噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2015年
4期
92-97
,共6页
振动与波%怠速振动%整车有限元模型%传递路径%贡献量分析%车辆前期开发
振動與波%怠速振動%整車有限元模型%傳遞路徑%貢獻量分析%車輛前期開髮
진동여파%태속진동%정차유한원모형%전체로경%공헌량분석%차량전기개발
vibration and wave%idle vibration%full vehicle FEA model%transfer path%contribution analysis%advanced vehicle development
为充分利用CAE工具降低新车开发成本，以某车型前期开发为例，从怠速振动发生的机理出发，理论推导四缸发动机的气体激励和惯性激励，作为载荷输入到待开发新车的整车有限元模型，预测座椅的怠速振动。为降低座椅怠速振动加速度，研究九条主要的传递路径对座椅怠速振动加速度的贡献量分析，在综合平衡汽车各性能、重量和成本等因素的条件下，给出三种改进方案，同时采用这三个改进方案，使座椅怠速振动达到设计目标。通过实车试验验证这种分析方法在车辆前期开发中怠速振动预测和控制的有效性。
為充分利用CAE工具降低新車開髮成本，以某車型前期開髮為例，從怠速振動髮生的機理齣髮，理論推導四缸髮動機的氣體激勵和慣性激勵，作為載荷輸入到待開髮新車的整車有限元模型，預測座椅的怠速振動。為降低座椅怠速振動加速度，研究九條主要的傳遞路徑對座椅怠速振動加速度的貢獻量分析，在綜閤平衡汽車各性能、重量和成本等因素的條件下，給齣三種改進方案，同時採用這三箇改進方案，使座椅怠速振動達到設計目標。通過實車試驗驗證這種分析方法在車輛前期開髮中怠速振動預測和控製的有效性。
위충분이용CAE공구강저신차개발성본，이모차형전기개발위례，종태속진동발생적궤리출발，이론추도사항발동궤적기체격려화관성격려，작위재하수입도대개발신차적정차유한원모형，예측좌의적태속진동。위강저좌의태속진동가속도，연구구조주요적전체로경대좌의태속진동가속도적공헌량분석，재종합평형기차각성능、중량화성본등인소적조건하，급출삼충개진방안，동시채용저삼개개진방안，사좌의태속진동체도설계목표。통과실차시험험증저충분석방법재차량전기개발중태속진동예측화공제적유효성。
The mechanism of idle vibration of the four-cylinder engine of a car was studied. The finite element model for a newly developed car was established by means of CAE tool. The gas excitation and inertial excitation to the four-cylinder engine of the car were derived theoretically. And the excitations were used as the input loads to the finite element model. Then, the seat track idle vibration was predicted. To reduce the seat track idle vibration, contributions of nine transfer paths to the acceleration of the seat track idle vibration were analyzed. Considering the overall balance of performances, weight and cost etc. of the vehicle, three improvement strategies for the idle vibration reduction were presented. It was found that the target of the idle vibration reduction could be reached with the three strategies. A real car test verified the effectiveness of this method for prediction and control of seat track idle vibration in the advanced vehicle development.
