汽车技术
汽車技術
기차기술
AUTOMABILE TECHNOLOGY
2015年
2期
53-57
,共5页
轿车%稳定杆%载荷谱%等效应力%加速试验
轎車%穩定桿%載荷譜%等效應力%加速試驗
교차%은정간%재하보%등효응력%가속시험
Passenger car%Stabilizer bar%Load spectrum%Equivalent stress%Accelerated test
以某型轿车稳定杆为研究对象，采集试车场道路载荷谱并对其进行统计分析，在传统基于广义力的载荷谱编制方法基础上，考虑结构的真实损伤计算，提出一种基于等效应力的编谱方法。通过CAE和台架试验验证可知，寿命与失效位置与实车路试结果基本一致。新方法相比传统方法能更准确预估损伤等效结果，减少试验频次，更快速地模拟出汽车结构件实际受载情况，试验加速效果明显。
以某型轎車穩定桿為研究對象，採集試車場道路載荷譜併對其進行統計分析，在傳統基于廣義力的載荷譜編製方法基礎上，攷慮結構的真實損傷計算，提齣一種基于等效應力的編譜方法。通過CAE和檯架試驗驗證可知，壽命與失效位置與實車路試結果基本一緻。新方法相比傳統方法能更準確預估損傷等效結果，減少試驗頻次，更快速地模擬齣汽車結構件實際受載情況，試驗加速效果明顯。
이모형교차은정간위연구대상，채집시차장도로재하보병대기진행통계분석，재전통기우엄의력적재하보편제방법기출상，고필결구적진실손상계산，제출일충기우등효응력적편보방법。통과CAE화태가시험험증가지，수명여실효위치여실차로시결과기본일치。신방법상비전통방법능경준학예고손상등효결과，감소시험빈차，경쾌속지모의출기차결구건실제수재정황，시험가속효과명현。
In this research, the road load spectrum of a proving ground is acquired and analyzed with stabilizer bar of a passenger car as research object. Based on the establishment method of generalized force equivalent stress, and with consideration of the real damage calculation of the structure, a new establishment method of load spectrum based on equivalent stress is proposed. It is known from CAE and rig test that life and location of failure are basically consistent with that of road test. Compared with the traditional method, the new method can more accurately estimate equivalent results of the damage, reduce the test frequency, simulate real loading conditions of structural parts more rapidly, and the accelerated test has obvious result.
