摩托车车架结构动力优化设计_黄剑鸣.pdfVIP

设备设计 /诊断维修 /再制造 2010 1 * 1 1 2 , , ( 1 , 400050; 2, 400050) : M SC. N astran, , (), , , , , : ; ; ; ; : TH 123 : A : 1671 3133( 2010) 0 1 0119 05 The dynam ic op tim ization design of structure of m otorcycle fram e based on M SC. Nastran 1 1 2 HUANG ian-m ing , LE I G ang , CHEN Song ( 1 Chongq ing Autom obile College, Chongq ing Un iversity of T echnology, Chongq ing 400050, Ch ina; 2 Periodicals Society, Chongqing U niversity ofT echnology, Chongqing 400050, Ch ina) A bstrac t: First research the dynam ic property of fram e structure us ing the finite elem ent m ethod, and the fin ite element model is set up th rough com par ing the calcu lating result of theoryw ith the analysis result of expermi en t. T hen based on wt o orig ins causing the v ibration ofm otorcycle ( the road ex citation and the eng ine exc itation) and m ainly tak ing the eng ine exc itation into accoun t, has the dynam ic optmi ization for the structure of the fram e, wh ich w ill avo id effectively the resonance resu lted from the first sec- ond steps inertia frequency of the eng ine in accord w ith the inheren t frequency of the fram e, finally, the dynam ic characteristic is mi proved and the m otorcycle is m ore com fortab le and durable. K ey w ord s: motorcy cle; fram e structure; finite elem ent; model analysis; dynam ic optmi ization design , M SC. Nas- [ 3] , tran , , , ,