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防污涂料结合水下清洗是满足大型舰船防污要求的有效措施。本文通过对清洗时刷具的受力分析,建立了清洗刷磨刷损耗力学模型,随后对涂层点接触摩擦过程进行了研究,将涂层的磨刷功分解为涂层表面的黏着能和涂层分子链的断裂能,得到了涂层点接触摩擦系数。最后,利用建立的力学模型分析了磨刷力矩与正压力、清洗刷半径、刷丝数量、涂层弹性模量和硬度等因素的关系。
Anti-fouling paint combined with underwater cleaning is an effective measure to meet the requirements of anti-fouling of large ships. In this paper, the brush wear mechanics model of the brush was established by analyzing the force of the brush during cleaning. Then the contact friction process of the coating was studied. The brushing power of the coating was decomposed into the adhesion energy of the coating surface. The fracture energy of the coating molecular chain, get the point contact friction coefficient of the coating. Finally, the relationship between the brushing torque and the positive pressure, the radius of the cleaning brush, the number of brush filaments, the elastic modulus and the hardness of the coating were analyzed by using the established mechanical model.