An approach for implementing acceleration compensation in the stress wave force measurement technique was developed by subtracting the inertial force due to acceleration of the model-balance structure from the drag obtained from the SWFM technique. The effective mass of the model-balance structure was approximately constant for a range of calibration impulse magnitudes. However, the acceleration depended on the magnitude. In addition, an integration window was set by a logarithmic decrement technique to account for the impulsive nature of the excitation. Drag obtained with a sphere-cone model mounted in a shock tunnel compared favorably with modified Newtonian values.
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