Pipeline vibration reduction design method based on viscous damping and particle damping coupling
A particle damping and viscous damping technology, applied in the field of pipeline vibration reduction, can solve the problems of complex frequency components, poor high-frequency vibration damping effect, complex pipelines, etc., achieving good effect, good vibration reduction and noise reduction, and simple and efficient detection. Effect
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[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0035] The invention discloses a pipeline damping design method based on the coupling of viscous damping and particle damping. Vibration damping is performed by arranging a viscous damping damper 2 and a particle damping damper 3 on the outer periphery of a pipeline 1, including the following steps:
[0036] S1. Conduct a vibration test on the pipeline 1 to be optimized in the running state, extract the vibration frequency characteristics of the pipeline 1 to be optimized, and establish a discrete element-finite element coupling analysis model of the pipeline 1 to be optimized.
[0037] The vibration test is carried out when the pipeline 1 is working. The test system includes an acceleration sensor, a vibration data collector and a data analysis platform. The measurement frequency range of the acceleration sensor is 0.5Hz-12000Hz. The data analy...
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Abstract
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