Optimized Environmental Test Sequences to Ensure the Sustainability and Reliability of Marine Weapons

Abstract

Abstract:In recent years, there has been an increase in the types of marine weapons used in response to diverse hostile threats. However, because marine weapons are only tested under a single set of environmental conditions, failures due to different environmental stresses have been difficult to detect. Hence, this study proposes an environmental test sequence for multi-environment testing. The environmental test sequences for electrical units described in the international standard IEC 60068-1, and for military supply described in the United States national standard MIL-STD-810G were investigated to propose guidelines for the appropriate test sequences. This study demonstrated the need for tests in multiple environments by investigating marine weapon accidents, and evaluated which environmental stresses and test items have the largest impacts on marine weapons using a two-phase quality function deployment (QFD) analysis of operational scenarios, environmental stresses, and environmental test items. Integer programming was used to determine the most influential test items and the shortest environmental test time, allowing us to propose optimal test procedures. Based on our analysis, we developed optimal environmental test sequences that could be selected by a test designer.

An optimal environmental test sequence based on severity for electrical units in automobiles

“…They used quality function deployment to calculate the effect of an aircraft's electronic devices in various operating profiles; following this, environmental tests were determined [10]. Integer programming was used to optimize the environmental test sequences for marine weapons based on MIL-STD-810G [11]. Furthermore, Kim specified an environmental test sequence using the genetic algorithm in a leg, according to the weights applied to standards related to environmental and automobile test sequences [12].…”