Composite Satellite Mount Structure for Lightweight Vibration Damping
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Solution Overview
Problem
Existing satellite mounts lack sufficient lightweight design and vibration damping capacity, leading to inadequate performance in isolating and damping vibrations that can affect the normal operation of spacecraft instruments and equipment.
Innovation Solution
A vibration isolation/damping satellite mount made of chopped carbon fiber reinforced thermoplastic composite material, featuring a bearing surface cylinder area and bridge-type supporting legs with a triangular vertical plate force transmission structure, ribbed reinforcing structure, and an integrated molding design, optimized through finite element analysis and topological optimization for enhanced structural strength and reduced weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional satellite mount structures are used, then structural strength is maintained, but weight is excessive and vibration damping performance is insufficient
Solution Approach 1:
The patent employs chopped carbon fiber reinforced thermoplastic composite material to replace traditional metallic materials. This composite material provides high specific strength (strength-to-weight ratio), enabling significant weight reduction while maintaining the required structural strength for satellite mount applications.
Solution Approach 2:
The mount structure is divided into multiple functional regions including bridge-type supporting legs with triangular vertical plate force transmission structures, ribbed reinforcing structures, and bearing surface cylinder areas. This segmentation allows optimized load distribution and vibration damping in different regions while minimizing overall weight.
2Object-affected harmful factors
If traditional satellite mount structures are used, then structural stability is maintained, but vibration damping capacity is insufficient
Solution Approach 1:
The patent incorporates ribbed reinforcing structures and triangular vertical plate force transmission structures that are specifically designed to dampen vibrations. These structures dissipate vibrational energy through controlled deformation and friction, reducing the transmission of harmful vibrations to sensitive satellite instruments while maintaining structural stability.
Solution Approach 2:
The chopped carbon fiber reinforced thermoplastic composite material inherently provides excellent vibration damping characteristics due to the friction and energy dissipation mechanisms within the composite structure. This material property enables effective vibration isolation while preserving structural integrity under various loading conditions.
3Weight of moving object
If lightweight design is implemented, then weight is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent integrates multiple functional elements into a unified monolithic structure. The bridge-type supporting legs, ribbed reinforcing structures, triangular vertical plate force transmission structures, and bearing surfaces are all formed as a single integrated component through injection molding, eliminating the need for separate parts and complex assembly procedures despite the sophisticated structural design.
4Object-affected harmful factors
If complex structural optimization is applied, then vibration isolation performance is improved, but manufacturing difficulty increases
Solution Approach 1:
The complex optimized structure is manufactured as a single integrated component using injection molding technology. This manufacturing process can accommodate the sophisticated geometric features including ribbed structures, triangular force transmission elements, and bearing surfaces without requiring complex tooling or multi-step manufacturing procedures, thereby maintaining ease of manufacture despite the advanced structural design.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The optimized satellite mount achieves improved vibration isolation and damping performance while maintaining structural strength, resulting in a lightweight, cost-effective, and scalable solution that meets the requirements for connectivity, overall strength stability, and service life under complex working conditions.
Implementation Method 1
The chopped carbon fiber reinforced thermoplastic composite material has excellent specific strength, rigidity, anisotropy, corrosion resistance, fatigue resistance, shock absorption, energy absorption and other characteristics
Implementation Method 2
The chopped carbon fiber reinforced thermoplastic composite material has excellent specific strength, rigidity, anisotropy, corrosion resistance, fatigue resistance, shock absorption, energy absorption and other characteristics
Implementation Method 3
the thermoplastic composite material has the advantages of convenience in storage, high molding efficiency, fusable welding, reduced manufacturing cycle, repeated heating and melting, reusing and cost saving
Data Source
AI summary
A vibration isolation/damping satellite mount of a chopped carbon fiber reinforced thermoplastic composite material mainly includes two parts, and the two parts are connected through bolts. Considering the limitation of the molding process, the mount configuration is further optimized, and the mount structure is prepared by using the injection molding process. Furthermore, the vibration isolation/damping satellite mount of the chopped carbon fiber reinforced thermoplastic composite material prepared in the present invention can be used for large loads and complex working conditions, and the connectivity, overall strength stability, vibration isolation performance and service life of the mount all meet the design requirements. The present invention provides an efficient optimization design and manufacturing method for engineering manufacturing of thermoplastic composite materials, and vibration isolation/damping satellite mount manufactured by the method is low in cost, high in practicability and easy to produce on a large scale.