科技视界
科技視界
과기시계
Science&Technology Vision
2015年
25期
107-108
,共2页
B型铝合金地铁车%有限元仿真%试验%模态
B型鋁閤金地鐵車%有限元倣真%試驗%模態
B형려합금지철차%유한원방진%시험%모태
B-type aluminum subway car%Finite element simulation%Experience%Modal
针对B型铝合金地铁车的的结构特点及铝合金材料的力学特性，合理建立车体有限元模型，模拟车体结构的模态。通过试验与计算结果的对比表明，有限元分析结果与试验数据在模态的振型和频率在数值上接近一致，考虑到车体结构的复杂性及有限元建模的过程，可以认定有限元模拟的可靠性，为车体结构的进一步优化与改进提供了参考依据。
針對B型鋁閤金地鐵車的的結構特點及鋁閤金材料的力學特性，閤理建立車體有限元模型，模擬車體結構的模態。通過試驗與計算結果的對比錶明，有限元分析結果與試驗數據在模態的振型和頻率在數值上接近一緻，攷慮到車體結構的複雜性及有限元建模的過程，可以認定有限元模擬的可靠性，為車體結構的進一步優化與改進提供瞭參攷依據。
침대B형려합금지철차적적결구특점급려합금재료적역학특성，합리건립차체유한원모형，모의차체결구적모태。통과시험여계산결과적대비표명，유한원분석결과여시험수거재모태적진형화빈솔재수치상접근일치，고필도차체결구적복잡성급유한원건모적과정，가이인정유한원모의적가고성，위차체결구적진일보우화여개진제공료삼고의거。
According to the structural characteristics of B-type aluminum subway cars and mechanical properties of aluminum alloys, set up finite element model reasonably to simulate the modal of carbody structure. By comparing,it is found that the finite element analysis results and experimental datas have familiar inherent frequencies and modal shapes of the first 6 order modes. Taking into account the complexity of the carbody and the process of setting up the finite element model of the carbody structure, the finite element can be identified reliability, then providing a reference for further optimization and improving.
