Study on the Distributed and Non-Stationary Dynamic Load Being Transformed into Several Equivalent Centralized Loads for Aerocraft
Missiles always undergo non-stationary and continuously distributed load. However, only some centralized loads can be adopted in the ground for their vibration experiments. In this paper, the theoretical analysis and numerical simulation computations programs are established for the distributed and non-stationary airdynamic load being translated into several equivalent centralized loads for high-speed missile. The researches showed that, under the equivalent rule of structural modal responses, the average responses error in both domains time and frequency is within 1.5dB, so it is possible to provide a feasible method for the vibration test on the ground for missile structures.
Paul P. Lin and Chunliang Zhang
X. T. Chang and Y. J. Yan, "Study on the Distributed and Non-Stationary Dynamic Load Being Transformed into Several Equivalent Centralized Loads for Aerocraft", Applied Mechanics and Materials, Vols. 105-107, pp. 965-968, 2012