计算力学学报2025，Vol.42Issue(6)：936-942,982,8.DOI:10.7511/jslx20240912002
商用车动力总成-空调压缩机耦合系统建模与优化
Modeling and optimization of the powertrain and air conditioning compressor coupling system for commercial vehicles
摘要
Abstract
To address the vibration issues in the coupled system of powertrains and air conditioning compressors of commercial vehicles,a twelve-degree-of-freedom(12-DOF)multi-rigid-body vibration coupling model was established,and the corresponding vibration equations were derived.An optimization model was formulated with the goal of maximizing the decoupling rate and rationally assigning the natural frequency of each mode.Using the Active-set algorithm,the system parameters for a specific design case were optimized.The results show that compared to the traditional 6-DOF model,the 12-DOF model better captures the vibration coupling effects among the rigid bodies in the system.After optimization,the decoupling rate of the principal vibration modes increased significantly,effectively controlling the coupling effects between the rigid bodies and substantially improving the system's vibration characteristics.Furthermore,the frequency domain response analysis of the transmissibility demonstrates that the optimized system effectively controls vibrations within the main operating frequency range.This study provides a reference for modeling and designing multi-rigid-body vibration coupling systems in commercial vehicles.关键词
动力总成/空调压缩机/悬置系统/振动/耦合/优化Key words
powertrain/air conditioning compressor/mounting system/vibration/coupling/optimization分类
数理科学引用本文复制引用
LI Zhiqiang..商用车动力总成-空调压缩机耦合系统建模与优化[J].计算力学学报,2025,42(6):936-942,982,8.基金项目
福建省中青年教师教育科研项目(JAT201061) （JAT201061）
福建省交通运输科技项目(XY202305)资助. （XY202305）
