First Order Analysis for Automotive Body Structure Design - Part 4: Noise and Vibration Analysis Applied to a Subframe

2004-01-1661

03/08/2004

Event
SAE 2004 World Congress & Exhibition
Authors Abstract
Content
First Order Analysis (FOA) is useful for designing subunits in the mid-frequency range, as the layout and mounting positions can easily be decided at the conceptual design phase. In order to reduce vibration, we propose FOA for Noise and Vibration (NV) with the following characteristics. First, a dynamic beam element is formulated analytically using Euler's beam theory [1], so that a long uniform beam can express one element with high-order vibration. Second, power flow between potential energy and kinetic energy can be expressed as post-processing, so we can examine how to change or cut off the vibration energy path. In this paper, the above analysis is applied to a front subframe for the conceptual design of an automotive body structure.
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DOI
https://doi.org/10.4271/2004-01-1661
Pages
10
Citation
Nakagawa, T., Nishigaki, H., Tsurumi, Y., and Kikuchi, N., "First Order Analysis for Automotive Body Structure Design - Part 4: Noise and Vibration Analysis Applied to a Subframe," SAE Technical Paper 2004-01-1661, 2004, https://doi.org/10.4271/2004-01-1661.
Additional Details
Publisher
Published
Mar 8, 2004
Product Code
2004-01-1661
Content Type
Technical Paper
Language
English