Exploring 3 DOF upper limb dummy design method for upper limb impedance analysis

Cited 0 times inthomson ciCited 0 times inthomson ci
Exploring 3 DOF upper limb dummy design method for upper limb impedance analysis
Kim, Jinsoo
Kang, Sang Hoon
Issue Date
Graduate School of UNIST
Patients with neurological diseases such as stroke are accompanied by joint construction, rigidity, and spasticity. This phenomenon can change the inherent mechanical properties of the muscles and tendons of the disabled upper extremities, and the mechanical impedance change of the upper extremities. An investigation was conducted to produce a dummy model of upper extremities to identify these mechanical impedance changes. First, the muscles affecting the shoulder and elbow joints in the upper extremities of the human body, parameters of muscles, and the main muscles in the direction of motion described in the existing literature were investigated. And then, the relative torque of individual muscles was calculated for imitating the major muscle muscles, and the priority of the muscles for each direction of motion was selected after comparison with the main muscles. In addition, through the existing literature, the muscles and extent of stiffness in stroke patients were investigated, and through expert advice, muscles were screened by excluding those with the same function but with little impact. For the development of spring-based upper limb dummy model, the upper limb muscle stiffness value was obtained by referring to the OpenSim platform model, and the parallel elastic element stiffness value of the muscle was obtained because the objective was to observe the passive movement of the muscle. Five postures were selected for the experiment, and the muscles where parallel elastic element stiffness was identified in each posture were investigated. Afterward, we checked the Origin & Insertion of each muscle to investigate inter-muscular interference and interference with the upper limb dummy, and to prevent interference by spreading the muscle in the direction of the moment-arm. The length of the upper limb dummy frame was based on Anthropometric Parameter, and the upper limb dummy design was carried out by reflecting the above points.
Department of Mechanical Engineering
Go to Link
Appears in Collections:
Files in This Item:
Exploring 3 DOF upper limb dummy design method for upper limb impedance analysis.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record


  • mendeley


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.