Dissertation > Excellent graduate degree dissertation topics show

Study on the aerodynamic stiffness of knee joint rehabilitation training based on flexible drive

Author: GaoShuai
Tutor: ZuoYan
School: Nanjing University of Technology and Engineering
Course: Mechanical Manufacturing and Automation
Keywords: pneumatic compliant actuator joint rehabilitation static and dynamiccharacteristics static stiffness variable stiffness
CLC: TH789
Type: Master's thesis
Year: 2014
Downloads: 22
Quote: 0
Read: Download Dissertation


CASS Blue Book points out China’s elderly population in2013will exceed200million in2013. The continuous degradation of the joints of older people, people of different sports injuries and accidents leads to the increasing physical disabilities of patients, which provide opportunities for the development of rehabilitation trainer. Because pneumatic compliant actuator is a new type of good flexibility, safe pneumatic drive elements, so it has broad application prospects in the field of rehabilitation medicine. However, the exact expression of its static and dynamic model is very difficult, and fully practical pneumatic muscle actuator needs to solve many problems.The purpose of rehabilitation is to maintain physical function in patients with the greatest degree of limb restores normal movement. Current research is mostly Mckibben pneumatic muscles, and many scholars have studied it, but this is a shorter stroke rehabilitation, generally cannot achieve active training. In active/passive different training phase, we need to take different rehabilitation methods for different patients at different times. This requires the end of the flexible drive having different stiffness in order to provide different damping force or the driving force and the force of the adaptive control can be performed. Therefore, the research works of this thesis are shown as follows:(1) Research of the static and dynamic mathematical model of pneumatic compliant actuator. With pneumatic compliant actuator as an object, we present to stretch the length of the correction factor, and improve static output force model that captures the main factors affecting the output force of pneumatic artificial muscles working length and gas pressure, and then based on the analysis of the pneumatic compliant actuator, we take an experiment. Finally we find the mathematical model to improve is correct by comparing test and model; we establish a dynamic mathematical model for the pneumatic compliant actuator control systems, through simulation and experimental,we analysis the dynamic characteristics of pneumatic muscle systems, which lays the foundation of stiffness.(2) Research of pneumatic muscle stiffness. Based on improved model, we derive the expression of its static stiffness, and analyze the main factors affecting the static pneumatic muscle stiffness; by comparing the model and experiment, we prove the expression of the static stiffness is correct; we give a scientific and reasonable definition of variable stiffness and derive the expression of pressure stiffness with the main factors; The paper establishes a complete mathematical model of dynamic stiffness, through computer simulation and experiment verifies its rationality; With the confrontation installed pneumatic muscle as an object, we find the initial of pneumatic pressure is the main factors affecting stiffness.(3) Research of joint rehabilitation of variable stiffness control. Based on the pneumatic muscles and stiffness characteristics of the study, the paper proposes rehabilitation of variable stiffness joint control strategies and develops adaptive control system based on LABVIEW.

Related Dissertations

  1. Research on Dynamic Characteristics of Rolling Main Drive System by Taking into Account of the Gear Variable Stiffness,TH113
  2. The Effect of Isokinetic Exercise in the Early Rehabilitation of Postoperative Fracture of the Elbow,R687.3
  3. Analysis and Optimization Design of Electric Spindle Based on Stiffness Calculation of Ball Bearing,TH133.3
  4. Blade Multi-axis Linkage NC Machine Tool Dynamic Characteristic Research,TG659
  5. The Analysis and Research of Stiffness and Efficiency for Planetary Roller Screw,TH136
  6. Analysis and Study and Improved the Design of the Tapered Leaf Spring for the Light Truck,U463.334
  7. Antagonistic Pneumatic Muscle Based on Joint Research-Style Bionic,TP242.2
  8. The Finite Element Analysis for Static and Dynamic Characteristics of the Automotive Air Spring,U463.334.2
  9. Design of the Suspension Damping System Based on Variable Stiffness for Vehicle,U463.33
  10. Study on Piled Raft Foundation of High-rise Building and Variable Rigidity Design Method for Balance Settlement,TU473.1
  11. Study on Conceptual Design of Variation Rigidity Composite Foundation Based on the Controlling Settlement Principle,TU473.1
  12. Research on the Variable Stiffness Treatment Technology and Design Method of High Fill Embankment,U416.1
  13. Study on the Piled Raft Foundation Leveling Design of Variable Stiffness,TU473.1
  14. Predictive Control of Hip-Joint Rehabilitation Training Device Driven by Pneumatic Muscle Actuator,R49
  15. Optimization of Shear Wall Stiffness of Frame-Shear Wall Structure Based on Layer Unit,TU398.2
  16. Simulation of the gear system dynamic strength and variable stiffness,TH132.41
  17. Research on Parametric Modeling and Modal Analysis for Frame Structure of Car Body,U462
  18. Research on Fatigue Damage of Asphalt Mixture under Different Loading Frequencies,U414
  19. Finite Element Analysis of Turning & Milling Machining Center,TG659
  20. Research on the Thin-Walled Structure in Bumper for Pedestrian Protection,U463.326
  21. A Numerical Analysis of the Vertical Bearing Behavior of Piled Raft Foundations with Variable Pile Stiffness,TU473.1

CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Medical and health devices > Other medical devices
© 2012 www.DissertationTopic.Net  Mobile