Optimization of inner panel thickness for enhanced stiffness and vibration control in car door assemblies
Pandurang Maruti Jadhav, Kishor B. Waghulde, Venushree Khanke, Rupesh V. Bhortake, Prasad D. Kulkarni, Mohammad israr, Muazu Jibrin Musa, Md Irfanul Haque Siddiqui, Subhav Singh, Deekshant Varshaney, Khalil Abdelrazek Khalil, Khalil Abdelrazek Khalil, Khalil Abdelrazek Khalil
TL;DR
This paper studies how changing the thickness of a car door's inner panel affects its stiffness and vibrations to improve passenger comfort and safety.
Contribution
The study establishes a relationship between inner panel thickness and dynamic performance, suggesting an optimal thickness for car door assemblies.
Findings
Dynamic stiffness and vibrations of the door surface are significantly influenced by inner panel thickness.
Optimal thickness was determined to meet stiffness and vibration control targets.
Natural frequencies and mode shapes were analyzed across a 0-100 Hz frequency range.
Abstract
The inner panel of the side door acts as a backbone of the door assembly. It is designed to accommodate all the parts required to complete the door assembly and its intended functions. The stiffness of the inner panel indirectly protects the inside passengers from weather conditions and side impacts. The inner panel, outer panel, and a few stiffener plates comprise the door’s structure. The preferred method of hemming is used to connect the inner panel and outer panel at their periphery. In hemming, the crimping of the inner panel is done by using the “U” shape of the outer panel at its periphery. The inner panel and the outer panel together will have a cutout, which will provide clear visibility to both inside passengers and outsiders through this cutout cum window. The closing and opening of this window will be controlled by the electric motor-operated window glass regulator…
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Taxonomy
TopicsVehicle Noise and Vibration Control · Effects of Vibration on Health · Brake Systems and Friction Analysis