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Lower Limb Rehabilitation Robot Based Five-bar Mechanism Design And Analysis

Posted on:2015-04-12Degree:MasterType:Thesis
Country:ChinaCandidate:H Y WangFull Text:PDF
GTID:2298330467484372Subject:Mechanical manufacturing and automation
Abstract/Summary:
Academy of Social Sciences released the "China Aging Development Report (2013)" pointed out that China will usher in the first peak of elderly population growth, as in2013the elderly population has exceeded200million mark, China will enter an agingsociety,the phase of old before getting rich. How to make older people have a happy oldage, has been widely concerned about the community, the government also introduced aseries of measures to ensure the quality of life of older persons.According to incomplete statistics, the number of deaths worldwide each year about4.6million stroke, stroke has become one of the three major causes of death in recentyears older.’Stroke’ limb movement disorder in elderly patients with severely weakeneddue to the confidence of the elderly living skills and life, how to solve this problem toprotect the elderly have become the basis for a happy old age. Clinical proof of strokepatients immediate, aggressive intervention is the key to self-care ability and confidencefor life stroke patients recover.The physical structure of the human body through the analysis of the lower limb,lower limb motor control of human movement analysis and experimental characteristics,derived its lower limb movement trajectories, angles and patterns of movement velocity,thus providing a reference for the design of the lower limb rehabilitation robots.First, using analytical method for analysis of five linkage, which are derivedanalytic and inverse kinematics to identify the impact of its trajectory parameters.Clinical rehabilitation medicine theory combined with lower limb rehabilitation robot tothe requirements proposed a lower limb rehabilitation robot based on five-barmechanism solution. Through the establishment of the motion model simulation resultsshow that by adjusting the phase angle of the body or chassis of the two cranks toachieve changes in the trajectory of output points, so as to achieve the purpose ofadjustment of the hip and knee range of motion, or maximum, This section needs toprove the use of lower limb rehabilitation robots to meet the different stages of therehabilitation of patients.By analyzing the characteristics of symmetrical five-bar linkage based on lowerlimb rehabilitation robot training mode, which can be adjusted with the working status,the training mode diverse, both to meet the patients at different stages of rehabilitationtraining requirements, but also to meet the different legs use the needs of patients with a long, long-term use can achieve the purpose of the repair function.
Keywords/Search Tags:Lower limber rehabilitation, robot, Five linkage, Kinematic analysis
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