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A new approach of friction model for tendon-sheath actuated surgical systems : nonlinear modelling and parameter identification

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : A new approach of friction model for tendon-sheath actuated surgical systems : nonlinear modelling and parameter identification
นักวิจัย : Do, T. N. , Tjahjowidodo, Tegoeh , Lau, Michael Wai Shing , Phee, Soo Jay
คำค้น : DRNTU::Engineering::Mechanical engineering::Mechatronics
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Do, T. N., Tjahjowidodo, T., Lau, M. W. S., & Phee, S. J. (2015). A new approach of friction model for tendon-sheath actuated surgical systems : nonlinear modelling and parameter identification. Mechanism and machine theory, 85, 14-24. , 0094-114X , http://hdl.handle.net/10220/24237 , http://dx.doi.org/10.1016/j.mechmachtheory.2014.11.003
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Mechanism and machine theory
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Nonlinear friction in tendon-sheath mechanism (TSM) introduces difficulties in predicting the end-effector force inside the human body during surgical procedures. This brings a critical challenge for surgical robots that need high fidelity in haptic devices. This paper presents a new friction model for a TSM in surgical robots. The model considers the TSM as an element disregarding the tendon sheath curvature and permits an arbitrary configuration of sheath. It allows for the accurate modelling of friction force at both sliding and presliding regimes. Unlike existing approaches in the literature, the model employs not only velocity but also acceleration information. It is also able to capture separate hysteresis branches in the large displacement using a unique differential equation. Transition between the two regimes is smooth. To validate the approach, an experimental setup is developed to measure the tensions at both ends of the TSM. The model parameters are identified and experimentally validated using an optimization method and different types of input signals. It assures an accurate prediction of nonlinear hysteresis behavior of TSM, especially at near zero velocities. This model can be used to provide an estimate of the friction force in a haptic feedback device to the surgeons.

บรรณานุกรม :
Do, T. N. , Tjahjowidodo, Tegoeh , Lau, Michael Wai Shing , Phee, Soo Jay . (2557). A new approach of friction model for tendon-sheath actuated surgical systems : nonlinear modelling and parameter identification.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Do, T. N. , Tjahjowidodo, Tegoeh , Lau, Michael Wai Shing , Phee, Soo Jay . 2557. "A new approach of friction model for tendon-sheath actuated surgical systems : nonlinear modelling and parameter identification".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Do, T. N. , Tjahjowidodo, Tegoeh , Lau, Michael Wai Shing , Phee, Soo Jay . "A new approach of friction model for tendon-sheath actuated surgical systems : nonlinear modelling and parameter identification."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Do, T. N. , Tjahjowidodo, Tegoeh , Lau, Michael Wai Shing , Phee, Soo Jay . A new approach of friction model for tendon-sheath actuated surgical systems : nonlinear modelling and parameter identification. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.