nvh发动机振动噪声仿真.pdf

Advanced Simulation Technologies
EXCITEEXCITE--
发动机发动机振动噪声仿真振动噪声仿真
Engine NVH Simulation
蓝军 博士
AVL-AST NVH Seminar
24 May, 2005, Shanghai
概述概述 General
应用范围应用范围 Field of Applications
„„ 轴系动力学非线性分析轴系动力学非线性分析
Non-linear Analysis of Crank Train Dynamics
„„ 发动机总成和悬置的低频振动发动机总成和悬置的低频振动
分析分析 Low Frequency Vibration Analysis of
Power Unit and Engine Mountings
„„ 发动机总成发动机总成的声学分析的声学分析
Acoustic Analysis of Power Units
„„ 高级滑动轴承设计高级滑动轴承设计
Advanced Slider Bearing Design
„„ 3D3D活塞动力学活塞动力学
3D Piston Dynamics
AVL-AST NVH Seminar 24 May, 2005, Shanghai Page 2
概述概述 General
轴系动力学分析轴系动力学分析 Crank Train Dynamics
„ 曲轴、主轴承壁、连杆等的动载和变形分
析 Dynamic Loads and Deformations for Design Analysis
(Main Bearing Wall, Crankshaft, Connecting Rod, etc.)
„ 轴承载荷分析,考虑弹性液体的非线性耦
合效应 Bearing Load Evaluation, considering the
elastohydrodynamics nonlinear coupling effects.
瞬态应力分析瞬态应力分析 Transient Strength Analysis
„ 基于EXCITE计算结果，用有限元软件，进