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Analysis and Optimization of Vehicle-borne Gateway Based on Finite Element Technology

YUN LI, FUCAI LI, HONGGUANG LI

Abstract


The vehicle-borne gateway, as the base of intelligent transportation, is affected by road surface impact or other uncertain factors during the driving process. The mechanical dynamics of the structure directly affect the electrical signal transmission and system reliability. Hence, excellent anti-vibration and anti-shock performance are critical issues that should be considered in the design stage of the vehicle-borne gateway. In this paper, a comprehensive and effective finite element analysis method is presented to predict possible chassis vibration due to external incentives and analyze the vibration transmission path. This method is applied to the finite element simulation of a certain type of gateway, and the accuracy of the simulation is verified by modal test. Furthermore, as a key component of gateway information storage, the dynamic performance of hard disk component is considerable and should be focused especially. In order to reduce the impact of vibration on the hard disk, this paper performs structural optimization and proposes vibration reduction measures. The effectiveness of the optimization method is verified by the finite element simulation. The simulation results also provide the foundation for life prediction of gateway system.

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