Study of the friction-induced vibration and contact mechanics of artificial hip...

• Autor(es): Askari, Ehsan ; Flores, Paulo ; Dabirrahmani, Dane ; Appleyard, Richard
• Data: 2014
• Identificador Persistente: http://hdl.handle.net/1822/28153
• Origem: RepositóriUM - Universidade do Minho
• Assunto(s): Friction-induced vibration; Multibody dynamics; Contact mechanics; Artificial hip joints
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

The main objective of this work is to study the effect of friction-induced vibration and contact mechanics on the maximum contact pressure and moment of artificial hip implants. For this purpose, a quasi-static analysis and a multibody dynamic approach are considered. It is shown that the multibody dynamic model is effective at predicting contact pressure distribution and moment of hip implants from both accuracy and time-consuming points of view. Finally, from the computational simulations performed, it can be observed that the friction-induced vibration influences the contact pressure and the moment in hip implants by introducing an oscillating behaviour in the system dynamics.