Applied Mathematics and Mechanics (English Edition) ›› 2023, Vol. 44 ›› Issue (10): 1739-1760.doi: https://doi.org/10.1007/s10483-023-3037-9

• Articles • Previous Articles     Next Articles

Nonlinear dynamic response and stability analysis of the stapes reconstruction in human middle ear

Lele WANG1,2, Liang WANG1,2, Yueting ZHU3, Zhanli LIU4, Yongtao SUN1,2, Jie WANG5,6,7, Hongge HAN1,2, Shuyi XIANG4, Huibin SHI4, Qian DING1,2   

  1. 1. Department of Mechanics, Tianjin University, Tianjin 300350, China;
    2. Tianjin Key Laboratory of Nonlinear Dynamics and Control, Tianjin University, Tianjin 300350, China;
    3. Department of Otolaryngology, Head and Neck Surgery, Tianjin Children's Hospital, Tianjin University, Tianjin 300400, China;
    4. School of Aerospace Engineering, Tsinghua University, Beijing 100084, China;
    5. Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China;
    6. Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100730, China;
    7. Beijing Engineering Research Center of Audiological Technology, Beijing 100730, China
  • Received:2023-07-10 Revised:2023-08-22 Published:2023-09-25
  • Contact: Yongtao SUN, E-mail: ytsun@tju.edu.cn
  • Supported by:
    the National Natural Science Foundation of China (Nos.12072222, 12132010, 12021002, 11991032, and 12372019), the State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures of China (No.SKLTESKF1901), and the Aeronautical Science Foundation of China (No.ASFC-201915048001)

Abstract: Stapes fracture causes hearing loss and instability in the middle ear hearing system (MEHS). The material used in the stapes reconstruction restores stapes, but the effects of the nonlinear material parameters on the stability of the MEHS are still unknown. To address this challenge, the nonlinear dynamic response and stability of the stapes reconstruction are investigated using a multi-degree-of-freedom mechanical model. The material parameters of the implant are tentatively determined by analyzing the natural frequencies of the undamped system. The dynamical properties of the MEHS are characterized under different external excitations. The approximate solution of the MEHS near the resonant frequency is derived through the multiple-time-scale method (MTSM). The results show that the nonlinear stiffness of the material has little influence on the MEHS in the healthy state, but it causes resonant phenomena between the ossicle and the implant in the pathological state.

Key words: crus fracture of stapes, stapes reconstruction, dynamic analysis, bifurcation analysis, multiple-time-scale method (MTSM)

2010 MSC Number: 

APS Journals | CSTAM Journals | AMS Journals | EMS Journals | ASME Journals