Vehicle Engine Stop/Start Vibration Analysis
Summary
It is essential for a vehicle equipped "Idle Stop function" to reduce engine rigid body vibration as well as vehicle body forward and back vibration caused by cited engine vibration at an engine stop/start.
Optimizing the layout of vehicle power-plant rubber mountings and their design parameters, the example shows reduction of engine rigid body vibration as well as vehicle body forward and back vibration caused by cited engine vibration at an engine stop/start.
The analysis simulates actual motion of a power-plant of a vehicle combining computer simulation and physical test to comprehend actual phenomena and acquire parameters of the components. Finally, design studies to reduce engine stop/start vibration are become possible by applying ESTECH. AxisDesign to control the movement of a power-plant, which minimizes forward and backward input forces to a vehicle and to simulate transient engine excitation force.
Relevant analysis and elemental technology
- Hydraulic Mount Model
- Extended Maxwell Rubber Mount Model
- Rubber Mount Model Referring to Table of Amplitude & Frequency Dependency
