基于有限元分析的掘进机回转平台结构优化设计  

Study on optimization design of turning platform for roadheader based on finite element analysis

作　　者：戴宏胜[1,2] 龚曙光[1] 周常荣[1] 王玲[1] 

机构地区：[1]湘潭大学机械工程学院,湘潭411105 [2]娄底市高级技工学校,娄底417000

出　　处：《现代制造工程》2010年第7期97-100,121,共5页Modern Manufacturing Engineering

摘　　要：针对某型号悬臂式掘进机中回转平台的结构特点,在确立危险载荷工况并完成相应的载荷计算后,利用ANSYS软件的APDL编程,建立回转平台结构的有限元非线性接触分析模型,通过分析计算得到其应力和变形的分布规律,并确立了支耳结构为承载的薄弱位置,在此基础上选择支耳的结构尺寸为设计变量,以最小化支耳位置的最大Mises应力为目标函数,建立回转平台结构的优化设计模型,通过优化使支耳结构的承载能力提高15%,回转平台结构的整体刚性和承载能力得到较大的改善,优化结果在工程实际应用中被采纳。Based on the structural characteristic of turning platform in roadheader,the dangerous load condition is determined and the corresponding load calculation is completed.The nonlinear contact FEA model of slewing platform is established by using APDL programming in ANSYS software.The distribution of stress and deformation is obtained by analyzing,and the trunnion struc-ture is determined as the weak position of loading.The trunnion structural dimensions is chosen as the design variables,and minimizing the maximum Mises stress in trunnion structure as objective function,and the optimal design model of turning platform is established.By optimizing calculation,the trunnion structure to support the carrying capacity is increased by 15%,and the overall stiffness and load capacity of turning structure is greater improved.The optimization results obtained has been adopted in the engineering practical applications.

关 键 词：掘进机 回转平台 优化设计 有限元分析 

分 类 号：TD421.5[矿业工程—矿山机电]