Method for determining weight coefficients of sluice health comprehensive diagnosis
WU Zhong-ru · Journal of Hohai University · 2008
The multi-hierarchy comprehensive diagnosis index system for sluice health was established to diagnose the health status of a sluice.It is necessary to determine the relative importance(weight coefficient) of each lower layer diagnosis index influencing the upper layer index with proper methods.Then,the health status of a sluice is diagnosed gradually according to the lower layer weight coefficients and diagnosis results.The determination of weight coefficients is a core issue in the comprehensive diagnosis of sluice health.The methods of determining the weight coefficients of sluice health diagnosis were analyzed,and the analytic hierarchy process(AHP) and the improved AHP considering group decision-making were emphatically analyzed.A weight-syncretizing method was proposed based on the optimization criteria.A case study shows that more reasonable weight coefficients can be obtained by syncretizing the weight coefficients determined from different methods,so as to better diagnose health status of a sluice.