摘要
建立了钢丝绳吊重提升系统的动力学模型,将精细积分法用于该模型的动载分析,研究了索具刚度对起升动载系数的影响,较真实地反映了钢丝绳吊重离地起升过程中的动态特性。实验表明,该方法计算量小,精度高,易于分析系统在不同起升速度下的动载荷。
A dynamic model for load--lifting system of wire rope was established herein, with which a high precision direct precise integration method was proposed for calculating the dynamic load of the system, and the relationship between dynamic lifting coefficient and rigidity of rigging was dis- cussed. Calculation results show the dynamic characteristics of lifting process truly, and experiments demonstrate that this method, with the advantages of high accuracy, taking less computing time, is simple and effective to analyze the dynamic load of the system in various lifting velocity cases.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2012年第24期2926-2929,共4页
China Mechanical Engineering
基金
国家质检总局科技计划资助项目(2008QK275)
关键词
钢丝绳
精细积分法
动载系数
起重机
建模
wire rope precise integration method
dynamic coefficient
crane
modeling
