Abstract
Natural frequency in tube bundles is the basis of vibration analysis in the heat exchanger. The calculation methods of the natural frequency are summarized in four type of tube bundles: straight tube, U-bend tube, finned tube and tube-fin. The influence of structure, temperature and fluid on the natural frequency are analyzed. Some anti-vibration measures are also put forward. The research direction of vibration analysis in tube bundles of heat exchanger in the future has good prospects.
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