汽车技术
汽車技術
기차기술
AUTOMABILE TECHNOLOGY
2014年
5期
5-8
,共4页
黄国海%张毅天%谢志清%吴川永%李泽状
黃國海%張毅天%謝誌清%吳川永%李澤狀
황국해%장의천%사지청%오천영%리택상
消声器%结构%排气背压%油耗%NVH
消聲器%結構%排氣揹壓%油耗%NVH
소성기%결구%배기배압%유모%NVH
Muffler%Structure%Exhaust backpressure%Fuel consumption%NVH
采用GT-Power软件对8种方案下的排气系统声学性能进行分析并与原结构进行对比，在此基础上对消声器内部结构进行优化设计。仿真和试验测试结果都表明，通过优化消声器内部结构能有效降低排气背压，降低整车油耗，并能改善排气尾管口噪声和整车通过噪声，提升整车NVH性能。
採用GT-Power軟件對8種方案下的排氣繫統聲學性能進行分析併與原結構進行對比，在此基礎上對消聲器內部結構進行優化設計。倣真和試驗測試結果都錶明，通過優化消聲器內部結構能有效降低排氣揹壓，降低整車油耗，併能改善排氣尾管口譟聲和整車通過譟聲，提升整車NVH性能。
채용GT-Power연건대8충방안하적배기계통성학성능진행분석병여원결구진행대비，재차기출상대소성기내부결구진행우화설계。방진화시험측시결과도표명，통과우화소성기내부결구능유효강저배기배압，강저정차유모，병능개선배기미관구조성화정차통과조성，제승정차NVH성능。
We use software GT- Power to analyze the acoustic performance of exhaust system of eight scenarios, and compare them with that of the original structure, and on this basis we optimize the internal structure of the muffler. The simulation and test results show that the optimized structure of the muffler can effectively reduce the exhaust back pressure, reduce vehicle fuel consumption, and improves the tailpipe noise and the vehicle through noise, improves vehicle NVH performance.
