An integrated tribodynamic model for investigation of efficiency, durability and NVH attributes of gear mesh in electric vehicle powertrains

被引：8

作者：

Mughal, Hamza ^{[1
]}

Dolatabadi, Nader ^{[1
]}

Rahmani, Ramin ^{[1
]}

机构：

[1] Loughborough Univ, Wolfson Sch Mech Elect & Mfg Engn, Loughborough LE11 3TU, Leicestershire, England

来源：

TRIBOLOGY INTERNATIONAL | 2023年 / 189卷

关键词：

Electric powertrain; Gear whine; EHL contact friction; Time varying mesh stiffness (TVMS); Dynamic transmission error (DTE); DYNAMIC TRANSMISSION ERROR; SPUR GEAR; ELASTOHYDRODYNAMIC LUBRICATION; STIFFNESS CALCULATION; TRACTION COEFFICIENT; TOOTH DEFLECTIONS; SLIDING FRICTION; CONTACT; PAIR; DEFORMATION;

D O I：

10.1016/j.triboint.2023.108977

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An integrated gear tribodynamics model is proposed for the study of EV powertrains' performance. The model considers the transient effects of lubrication regimes, non-Newtonian shear thinning, inlet shear heating, deformation states of asperities in mixed regime of lubrication and contact temperature using a set of analytical routines, which are computationally efficient. The proposed gear tribodynamics model provides a breakdown of the interdependency of these attributes and studies their impact on the performance of gear contacts. The results indicate that up to 30% of the contact load can be carried by asperities, of which 80% undergo elastoplastic deformation. In addition, the contribution of lubricant to contact stiffness can be greater than that of surface asperities by an order of magnitude.

引用

页数：25