Selection Methodology for Wedge Lock Strips in Avionics Equipment

This paper addresses the limitations of traditional wedge lock strip selection methods for Integrated Modular Avionics (IMA) equipment, which rely on subjective experience and lack systematic quantitative analysis. A systematic selection methodology integrating multi-dimensional engineering elements is proposed. This approach establishes a closed-loop decision process based on:Physical constraint identification, Material performance adaptation, Environmental load spectrum mapping, and Dynamic safety verification under vibration/shock conditions.By precisely balancing locking reliability and lightweight requirements, it resolves vibration-induced loosening failures and redundant weight issues. Validation on typical avionics equipment demonstrates that this method:Enhances vibration-resistant locking reliability; Optimizes structural weight;Meets stringent airworthiness requirements; Provides a universal selection framework for other modular electronic devices requiring anti-vibration fastening.