Research on Risk Evaluation in Filling System of Space Launch Site
Zhao Jiguang · Aerospace Control · 2012
Aiming at the subjective and random problems in space launch site filling system risk evaluation(FSRE),a new method based on the synthetic cloud with multi-attributes to assess FSRE is proposed.Firstly,the calculation of risk source weights in filling system is transferred into the evaluation of attribution importance in the rough set theory by attribution reduction arithmetic,which makes the risk source weights more objective and reasonable.Secondly,synthetic cloud formula is improved and weight coefficient is introduced to uncertain calculation directly so that it can take the various effects that caused by score error of filling system indices into consideration fully.The evaluation results show that the current performance of filling pump is good,therefore,the danger in filling system exists and it must be replaced by a new one due to the risks would cause.The method can get more exact and subtle information,which makes the results approximate to the actual situation.