Vibration Measurement and Analysis of Knee-Ankle-Foot Orthosis (KAFO) Plastic-Metal Type

Abstract

The aim of the present paper is to measure the stresses that result from vibration for knee-Ankle-Foot-orthosis (KAFO) at the different positions during dress-up by the patient by measuring the accelerometer of (KAFO). Also, the pressure between leg and knee -Ankle-Foot-orthosis was measured by using the piezoelectric sensor. Total stresses result from applied pressure and acceleration on the KAFO numerically calculated with ANSYS 14 package. The results showed that the values of stresses at the upper KAFO (thigh) are greater than the lower KAFO(shank).this is certainly because the values of pressure in the upper leg (thigh muscles)are higher than the pressure in shank muscles.

Keywords

• Knee
• Ankle
• foot
• Orthosis
• acceleration
• Frequency