Title

Design and test of a multiple-DOF motion platform for vibration analysis of heavy duty vehicle seat suspension

RIS ID

101875

Publication Details

Ning, D., Zhang, J., Sun, S., Du, H. & Li, W. (2014). Design and test of a multiple-DOF motion platform for vibration analysis of heavy duty vehicle seat suspension. 8th Australasian Congress on Applied Mechanics, ACAM 2014, as Part of Engineers Australia Convention 2014 (pp. 14-22). Barton, Australia: Engineers Australia.

Additional Publication Information

ISBN: 9781922107350

Abstract

This paper presents a study on the design and test a multiple-DOF motion platform for vibration analysis of heavy duty vehicle seat suspension. This motion platform is designed to have 6-DOF based on the mechanism of the parallel manipulator, which has high force-to-weight ratio, high dexterity and high accuracy of position. This platform can be utilized to accurately simulate vehicle vibration with x, y, z-axis translation and roll, pitch, yaw-axis rotation. The 6-DOF platform is first designed by the PTC Creo software, and then the 3D model is imported into SimMechanics to get a dynamics model for motion analysis and controller design. The vibration simulation of model shows the motion platform has a good trajectory tracking ability. After the design and simulation are successfully completed, a practical motion platform with 6 electrical cylinders is built. This motion platform is designed to support 250kg load and achieve a maximum vibration simulation frequency of 12Hz. The experiments prove that the motion platform can simulate the translation and rotation vibration with required frequency range and amplitude. This 6-DOF motion platform can be applied in the multi-DOF vibration analysis for heavy duty vehicle seat suspension.

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