Particle Impact Damping in Two Dimensions

Riaz Ahmad Bhatti; Yan Rong Wang; Zhou Cheng Wang

doi:10.4028/www.scientific.net/KEM.413-414.415

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On Optimal Sensor Placement Criterion for Structural Health Monitoring with Representative Least Squares Method
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Monitoring Vertical Loads on the Bearings of the High Coast Suspension Bridge
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The Design of Piezoelectric Transducer for Structural Health Monitoring Using Longitudinal Vibration Modes
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Particle Impact Damping in Two Dimensions
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Smart Rotating Machines for Condition Monitoring
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GA-SVR Based Bearing Condition Degradation Prediction
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Harvesting Vibration Energy for Structural Health Monitoring in Aircraft
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Condition Monitoring of Textiles Using Optical Techniques
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 413-414Particle Impact Damping in Two Dimensions

Particle Impact Damping in Two Dimensions

Abstract:

Particle impact damping (PID) is a technique of achieving high structural damping with small metallic particles embedded within a cavity that is attached to vibrating structure. This is a highly non-linear damping mechanism in which energy dissipation is primarily related to friction and impact phenomena. In this work a simple yet detailed analytical model is presented to study PID in two dimensions under transient vibrations. Normal as well as oblique impacts are considered. The effect of cavity size and acceleration amplitude on PID is studied and the results are supported by experiments. Fairly good agreement is found between the theory and the experiment.