A natural frequency optimization of a steering knuckle was performed. It must be strong to support the loads from the road as all the car weight and reactions, in addition to this, it must be designed to prevent resonances with the components around it. The improvements developed for automotive components are evaluated as itself as well as the interaction as a subsystem as well as its interaction in the whole vehicle. We aimed to prevent squeal noise and uncomfortable vibrations between 1 and 3 kHz through optimizing the resonant frequencies of Steering Knuckle and its effect on the components around it as track control arm and disc brake. Optimization was performed modifying the geometry prior to modify the mold. Finite element modal simulations were performed using Ansa, Optistruct and HyperView V14 software. These optimizations were validated with an experimental test using a three-dimensional scanning vibrometer. Results showed that modal optimization can be performed with virtual tools obtaining reliable results.
modal analysis; steering knuckle; finite element analysis; noise
1) Engineering and Science Department, Universidad Iberoamericana Puebla, San Andres Cholula, Puebla, 72810, Mexico
2) Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Vía Atlixcayotl 2301, Reserva Territorial Atlixcayotl, Puebla, Puebla, 72453, Mexico
Guillermo Narvaez: Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Via Atlixcayotl 2301, Reserva Territorial Atlixcayotl, Puebla, Puebla, 72453, Mexico
Esau Adame and Mario Villasenor: Technical Development, Volkswagen de Mexico, Km 116 Autopista Mexico-Puebla, 72730, Mexico