Experimental and computational studies of the response of a radioactive waste ampoule shell model to an external harmonic action allowing for heat release

The analysis of elastic dynamic properties of a spacecraft for transporting radioactive waste at elevated operating temperatures is of great importance. This paper describes experimental and computational studies of the dynamic elastic properties of a radioactive waste ampoule shell model in the case when the radioactive waste is used as the primary source of energy. An experimental setup and a technique for the analysis of dynamic elastic properties of both «cold» and «hot» ampoules are developed. The frequency response of the ampoule model at various temperatures is experimentally studied. The amplitude-frequency characteristics of the ampoule model with internal heat release in the temperature range 293...503 K are first determined. The finite element method is used to determine frequencies and mode shapes of the model. The calculated and experimental results are compared. The results can be used in the experimental development of spacecraft elements for transporting radioactive waste and other special purpose vehicles.

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