Topology Optimization of Automotive Vibration Test Jig: Natural Frequency Maximization and Weight Reduction DOI Creative Commons
Jun Won Choi,

Min Gyu Kim,

Jung Jin Kim

и другие.

Mathematics, Год журнала: 2025, Номер 13(11), С. 1716 - 1716

Опубликована: Май 23, 2025

Vibration test jigs are essential components for evaluating the dynamic performance and durability of automotive parts, such as lamps. This study aimed to derive optimal jig configurations that simultaneously maximize natural frequency minimize structural weight through topology optimization. A fixed-grid finite-element model was constructed by incorporating realistic lamp mass boundary conditions at mounting interfaces simulate actual testing scenarios. Four optimization formalizations were investigated: (1) compliance minimization, (2) minimization with natural-frequency constraints, (3) maximization, (4) maximization constraints. Both full-domain reduced-domain designs analyzed assess influence domain scope. The results indicate formulations use only objectives often result in shape divergence convergence instability. In contrast, strategies a constraint—particularly constraint—exhibited superior achieving balance between stiffness weight. Furthermore, configuration enhanced owing greater design freedom, although this resulted trade-off increased These findings underscore importance selecting appropriate formalization settings secure reliable vibration support necessity multi-objective frameworks practical vibration-sensitive structures.

Язык: Английский

Topology Optimization of Automotive Vibration Test Jig: Natural Frequency Maximization and Weight Reduction DOI Creative Commons
Jun Won Choi,

Min Gyu Kim,

Jung Jin Kim

и другие.

Mathematics, Год журнала: 2025, Номер 13(11), С. 1716 - 1716

Опубликована: Май 23, 2025

Vibration test jigs are essential components for evaluating the dynamic performance and durability of automotive parts, such as lamps. This study aimed to derive optimal jig configurations that simultaneously maximize natural frequency minimize structural weight through topology optimization. A fixed-grid finite-element model was constructed by incorporating realistic lamp mass boundary conditions at mounting interfaces simulate actual testing scenarios. Four optimization formalizations were investigated: (1) compliance minimization, (2) minimization with natural-frequency constraints, (3) maximization, (4) maximization constraints. Both full-domain reduced-domain designs analyzed assess influence domain scope. The results indicate formulations use only objectives often result in shape divergence convergence instability. In contrast, strategies a constraint—particularly constraint—exhibited superior achieving balance between stiffness weight. Furthermore, configuration enhanced owing greater design freedom, although this resulted trade-off increased These findings underscore importance selecting appropriate formalization settings secure reliable vibration support necessity multi-objective frameworks practical vibration-sensitive structures.

Язык: Английский

Процитировано

0