Experimental Study on the Thermal/Vibration Characteristics for a Plate Structure Made of High-Temperature-Resistant Nickel-Based Stainless Steel

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A thermal/vibration test system was established in this paper, using which the key vibration characteristic parameters of a plate structure made of high-temperature-resistant nickel-based stainless steel in a thermal vibration coupled environment up to 1100°C (e.g., the modal frequency and modal vibration shape) were experimentally obtained. A self-developed extension configuration of a high-temperature-resistant ceramic pole was used to transfer the vibration signals of the structure to a non-high temperature zone, and the acceleration sensors were applied to identify the vibration signals. The test data were analyzed using a time-frequency joint analysis technique. The research results can provide an important basis for the dynamic performance analysis and safety design of structure under high-temperature thermal vibration conditions for hypersonic flight vehicles.

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277-283

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July 2016

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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