Application of Pre-calculated Gear Mesh Stiffness on Elastic Gear Bodies in Multi-Body Simulation

摘要

Multi-body simulation (MBS) is an essential tool for mechanical engineers for predicting the dynamic behavior of mechanical systems under different operating conditions. Gear stages are some of the most common components of mechanical drive trains, and hence, an accurate representation of the complex interactions between gears has a great significance on the Noise, Vibration, and Harshness (NVH) behavior in the system. Predicting this behavior is an important factor in estimating the stability and comfort of the system as well as lifetime of its components. To achieve a higher level of accuracy, gears can be modeled as elastic bodies using the finite elements method (FEM). However, calculating elastic tooth contact is computationally expensive, which makes the simulation of such models impractical for transient dynamic load calculation over wide operating ranges, as for example in high speed applications.