Liang Ce, Li Min, Li Yi, Liang Jicai, Han Qigang
Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130025, China.
Chongqing Research Institute, Jilin University, Chongqing 401123, China.
Polymers (Basel). 2023 Jan 24;15(3):606. doi: 10.3390/polym15030606.
Inspired by the convex hull structure of the dung beetle head's surface, we extracted the non-smooth surface morphology of its head and designed a rubber bushing with a representative structure according to the bionics principle. According to the fitting results of the test data, Ogden N3-Prony N3 was selected as the hyper-viscoelastic constitutive model of the rubber material. Then, the two-direction (radial, axial) motion characteristics of the flexible friction pair in the rubber bushing were systematically analyzed from the aspects of stress, strain and thermal effect through the combination of numerical simulation and experimental research. Finally, the bionic design with the best drag reduction and wear resistance was determined.
受蜣螂头部表面凸包结构的启发，我们提取了其头部的非光滑表面形态，并根据仿生原理设计了具有代表性结构的橡胶衬套。根据试验数据的拟合结果，选择Ogden N3-Prony N3作为橡胶材料的超粘弹性本构模型。然后，通过数值模拟与实验研究相结合的方式，从应力、应变和热效应等方面系统地分析了橡胶衬套中柔性摩擦副的双向（径向、轴向）运动特性。最后，确定了具有最佳减阻和耐磨性能的仿生设计。
