重庆大学学报2025，Vol.48Issue(7)：50-61,12.DOI:10.11835/j.issn.1000-582X.2025.07.005
点熄火工况下动力总成悬置隔振性能的优化方法
Optimization methods to enhance vibration isolation performance of a powertrain mounting system at key-on/off conditions
摘要
Abstract
Hybrid electric vehicles often experiences key-on/off conditions.Increasing vibration isolation performance of the powertrain mounting system(PMS)under key-on/off conditions is one of the important measures to enhance NVH(noise,vibration and harshness)performance of the vehicle.A model with 13 DOFs for PMS was established,and acceleration of the mounts at active side was estimated under the key-on/off condition.Also,vibration acceleration of the mounts at positive side,passive side and the seat rail were measured.The comparison between calculations and experiments validated the proposed model.Deterministic and uncertain optimization methods for reducing the vibration dose value of longitudinal acceleration of the powertrain were proposed,and the mount parameters were the design variable.Key on/off experiments were carried out to validate the proposed methods.The experimental results show that the two optimization methods can effectively enhance the vibration performance of the PMS,and the uncertain optimization method can make the PMS more robust and effectively deal with the influence of parameter uncertainty.关键词
动力总成悬置系统/点熄火工况/瞬态振动性能/优化设计/区间不确定性Key words
powertrain mounting system/key-on/off/transient vibration performance/analysis and optimization/interval uncertainty分类
交通工程引用本文复制引用
殷智宏,林烁,上官利坚..点熄火工况下动力总成悬置隔振性能的优化方法[J].重庆大学学报,2025,48(7):50-61,12.基金项目
国家自然科学基金资助项目(12272137).Supported by National Natural Science Foundation of China(12272137). （12272137）
