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Fatigue Test Device for Stance Phase Control Knee Orthoses

机译:姿态相位控制膝关节矫形器疲劳测试装置

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摘要

Mechanical endurance testing is critical to ensuring durability and safety of novel orthosis components. Stance phase control knee orthoses present challenges in this area because of the lock/release mechanisms, dynamic range of joint motion, and in some cases, the capability of locking at different joint positions. A new mechanical fatigue tester has been developed to evaluate stance phase control knee orthosis joint designs. Electromechanical and pneumatic elements of the fatigue tester are under computer control. The user can determine applied maximum load, applied load at release, and range of motion and can set specific failure criteria. The computer control algorithm also provides automated data logging and system diagnostic information. This system has been in operation for more than 2,000,000 cycles. The time to complete one test cycle is 4.3 seconds under a 44.7-Nm load and 50?range of motion.
机译:机械耐久性测试对于确保新型矫形器组件的耐用性和安全性至关重要。由于锁定/释放机制,关节运动的动态范围以及在某些情况下锁定在不同关节位置的能力,因此姿态阶段控制膝关节矫形器在该领域提出了挑战。已经开发了一种新的机械疲劳测试仪,以评估姿态相位控制膝关节矫形器的关节设计。疲劳测试仪的机电和气动元件均由计算机控制。用户可以确定施加的最大负载,释放时施加的负载以及运动范围,并可以设置特定的故障标准。计算机控制算法还提供自动数据记录和系统诊断信息。该系统已经运行了超过2,000,000个周期。在44.7-Nm的负载和50?的运动范围内,完成一个测试周期的时间为4.3秒。

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