# Optimization Design of Space Camera Enclosure Based on Bionics
## 6 Discussion  
The space camera supported by the shell structure has gained widespread application in the aerospace industry. While the stiffener structure exhibits high structural integrity and load-bearing efficiency, traditional stiffener designs predominantly feature a regular distribution of rectangular or triangular shapes. The geometric dimensions of these structures were primarily determined by engineers' experience, which introduces significant uncertainty and lacks a theoretical foundation. Therefore, from a biomimetic perspective, this article aims to reduce part weight and enhance stiffness as design objectives. It conducts research on the design and optimization of space camera box structures and proposes a biomimetic optimization design method based on response surface analysis. This article summarizes the layout characteristics of _Victoria lindl_ tendons and veins, analyzes the structural similarity between _Victoria lindl_ leaves and the reinforcing ribs of the spatial camera box, employs Ansys-Solidworks joint parametric modeling to design the initial structure of the spatial camera box, and combines response surface analysis to explore the relationship between the box structure parameters and their first-order natural frequency, overall mass, and maximum deformation. Genetic algorithm is utilized to identify the optimal solution and complete the secondary optimization of the box structure. Figure 12: Random vibration analysis results. Compared to traditional reinforcement methods, this approach achieves a 54.9% reduction in redundancy of the first-order natural frequency, meeting the general requirements of 150 Hz-300 Hz in the aerospace field without excessive redundancy, making it more reasonable. Reducing the maximum deformation of the structure by 10.8% enhances the overall stiffness of the casing, ensuring the stable operation of aerospace cameras. A weight reduction of 36.9% achieves a high level of lightweighting, further saving project costs. Finally, regarding the discussion on the production and manufacturing of the space camera box designed in this article, due to the application of bionics principles, the shape is complex, especially since the distribution of reinforcing ribs is significantly different from traditional structures. This leads to considerable difficulties in processing using the previous turning process, and the production cycle will also be prolonged. However, in recent years, with the development of additive manufacturing technology, the production of bionic configuration products has become much easier. The box in this article can be produced using the Selective Laser Melting (SLM) process. The SLM process includes the following key steps: Firstly, a three-dimensional model of the metal part to be manufactured is generated using AutoCAD 2021 software. Then, the model is discretized in a specific orientation, extracting the contour data of each cross-section and generating the filling scanning path within the contour based on a specific algorithm. Next, the computer reads the scanning path information layer by layer, precisely controlling the direction and speed of the laser beam, and scanning and melting the corresponding powder on the powder bed according to the preset path, layer by layer, until the entire part is constructed. During this process, finely adjusting process parameters, such as laser power and scanning speed, ensures that the manufactured part meets the design requirements in terms of forming quality and performance. The significant advantage of SLM technology lies in its wide material adaptability and the ability to precisely manufacture complex shapes or internal features with ease. However, it also requires high costs and professional design requirements. Nevertheless, for the space camera box structure designed in this paper, SLM technology undoubtedly paves the way for it to move from concept to reality, demonstrating the huge potential of additive manufacturing technology in promoting the innovation of spacecraft structures. Conceptualization, H.L.