Study on Mine Ventilation Resistance Coefficient Inversion Based on Genetic Algorithm

The frictional resistance coefficient of ventilation a roadway in coal mine is very important technical parameter the design and renovation ventilation. Calculations based on empirical formulae field tests to calculate have limitations. An inversion method by using few representative data air flows node pressures proposed this study. mathematical model developed principle least squares. measured pressure calculated deviation along with flow are considered while defining objective function, which also includes pressure, flow, range constraints. problem was converted nonlinear optimisation through development model. A genetic algorithm (GA) adopted solve problem. GA improved enhance global local search abilities for