Study on Influence of the Geometrical Factors on Surface Deflections of Automobile Exterior Panels

doi:10.11908/j.issn.0253-374x.2018.04.014

Home > Archive>Volume 46, Issue 04, 2018 >0512-0517. DOI:10.11908/j.issn.0253-374x.2018.04.014

Study on Influence of the Geometrical Factors on Surface Deflections of Automobile Exterior Panels
DOI:
                        10.11908/j.issn.0253-374x.2018.04.014
                    
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Author:
                        HOU YongHOU Yong
Shanghai Key Laboratory of Vehicle Aerodynamics and Vehicle Thermal Management Systems, Tongji University, Shanghai 201804, China; School of Mechanical Engineering, Tongji University, Shanghai 201804, China
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LIN JianpingLIN Jianping
Shanghai Key Laboratory of Vehicle Aerodynamics and Vehicle Thermal Management Systems, Tongji University, Shanghai 201804, China; School of Mechanical Engineering, Tongji University, Shanghai 201804, China
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LUO RenpingLUO Renping
Shanghai General Motors, Shanghai 201201, China
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ZOU YangZOU Yang
Shanghai General Motors, Shanghai 201201, China
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Abstract:

In order to investigate the geometrical factors that influence the surface deflections and the influence rule, a box shaped part with a triangular step surface was designed. The simulation model was built and validated, and sheet forming experiments and simulations were carried out to study the influence of the geometrical factors on surface deflections of automobile exterior panels. The results indicate that the geometric size factors, including the sharp angle, radius of the sharp corner, depth of the step surface, and radii at the up and down steps, will seriously affect the surface deflections of the box shaped part with a triangular step. However, different geometric factors show different laws about the influence. At the same time, it is noted that depth of the step surface and radius of the sharp corner are the two most sensitive factors that influence the surface deflection by orthogonal tests. The results of this work will play a guiding role on the control of surface deflection of automobile exterior panels in term of the design and optimization of products.

Key words:automobile exterior panel; surface deflection; geometrical factors; simulation analysis

Reference

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HOU Yong, LIN Jianping, LUO Renping, ZOU Yang. Study on Influence of the Geometrical Factors on Surface Deflections of Automobile Exterior Panels[J].同济大学学报(自然科学版),2018,46(04):0512~0517

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Received:March 14,2017
Revised:March 07,2018
Adopted:January 02,2018
Online: May 11,2018
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