Synthesis Assessment of Working Reliability for Electric Power Torpedo in Sea Trial Based on CMSR Method

Aiming at the problem of less test data for electric power torpedoes, this paper proposes an assessment method of electric power torpedoes working reliability in a sea trial based on the combined modified maximum likelihood(CMML) and sequential reduction(SR) method(CMSR). By analyzing the advantages and disadvantages of the reliability assessment method of the series system, combined with the improved electric power torpedo’s characteristics of less actual sailing data of primary batteries and different test samples of each subsystem, this paper proposes a three-series reliability test scheme and assessment method using the CMSR assessment model. This method can obtain a higher confidence level of assessment results for torpedo working reliability in sea trials and has better practicability.