仿螳螂虾鳌结构/功能的玄武岩纤维增强复合材料碟簧研究

Study on basalt fiber reinforced composite disc spring of bionic structure/function of dactyl club of mantis shrimp

针对碟形弹簧质量大且不耐腐蚀等问题,基于螳螂虾鳌具有的独特螺旋纤维结构,借助玄武岩纤维具有的密度小、耐腐蚀和环保等特性,构建了仿螳螂虾螯玄武岩纤维增强复合材料碟簧的有限元理论模型,并探寻了单向玄武岩纤维织物螺旋铺排角度与复合材料碟簧载荷抗力之间的作用规律。计算结果表明:单向玄武岩纤维织物螺旋铺排角度为90°时,复合材料碟簧可获得最大载荷抗力6244 N,较非螺旋铺排的单向玄武岩纤维织物复合材料碟簧的载荷抗力(4846 N)提升28.90%,这归因于纤维铺排角度与碟簧环形对称结构的协同作用。计算结果与验证试验结果一致。

In view of problem that the disc spring has defects of high weight and corrosion intolerance,based on the unique helicoidal fiber structure of the dactyl club of mantis shrimp,in virtue of the small density,corrosion resistance and environmental friendly characteristics of basalt fiber,the finite element model of the basalt fiber reinforced composite disc spring of the bionic structure of dactyl club of mantis shrimp was constructed.The interaction rule between the helicoidal laying angle of the unidirectional basalt fiber fabric and the load resistance of the composite disc spring was explored.The calculation results show that the maximum load resistance of the composite disc spring is up to 6244 N when the helicoidal laying angle of the unidirectional basalt fiber fabric is 90°,and it has an increase of 28.90%from that of the non-helicoidal laying unidirectional basalt fiber fabric composite disc spring(4846 N),which is due to the synergy between the fiber laying angle and the circular symmetry structure of the disc spring.The calculation results are consistent with the verification experiment results.