Fatigue Loads Prediction Based on a Hybrid Road Approach

Abstract

Based on a hybrid road approach, a reliable process of fatigue load prediction is proposed. This approach known as Time Waveform Replication (TWR) relies on test data and multi-body model. The test data is used to back-calculate the hybrid road profile that will cause the same forces on the multi-body model. The road load is measured on the proving ground, and simulation of the multi-body model is ran by TWR to back-calculate the hybrid road profile. The simulation signals are verified by the experimental signals collected by wheel force transducers (WFT) and acceleration sensors.