We present a low-order method for predicting noise from a conventional landing gear of typical commercial airplanes. The method proposed is based on the concept of components, which is a widespread approach for predicting aerodynamically generated noise of airframe components. The method sums the contributions of the noise radiation from each component as taken in isolation. There is limited consideration of interference effects. However, the method proposed overcomes some drawbacks in the existing technical literature, namely a disagreement between experimental and predicted acoustic predictions. The method proposed includes the wheel bay cavity noise contribution. New radiation factors and empirical factors have been proposed using experimental data. Comparisons are shown for the landing gear of the Boeing 737, for a scaled nose landing gear of an Airbus A320, and a 6.3%-scale Boeing 777 main landing gear.
展开▼
