Features of the Synovial Fluid Film in Human Joint Lubrication
Features of the Synovial Fluid Film in Human Joint Lubrication
复制标题
人体关节润滑中滑膜液膜的特点
作者：
P. Walker;J. Sikorski;D. Dowson;M. Longfield;V. Wright
人体关节的润滑机制取决于轴承材料(关节软骨)、关节润滑剂(滑液)和操作条件(滑动或滚动速度、载荷和载荷作用时间)。软骨是在硫酸软骨素的基质中以不同方向排列的胶原纤维束的复合材料，含有很高比例的水流体1-4。根据工程标准，其表面对润滑行为非常重要，已被发现是粗糙的。对于健康的软骨，中心线平均值已被测量为30微英寸，粗糙度采取波动的形式，小的粗糙度叠加在较大波长的其他5，6。
THE mechanism of lubrication in human joints depends on the bearing material (articular cartilage), the joint lubricant (synovial fluid) and the operating conditions (sliding or rolling speeds, load and time of load application). Cartilage is a composite of collagen fibre bundles set at various orientations within a ground substance of chondroitin sulphate, and containing a high proportion of watery fluid1–4. Its surface, which is very important to the lubrication behaviour, has been found to be rough by engineering standards. The centre line average value has been measured at 30 µinch for healthy cartilage, the roughnesses taking the form of undulations with small ones superimposed on others of larger wavelength5,6.