机械设计与研究
機械設計與研究
궤계설계여연구
MACHINE DESIGN AND RESEARCH
2010年
2期
102-105
,共4页
车架%有限元分析%优化
車架%有限元分析%優化
차가%유한원분석%우화
frame%finite element analysis%optimization
建立了以板单元为基础的某型农用车车架有限元模型,并对其进行了静态分析、模态分析和随机振动分析,分析结果与相关试验数据吻合,验证了模型的正确性;在此基础上,进一步建立了车架的参数化有限元模型和优化数学模型,并利用基于遗传算法的优化程序对其进行优化求解,取得了较理想的减重效果.分析结果为车架的改型设计提供了参考.
建立瞭以闆單元為基礎的某型農用車車架有限元模型,併對其進行瞭靜態分析、模態分析和隨機振動分析,分析結果與相關試驗數據吻閤,驗證瞭模型的正確性;在此基礎上,進一步建立瞭車架的參數化有限元模型和優化數學模型,併利用基于遺傳算法的優化程序對其進行優化求解,取得瞭較理想的減重效果.分析結果為車架的改型設計提供瞭參攷.
건립료이판단원위기출적모형농용차차가유한원모형,병대기진행료정태분석、모태분석화수궤진동분석,분석결과여상관시험수거문합,험증료모형적정학성;재차기출상,진일보건립료차가적삼수화유한원모형화우화수학모형,병이용기우유전산법적우화정서대기진행우화구해,취득료교이상적감중효과.분석결과위차가적개형설계제공료삼고.
In order to obtain the static and dynamic characteristics of agricultural vehicle frame, finite element model (FEA) based on shell element was built and the analysis of static, normal and random vibrations were carried out. The analysis result met with the experiment data the model was verified. Moreover, both the parameterized finite element model and mathematic model of the frame were built and solved with optimization procedure based on genetic algorithm. The weight of the frame was decreased 17.2% after optimization. The result showed that the frame could be lighter and provided some theoretical reference for improving the frame design.
