关键词: 动力学模型, 汽车传动系, 声振粗糙度, 噪声, 振动

Abstract: Difficulties, characteristics and mechanism of several typical NVH problems related to automotive driveline, advances in present overseas and domestic researches are concluded in this paper. The prime research contents and routes of vehicle driveline NVH problems are also introduced. The discussions are unfolded from two aspects of simulation and experiment. Aiming at dynamic research of NVH problems related to automotive driveline, the characteristics of four mechanical models which are systematic dynamics model, multi-body dynamics model, structural dynamics model, systematic and structural dynamics hybrid model are analyzed in detail, coordinates and reference systems used in modeling and the main simulation quantitative and qualitative research methods are also reviewed in simulation. Meanwhile, research contents, signal processing methods, subjective and objective assessment are presented briefly in experiment research aspect.

Key words: Driveline of automotive, Dynamic model, Harshness, Noise, Vibration