Analysis on Dimensional Reduction Method for Reliability Assessment with Few Data by Means of Multiple Factors

Abstract

Lack of data is an obstacle to realize accurate assessment of reliability. Dimensional reduction method was successfully used for reliability assessment with few data by means of multiple factors. In order to generalize the dimensional reduction method for reliability assessment and expand its application area widely, this paper presents a general definition of the concept, algorithm and application area of dimensional reduction method for reliability assessment and analyzes the properties of this method, such as selection of factors, uniqueness of dimensional reduction results, determination of dimensional reduction sequence, etc. Some simulations have been made based on the actual data to verify the effectiveness of dimensional reduction method for reliability assessment.