Composite mechanics and energy method based stiffness prediction model for composite leaf springs

Shixiang Yang, Wenku Shi ^[1] ; Zhiyong Chen ^[1] ; Chen Qian ^[1] ; Changhai Yang ^[1] ; Liuliu Hang ^[1]
1. [1] Jilin University
  
  Jilin University
  
  China
Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 47, Nº. 3, 2019, págs. 375-386
Idioma: inglés
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Resumen
- Predicting the stiffness of composite leaf spring accurately is the key to improve vehicles’ performance. In this paper, a stiffness prediction model which is based on composite mechanics and energy method is proposed.
  
  Influence of un-coincident between neutral layer and middle of the thickness of each rectangular cross-section is considered. Calculation based on finite element method, existing theoretical method and bench test are carried out. Compared with these results, the model proposed in this paper can predict stiffness accurately. Besides, influences parameters are analyzed. The proposed model has a certain guiding significance for the lightweight of vehicles.