Rainflow Counting Method - MATLAB Command Script

This MATLAB-implemented command script applies the rainflow counting method to extract cyclic loading patterns from structural components for subsequent analysis and optimization. The algorithm processes load-time history data by identifying closed hysteresis loops, effectively decomposing complex variable amplitude loading into equivalent constant amplitude cycles. Key features include configurable input parameters for statistical cycle classification and user-defined threshold filtering to eliminate insignificant cycles based on amplitude ranges. The implementation employs matrix operations and loop detection logic to automate data processing, significantly enhancing both efficiency (through vectorized computations) and accuracy (via precise cycle counting mechanics). Additionally, the script generates output matrices containing cycle amplitudes, mean values, and occurrence counts compatible with fatigue life prediction models. This tool serves as a fundamental resource for structural design optimization, providing reliable cycle data for damage accumulation calculations and fatigue assessment.