Store Unsteady Aerodynamic Loads Measurement Technology

ABSTRACT: M4 Engineering proposes to develop a method for accurately measuring unsteady aerodynamic loads on stores. Work to date has included characterization of the significant challenges currently impeding dynamic load measurement. M4 Engineering has demonstrated a prototype unsteady load measurement system that determined applied loads based on measurements taken from the end of a flexible sting. The proposed effort will develop this technology further including wind tunnel demonstration. The proposed development will create an excellent compliment to modern test and analysis methods. BENEFIT: The proposed development has the potential to dramatically improve the analysis and certification process for stores. Demand for this capability will be found in the government and at major airframe manufacturers. Phase II development will result in a commercial CTS components that satisfy this demand. Combination of unsteady loads data collected with these developments with advanced trajectory simulation capabilities will allow engineers to accurately and rapidly predict store separation trajectories in order to avoid unpleasant"surprises"during development, testing, and service. Initial implementation will focus on store load measurement, however the capability created will apply to other systems subjected to unsteady loading environments. Satisfying this existing demand will provide a tremendous commercial potential for this technology.