汽车技术
汽車技術
기차기술
AUTOMABILE TECHNOLOGY
2013年
12期
16-19
,共4页
发动机舱%散热性能%有限元仿真%热平衡试验
髮動機艙%散熱性能%有限元倣真%熱平衡試驗
발동궤창%산열성능%유한원방진%열평형시험
Underhood%Heat dissipation%FE simulation%Heat balance test
利用star ccm+软件，通过有限元仿真，对海马公司某款汽车4个工况的发动机舱散热性能进行仿真模拟。根据流场计算结果对发动机缸体及排气歧管等高热源件周围的流场细节进行分析并提出优化方案，最后通过实车热平衡试验与仿真结果进行对比。结果表明，仿真模拟具有足够精度，可为研发过程节省试验费用，并缩短研发周期。
利用star ccm+軟件，通過有限元倣真，對海馬公司某款汽車4箇工況的髮動機艙散熱性能進行倣真模擬。根據流場計算結果對髮動機缸體及排氣歧管等高熱源件週圍的流場細節進行分析併提齣優化方案，最後通過實車熱平衡試驗與倣真結果進行對比。結果錶明，倣真模擬具有足夠精度，可為研髮過程節省試驗費用，併縮短研髮週期。
이용star ccm+연건，통과유한원방진，대해마공사모관기차4개공황적발동궤창산열성능진행방진모의。근거류장계산결과대발동궤항체급배기기관등고열원건주위적류장세절진행분석병제출우화방안，최후통과실차열평형시험여방진결과진행대비。결과표명，방진모의구유족구정도，가위연발과정절성시험비용，병축단연발주기。
Underhood heat dissipation was simulated for a car model from Haima Auto in four operating modes with FE simulation by software star ccm+. According to result of flow field calculation, flow field specifics around some heat generating parts like engine cylinder block and exhaust manifold, etc., were analyzed and an optimization program was proposed, finally vehicle heat balance test was carried out, the results of which were compared with simulation results. The results show that the simulation has sufficient precision, can save test cost during R&D process and shorten development cycle.
