翻车保护结构侧向加载的仿真分析与设计方法  

Simulation Analysis and Design Method to Side Loading on Rollover Protective Structure

作　　者：蒋惠锦 

机构地区：[1]常林股份有限公司

出　　处：《工程机械》2011年第1期30-34,102,共5页Construction Machinery and Equipment

摘　　要：提出了利用NX Nastran 6.0软件的材料非线性有限元仿真功能,模拟翻车保护结构(Roll-over Protective Structures,简称ROPS)侧向加载的试验室试验过程,获得侧向位移量、侧向载荷能量等数据,使ROPS符合有关标准要求的设计方法。并提出用满足侧向载荷能量时的侧向作用力,在标准要求最小值的1.25倍左右或更小,来判断是否合理利用材料塑性变形性能。试验室试验结果表明,其仿真数据与试验结果数据的误差小于6.5%。提高了ROPS试验室试验的成功率,避免因设计原因造成的试验失败。Applying the function of nonlinear finite element simulation in NX Nastran 6.0 software,test procedure in laboratory is simulated for side loading on a rollover protective structure.Data of side displacements and side loads energy are obtained for compliance design of the ROPS to related standard.Under the condition of side loads energy is satisfied,a side load which is 1.25 times of the standard value or less is applied to see if the plastic deformation of the material is rationally utilized.A laboratory test results show that data error of the simulation to the test is less than 6.5%.The method ensures the laboratory test success rate and test failure due to design is avoided.

关 键 词：翻车保护 ROPS 侧向加载 仿真分析 设计方法 

分 类 号：TU62[建筑科学—建筑技术科学]