吊臂结构参数参数···························································523.4有限元模型建立过程的几点简化···········································533.5吊臂结构的有限元分析计算·················································543.6计算结果分析·································································693.7吊臂强度校核·································································763.8吊臂稳定性校核······························································76毕业设计小结······································································87致谢··················································································88参考文献············································································89设计项目计算与说明结果前言概述发展趋势总体设计概述