关键词: 生物基材料；镜座支架；有限元；模态分析

Abstract: The article briefly outlines the structure and construction of the rearview mirror. In response to the country's energy-saving and environmental protection advocacy, uses a new type of bio-based nylon fiberglass composite material to replace the commonly used aluminum alloy material, and makes a new grid-like design for the mirror base bracket. And the modal analysis of the rearview mirror assembly is carried out by using the commonly used finite element simulation software to verify the reliability of the material and the rationality of the design. In this article, on the basis of the finished product, the material is changed, and the bio-based nylon glass fiber material and aluminum alloy material are set as the prerequisites, and the modal analysis results of the two are compared. The results show that when the modal analysis results are almost the same, the material cost of this scheme is lower, and the manufacturing process is more simplified, which is conducive to shortening the manufacturing cycle and reducing the cost of the manufacturing process, and the mold design methods and process methods are more abundant, which provides the basis for the complexity of product structure.

Key words: Bio-based materials; Mirror holder support; Finite element; Modal analysis