图1 实验动作分解图

Fig. 1 Experimental action breakdown diagram

图2 实验区域定义与网格划分((a)膝关节网格划分图；(b)膝围线纵向均分点)

Fig. 2 Definition of experimental area and grid division ((a) Mesh division diagram of knee joint; (b) Longitudinal midpoint of knee circumference line)

图3 膝关节点云数据三维扫描((a)膝关节扫描图；(b)膝关节标记点粘贴图)

Fig. 3 3D scanning of knee joint point cloud data ((a) Knee joint scanning image; (b) Knee joint marker stickers)

图4 扫描模型处理与数据提取方法((a)扫描模型；(b)数据提取流程)

Fig. 4 Scanning model processing and data extraction methods ((a) Scan the model; (b) Data extraction process)

图5 下肢右膝皮肤拉伸-收缩网格分布图

Fig. 5 Distribution map of stretching contraction grid on the skin of the right knee of the lower limb

图6 实验数据处理过程

Fig. 6 Experimental data processing process

图7 绘制切分线并导入GH

Fig. 7 Draw tangent lines and import them into GH

图8 提取膝关节特征截面线

Fig. 8 Extracting knee joint feature cross-sectional lines

图9 优化与拟合膝关节特征截面线

Fig. 9 Optimization and fitting of knee joint characteristic cross-sectional lines

图10 构建膝关节护具覆盖面

Fig. 10 Building knee joint protection coverage

图11 特征截面线型值点曲率值提取

Fig. 11 Extraction of curvature values for type value points

图12 型值点压力数值色阶图

Fig. 12 Color scale diagram of pressure values at type points

图13 各个角度模型曲率压力分布云图((a)前侧；(b)外侧；(c)后侧；(d)内侧)

Fig. 13 Curvature pressure distribution cloud map of models at various angles ((a) Front; (b) Outside; (c) Back; (d) Inside)

图14 膝关节护具功能分区图((a)正面；(b)后面)

Fig. 14 Functional zoning diagram of knee joint protectors ((a) Front; (b) Back)

图15 膝关节护具尺寸设计((a)正面；(b)侧面)

Fig. 15 Size design of knee joint protectors ((a) Positive; (b) Side view)

图16 膝关节护具织物刚度定性分区优化设计图((a)护具分区设计；(b)护具侧面支撑设计；(c)腘窝区域降密设计)

Fig. 16 Qualitative zoning optimization design diagram for stiffness of joint protective equipment fabric ((a) Protective gear zoning design; (b) Side support of protective gear design; (c) Design of density reduction in the popliteal fossa area)

图17 膝关节与护具模型((a)均匀针织护具；(b) X加压型护具；(c)膝关节变刚度护具)

Fig. 17 Knee joint and protective gear model ((a) Uniform knitted protective gear; (b) X pressurized protective gear; (c) Knee joint stiffness protective gear)

图18 网格模型((a)骨骼；(b)肌肉软组织；(c)护具)

Fig. 18 Mesh model ((a) Bones; (b) Muscle and soft tissue; (c) Protective gear)

图19 护具穿戴效果图((a)护具A；(b)护具B；(c)护具C)

Fig. 19 Wearing effect picture of protective equipment ((a) Gear A; (b) Gear B; (c) Gear C)

图20 实验过程图((a)压力测量点位置；(b)护具测量点压力采集)

Fig. 20 Experimental process diagram ((a) Location of pressure measurement points; (b) Pressure collection at protective gear measurement points)

图21 护具测量点压力变化图

Fig. 21 Pressure test line chart

图22 实验过程图((a)前侧电极片粘贴；(b)右侧电极片粘贴；(c)后侧电极片粘贴；(d)下肢肌电信号采集)

Fig. 22 Experimental process diagram ((a) Front electrode sticking; (b) Right electrode sticking; (c) Rear electrode plate pasting; (d) Lower limb electromyographic signal acquisition)

图23 下肢肌肉肌电数据变化图

Fig. 23 Changes in electromyographic data of lower limb muscles ((a) MAV; (b) RMS)