Modeling of fighter jet cockpit noise Free

Military fighter jet cockpit noise may pose a hearing loss risk to pilots and can disrupt communications. The current study is an attempt to model the noise levels in the cockpit of F-35 aircraft as a function of aircraft operation parameters. Levels are based on a complex interplay of parameters such as airspeed, altitude, dynamic pressure, and the flow rate of the in-cockpit environmental control system. Full population of an operational envelope from point-by-point measurements would require an excessive number of flights. In the current work, in-cockpit noise levels were measured during sampled flight conditions. Correlations between levels and flight parameters were investigated. A preliminary parameter-based model is presented, and the ability to predict levels within the operational flight envelope is addressed. [Work supported by USAFRL through ORISE.]