Novel Method of Forecasting Performance of Full Vehicle Suspension by Decoupling Analysis and Vibration Sensing Experiments

摘要

By considering lateral excitation and force analysis in space, we studied the vibration relationship between a full suspension sprung mass and quarter suspension sprung masses. From the derived formula and case study of simulation, we found that the ratio relationship between a full car suspension and quarter car suspensions can be used to construct a forecasting method. Thus, a relationship connecting a full vehicle and quarter vehicles is established. A case study has been carried out and the results are satisfying. It is deduced from the fitting data of a full vehicle suspension that the vibration of a full vehicle can be quantitatively analyzed using the test results of quarter suspensions. Therefore, the forecasting method proposed in this paper provides a new test method for investigating the performance characteristics of a car.