The Experts below are selected from a list of 264 Experts worldwide ranked by ideXlab platform

Zhenlin Jin - One of the best experts on this subject based on the ideXlab platform.

  • Design and Dynamic Analysis of a Novel Biomimetic Robotics Hip Joint.
    Applied bionics and biomechanics, 2015
    Co-Authors: Bingyan Cui, Chen Liwen, Zhi Jun Wang, Zhao Yuanhao, Zhenlin Jin
    Abstract:

    In order to increase the workspace and the carrying capacity of biomimetic robotics Hip Joint, a novel biomimetic robotics Hip Joint was developed. The biomimetic robotics Hip Joint is mainly composed of a moving platform, frame, and 3-RRR orthogonal spherical parallel mechanism branched chains, and has the characteristics of compact structure, large bearing capacity, high positioning accuracy, and good controllability. The functions of the biomimetic robotics Hip Joint are introduced, such as the technical parameters, the structure and the driving mode. The biomimetic robotics Hip Joint model of the robot is established, the kinematics equation is described, and then the dynamics are analyzed and simulated with ADAMS software. The proposed analysis methodology can be provided a theoretical base for biomimetic robotics Hip Joint of the servo motor selection and structural design. The designed Hip Joint can be applied in serial and parallel robots or any other mechanisms.

  • Analysis of Statics and Design of Structur Parameters for a Bionic Robot Hip Joint
    Journal of Biomimetics Biomaterials and Biomedical Engineering, 2015
    Co-Authors: Bingyan Cui, Chen Liwen, Zhi Jun Wang, Yuan Hao Zhao, Li Zhan Xian, Zhenlin Jin
    Abstract:

    The Hip Joint is one of the body's important Joints, most of the lower limb activities of the human body are inseparable from the Hip Joint, a novel bionic robot Hip Joint was proposed based on 3-DOF spherical parallel mechanism. The statics performance of the bionic robot Hip Joint was analyzed, and the structure parameters were designed. First, the static transmission equation of the bionic robot Hip Joint was established using the principle of virtual works, which simplifies the calculation process of the bionic robot Hip Joint. Further, using the norm in Matrix theory, the force Jacobian matrix was introduced into the statics performance evaluation index, and the statics performance evaluation index and the global torque performance evaluation index was defined, and the performance atlas of the statics performance evaluation index was plotted at the workspace of the bionic robot Hip Joint. Moreover the objective optimal function was established basing on the global torque performance evaluation index, and the relation of the objective optimal function and the global torque performance evaluation index were analyzed. By use of fully automatic searching method, the optimal structural parameter ranges of the bionic robot Hip Joint were obtained. Analysis results show that the bionic robot Hip Joint has good static transmission performance at initial position, and the static transmission performance is decreased with increasing the workspace. Finally, using a set of optimal structural sizes parameters, a novel bionic robot Hip Joint was designed, which established the theoretical foundation for the bionic robot design and apply.

  • Kinematics Performance Analysis of a Robot Hip Joint
    Advanced Materials Research, 2013
    Co-Authors: Bingyan Cui, Zhenlin Jin
    Abstract:

    Kinematics research of mechanism is very important, the dynamic analysis and the design are based on linematics analysis. In this paper, a novel robot Hip Joint based on 3-RRR orthogonal spherical parallel mechanism is proposed, and Jacobin matrix is established. Then the linematics transmission performance evaluation index is defined. Furthermore the linematics transmission performance index is analyzed. The Hip Joint has good linematics transmission performance at the initial position. With the increase of workspace, linematics transmission performance gradually decreased. 3-RRR parallel mechanism is the ideal prototype of bionic robot and rehabilitation robot Hip Joint.

Dankai Wu - One of the best experts on this subject based on the ideXlab platform.

Michał Haraburda - One of the best experts on this subject based on the ideXlab platform.

  • Process of Hip Joint prosthesis design including bone remodeling phenomenon
    Computers & Structures, 2003
    Co-Authors: Marek Pawlikowski, Konstanty Skalski, Michał Haraburda
    Abstract:

    The design of Hip Joint prostheses is very complex process which requires close co-operation between engineers and surgeons. To design a prosthesis of higher durability one has to take natural processes occurring in bone into consideration. In the paper a process of Hip Joint prosthesis design is described. The design process was performed for a particular patient who suffered from severe trauma of a Hip Joint. A set of three prostheses was created and then some numerical calculations were carried out with the use of ADINA system. The visco-elastic properties of bone and the bone remodeling phenomenon were taken into consideration, which is a novel approach in prosthesis design. The results of the numerical analyses allowed us to decide which one of the three designed prostheses is the most capable for the patient. This way the shape optimisation process is completed. As a result of it the load acting on the designed prosthesis will be anatomically adopted by the femur.

Bingyan Cui - One of the best experts on this subject based on the ideXlab platform.

  • Design and Dynamic Analysis of a Novel Biomimetic Robotics Hip Joint.
    Applied bionics and biomechanics, 2015
    Co-Authors: Bingyan Cui, Chen Liwen, Zhi Jun Wang, Zhao Yuanhao, Zhenlin Jin
    Abstract:

    In order to increase the workspace and the carrying capacity of biomimetic robotics Hip Joint, a novel biomimetic robotics Hip Joint was developed. The biomimetic robotics Hip Joint is mainly composed of a moving platform, frame, and 3-RRR orthogonal spherical parallel mechanism branched chains, and has the characteristics of compact structure, large bearing capacity, high positioning accuracy, and good controllability. The functions of the biomimetic robotics Hip Joint are introduced, such as the technical parameters, the structure and the driving mode. The biomimetic robotics Hip Joint model of the robot is established, the kinematics equation is described, and then the dynamics are analyzed and simulated with ADAMS software. The proposed analysis methodology can be provided a theoretical base for biomimetic robotics Hip Joint of the servo motor selection and structural design. The designed Hip Joint can be applied in serial and parallel robots or any other mechanisms.

  • Analysis of Statics and Design of Structur Parameters for a Bionic Robot Hip Joint
    Journal of Biomimetics Biomaterials and Biomedical Engineering, 2015
    Co-Authors: Bingyan Cui, Chen Liwen, Zhi Jun Wang, Yuan Hao Zhao, Li Zhan Xian, Zhenlin Jin
    Abstract:

    The Hip Joint is one of the body's important Joints, most of the lower limb activities of the human body are inseparable from the Hip Joint, a novel bionic robot Hip Joint was proposed based on 3-DOF spherical parallel mechanism. The statics performance of the bionic robot Hip Joint was analyzed, and the structure parameters were designed. First, the static transmission equation of the bionic robot Hip Joint was established using the principle of virtual works, which simplifies the calculation process of the bionic robot Hip Joint. Further, using the norm in Matrix theory, the force Jacobian matrix was introduced into the statics performance evaluation index, and the statics performance evaluation index and the global torque performance evaluation index was defined, and the performance atlas of the statics performance evaluation index was plotted at the workspace of the bionic robot Hip Joint. Moreover the objective optimal function was established basing on the global torque performance evaluation index, and the relation of the objective optimal function and the global torque performance evaluation index were analyzed. By use of fully automatic searching method, the optimal structural parameter ranges of the bionic robot Hip Joint were obtained. Analysis results show that the bionic robot Hip Joint has good static transmission performance at initial position, and the static transmission performance is decreased with increasing the workspace. Finally, using a set of optimal structural sizes parameters, a novel bionic robot Hip Joint was designed, which established the theoretical foundation for the bionic robot design and apply.

  • Kinematics Performance Analysis of a Robot Hip Joint
    Advanced Materials Research, 2013
    Co-Authors: Bingyan Cui, Zhenlin Jin
    Abstract:

    Kinematics research of mechanism is very important, the dynamic analysis and the design are based on linematics analysis. In this paper, a novel robot Hip Joint based on 3-RRR orthogonal spherical parallel mechanism is proposed, and Jacobin matrix is established. Then the linematics transmission performance evaluation index is defined. Furthermore the linematics transmission performance index is analyzed. The Hip Joint has good linematics transmission performance at the initial position. With the increase of workspace, linematics transmission performance gradually decreased. 3-RRR parallel mechanism is the ideal prototype of bionic robot and rehabilitation robot Hip Joint.

M.g. Fujie - One of the best experts on this subject based on the ideXlab platform.

  • ICRA - Robotic Creation of Operating Space for Minimally Invasive Hip Joint Surgery
    Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007
    Co-Authors: Masaru Yanagihara, Jun Okamoto, N. Mitsui, M.g. Fujie
    Abstract:

    Hip Joint surgeries are commonplace in our aging society. Robotic Hip Joint surgery is performed to cut bone precisely and is expected to be performed as minimally invasive treatment. Minimally invasive Hip Joint surgery needs operating space between muscle tissues and the bone around Hip Joint. In this paper a prototype of an articulated muscle-retracting robot for minimally invasive RAO (rotational acetabular osteotomy and one of the Hip Joint surgeries) is described. The muscle-retracting robot's role is to create an operating space between muscles and the surface of the bone for the other robot, whose role is to cut bone. The mechanical structure is very thin to follow a narrow path and tough enough to scrape and retract muscles around a Hip Joint. The prototype is designed based on the required specification from the previous experiments data. The prototype has 9 DOF, in which 3 DOF arms are capable of controlling the tip position and the force between muscle tissues and the surface of the bone. Evaluation of the prototype was done by using a compliant control as scraping method of muscle tissues from surface of the bone. The capability is revealed as a scraping length on a phantom of 140 mm around human Hip Joint model and on the living tissues of 27 mm in the crest of the ilium by magnitude of maximum force of 25 N. The scraped living tissues were a narrow part around the Hip Joint. We shall continue to research it and establish a stable control method to scrape tissues.