【摘要】 【目的】探究六边形织构棱边对PA66材料与氯丁橡胶摩擦副振动行为的影响，揭示棱边长度对界面接触应力与振动抑制的作用规律，为低振动传动部件表面设计提供参考。【方法】首先，基于仿生学原理设计六边形织构与平行织构，构建两类织构的对比研究基础；其次，采用Abaqus软件建立摩擦副有限元模型，定义材料参数，分析不同织构尺寸下的接触应力分布与振动响应，提供理论仿真支撑；然后，利用激光加工技术在PA66材料表面制备织构试样，保障试验样本的一致性与规范性；最后，通过HCM-5型往复摩擦磨损试验机测试摩擦过程中的振动加速度，验证仿真结果的可靠性。【结果】六边形织构单位面积内棱边更长，可有效打断摩擦界面连续接触、改善应力集中；当织构尺寸类型为E时，其棱边长度较平行织构增加38.1%，界面最大接触应力降低8.8%，摩擦振动加速度幅值下降25%，展现出更优的减振性能。更多还原

【Abstract】 [Objective] The influence of hexagonal texture edges on the vibration behavior of the friction pair composed of PA66 material and chloroprene rubber was investigated, and the action law of edge length on interface contact stress and vibration suppression was revealed, so as to provide a reference for the surface design of low-vibration transmission components. [Methods] Firstly, hexagonal textures and parallel textures were designed based on bionic principles to establish a comparative research foundation for the two types of textures. Secondly, a finite element model of the friction pair was established using Abaqus software, material parameters were defined, and the contact stress distribution and vibration response under different texture sizes were analyzed to provide theoretical simulation support. Then, textured samples were prepared on the surface of PA66 material by laser processing technology to ensure the consistency and standardization of test samples. Finally, the vibration acceleration during friction was tested by an HCM-5 reciprocating friction and wear testing machine to verify the reliability of the simulation results. [Results] The results show that the hexagonal textures have longer edges per unit area, which can effectively interrupt the continuous contact of the friction interface and improve stress concentration. When the texture size type is E, the edge length of the hexagonal texture is 38.1% longer than that of the parallel texture, the maximum interface contact stress is reduced by 8.8%, and the friction vibration acceleration amplitude is decreased by 25%, showing better vibration reduction performance.更多还原