This study began with the demand for an improved analysis and design process for the robust design of the vehicle’s towing system, triggered by performance defects found in the physical test. Research was conducted in the order of first revising the...
This study began with the demand for an improved analysis and design process for the robust design of the vehicle’s towing system, triggered by performance defects found in the physical test. Research was conducted in the order of first revising the current FE model to precisely capture the root cause of the physical test result. Detailed joint modeling including solid meshed bolt and bolt pretension was added to the FE model to capture the bolt fastening force, which was the root cause of the test defect. Consequently, possible tolerance and deviation range of design and test variables were defined and applied to the model to secure the design robustness. Using the Kriging method based on the number of factors and ranges, system response surface was derived which is applied to design the system effectively and robustly.