Abstract
In this paper the modelling of special biomechanical mechanism and application of shape memory materials are presented. The model of the human middle ear is made as multibody system. The basic 3dof ear model of the healthy middle ear is modified to represent the damaged ear. A damaged of the ossicular chainis taken into account by adding gap in visco-elastic joints. In addition, an attempt of the ossicles chain reconstruction through prosthesis made of shape memory alloy is presented. Moreover, a new description of the hysteresis sub-loop which characterise prosthesis material is proposed. Finally, dynamic responses of healthy, damaged and reconstructed models of the middle ear are compared by quality index.
Highlights
The human body is a complex object that receives information from the environment using the senses: eyesight, hearing, touch
This biomechanical system includes such elements as: the external ear canal terminated with tympanic membrane, three ossicles and the cochlea
The dynamic responses of the considered models: the healthy ear, the damaged ear and the reconstructed ear with the help of SMA prosthesis are compared by a proposed quality index
Summary
The human body is a complex object that receives information from the environment using the senses: eyesight, hearing, touch. In paper [3] Feng and Gan present the multibody model, where six lumped masses are connected by visco-elastic joints This biomechanical system includes such elements as: the external ear canal terminated with tympanic membrane, three ossicles (so called: the malleus, the incus, the stapes) and the cochlea. In paper [4] the authors limited the model only to the middle ear part This approach allows testing the transmission of the signal (sound) through the hearing ossicles. The damage of this type can be cured through the middle ear prosthesis. The dynamic responses of the considered models: the healthy ear, the damaged ear and the reconstructed ear with the help of SMA prosthesis are compared by a proposed quality index
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