Modeling and Simulation of Rapid Responsive Modular Spacecraft Bus System Design
- Paper number
IAC-08.B4.6.B1
- Author
Dr. Jun-Bao Li, Harbin Institute of Technology, China
- Coauthor
Dr. Long-Jiang Yu, Harbin Institute of Technology, China
- Coauthor
Prof. Sheng-He Sun, Harbin Institute of Technology, China
- Year
2008
- Abstract
The strict time limitation of development and testing of spacecrafts is necessary for the rapid responsive space. In order to meet the lead-time demand, a modular bus is applied in the spacecraft development. The modular bus can provide many standardized interfaces which is meaning for rapid responsiveness and still provide some flexibility to match the needs of the payload. However, modularity causes some problems, such as price, inefficiency and testing costs. So creating the modular spacecraft bus for rapid responsive space needs to consider many elements. This paper analyzes the keys elements including the combination scheme of modular and integration subsystem, test strategies of rapid responsive system, the mass, volume, and efficiency of the payloads of rapid responsive spacecraft, the economic indicator including cost and total revenue, which influence designing of the rapid responsive spacecraft bus, and this paper also analyze and model the relations between lead-time and reliability of system under influence by the above key elements. A constrained optimization equation is created according to the demand of rapid responsive spacecraft bus, and the optimization equation seeks to the highest efficiency and total revenue but satisfies the demand of the lead-time and reliability the system. The optimal design of rapid responsive spacecraft bus is obtained through solving the constrained optimization equation. The optimal design contains the optimal lead-time, reliability, the test strategy, modularity, mass efficiency, volume efficiency, power efficiency, and total revenue. The study has been undertaken using MATLAB simulations. Simulation indicates that the proposed model scheme is effective to design the reliable, rapid responsive, and standard bus, and the scheme is meaningful for invest optimization.
- Abstract document
- Manuscript document
(absent)