국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Similarity Rules for Scaling Solar Sail Systems
저자	Canfield, Stephen L.;; Peddieson, John;; Garbe, Gregory
Keyword	COSTS;; LOADS (FORCES); MATHEMATICAL MODELS;; PROTOTYPES;; SCALING LAWS;; SOLAR PROPULSION;; SOLAR SAILS
URL	http://hdl.handle.net/2060/20100035250
보고서번호	M10-0055
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	Future science missions will require solar sails on the order of 200 square meters (or larger). However, ground demonstrations and flight demonstrations must be conducted at significantly smaller sizes, due to limitations of ground-based facilities and cost and availability of flight opportunities. For this reason, the ability to understand the process of scalability, as it applies to solar sail system models and test data, is crucial to the advancement of this technology. This paper will approach the problem of scaling in solar sail models by developing a set of scaling laws or similarity criteria that will provide constraints in the sail design process. These scaling laws establish functional relationships between design parameters of a prototype and model sail that are created at different geometric sizes. This work is applied to a specific solar sail configuration and results in three (four) similarity criteria for static (dynamic) sail models. Further, it is demonstrated that even in the context of unique sail material requirements and gravitational load of earth-bound experiments, it is possible to develop appropriate scaled sail experiments. In the longer term, these scaling laws can be used in the design of scaled experimental tests for solar sails and in analyzing the results from such tests.