Abstract
Conventional estimation method of contact stiffness of joints has been limited to where the relationship between load and real contact area indicates linear characteristics. However if roughness and waviness of the surface become larger, this condition of the relationship shows non-linear characteristics and then it was revealed the conventional estimation method cannot be applied to. Therefore, in this paper, more generic estimation method of contact stffiiess of joints which can be applied to the joint interface with various surface roughness condition was considered. As a result, it was concluded that even if this relationship shows non-linear characteristics, the contact stiffness per real contact area can be estimated by proposed method with power approximation function.
