风机叶片维修平台的力学性能分析及优化设计  

Analysis of Mechanical Behavior and Optimization Design on the Wind Turbine Blade Maintenance Platform

作　　者：张珂[1] 宋恩伟 孙佳[1] 陈士忠[1] 龙彦泽[1] 

机构地区：[1]沈阳建筑大学机械工程学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2015年第5期889-897,共9页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家十二五科技支撑项目(2011BAJ02B07);沈阳市科技计划项目(F13-076-2-00);住房和城乡建设部科学技术计划项目(2015-k3-009)

摘　　要：目的分析风机叶片维修平台的力学性能,对其进行优化调整,解决供能设备未来维修风险问题.方法应用Solidworks软件建立风机叶片维修平台的三维模型,并将模型导入到ANSYS Workbench中建立有限元模型,在额定载荷、额定偏载和超载三种工况下进行静力学分析,对平台的刚度、强度进行校核;应用ANSYS Workbench中的拓扑优化模块进行优化;在Solidworks中对拓扑优化结果进行调整,得到最终设计方案.提取平台的前6阶模态,得到其固有频率及振型图.结果经过对模型的优化,在三种工况下平台的最大变形为1.61 mm,最大等效应力为110.65 MPa,满足设计要求.模态的提取为避免结构共振提供了理论依据.结论所设计的风机叶片维修平台安全可靠、拆装方便、便于转场运输,有较强的可用性;通过对所设计的平台进行优化设计及静力学验证,在比原始模型减重24.2%的情况下满足设计要求,为相关产品的设计提供了参考依据.M echanical behavior of the wind turbine blade maintenance platform was analyzed in this paper. The structure of the platform was optimized basing on the analyzed result,in order to solve the risks of the maintenance of energizing equipments. A 3D model of the platform was established with Solidworks,and imported into ANSYS Workbench to build a FE model. A statics analysis was carried out on ANSYS Workbench to check the stiffness and strength of the platform under three conditions of rated load,partial load and overload. The final design project was confirmed with Solidworks based on the result of topology optimization. The inherent frequency and vibration mode was obtained by extracting the first six order modal. It is found that under the threeconditions,the maximum deformation is 1. 61 mm,the maximum stress is 110. 65 M Pa,which all meet the design requirement. Conclusion is that the the designed wind turbine blade maintenance platform is safe,reliable,conveniently dismantled and ease to transport. Compared with the primary model,the weight of the optimized model reduces by 24. 2%. The proposed method provides references for designs of related products.

关 键 词：风机 平台 静力学 拓扑优化 ANSYS WORKBENCH 

分 类 号：TB121[理学—工程力学]