Research On Pressure Prediction Of Tight Sports Pants Based On Human Lower Limb Model

With the growth of the per capita disposable income of the nation and the popularization of the concept of national fitness exercise,people’s lifestyle and material pursuit have undergone major changes.The people’s demand for improving their physical fitness through sports fitness is becoming more and more urgent.The demand for tight-fitting sportswear has also improved,and wearing comfort has become one of the main criteria for the purchase of tight-fitting clothing.Explore the influence mechanism between clothing pressure and the physiological structure of the human body,and provide a scientific theoretical basis for the design and production of tight-fitting sports pants.This topic focuses on the influence mechanism between clothing pressure and human physiological structure.It uses MIMICS to create a physiological physical model that contains the skin layer,other soft tissue layers,muscle layers,and bone layers.Definition of parameters such as Bi,Yang’s modulus.Using Japan’s AMI3037-5S-II airbag type contact pressure determination device for the lower limb clothing pressure test of the human body.The experiment divided the left leg and thigh to the ankle interval of four places.Each surface was divided into 10 segments and 11 test points.Taking the physiological structure of the human body as the starting point,the vertical distribution curve of the lower limb clothing of the human body is compared with the human body surface curve,and the following conclusions are drawn:(1)When the human body naturally stands,the vertical clothing pressure curve and the human body surface of the lower limbs of the human body and the human body surface The curve is basically consistent;(2)The vertical distribution curve of clothing pressure is affected by the internal muscle direction and distribution of the human body.The more uniform muscle distribution,the more consistent the direction of the clothing,the closer the clothing distribution curve is closer to the human body surface curve.If not,clothing pressure pressure The distribution curve fluctuates a lot,and the ups and downs are large;(3)Relatively speaking,the curve of the longitudinal clothing pressure curve of the thighs is relatively gentle than the vertical clothing pressure change curve of the calf,and the fluctuation amplitude is small.The soft tissue content is higher than the calf.In order to thoroughly study the influence mechanism between the tissue of the clothing pressure and the human lower limbs,the human lower limb model and experimental data are imported into ANSYS,and the clothing pressure contact surface extraction,material assignment,contact surface inspection and setting,boundary condition loading and clothing and clothing are loaded.Load the pressure of the skin layer,other soft tissue layers,and muscle layer clothing pressure,compare and analyze the predictive results of all layers of clothing pressure,and verify the effectiveness of the prediction results.The inner side of the thigh,the deformation of the front and middle part of the calf,and the deformation of the thighs is more than the calf;(2)the skin can offset a variable of about 2.7302e-003 mm.None of the other soft tissue layers cannot be measured;(3)Comparing the deformation between the skin layer and other soft tissue layers,other soft tissue layers and muscle layers,it is found that other soft tissues are one of the main tissues that resist external forces;(4)Through linear regression analysis,it is proved that the prediction results of the hierarchical finite element model of human lower limbs based on CT scan data are accurate and reliable,and can be used for clothing pressure prediction research.