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| Distribution of added masses for structures vibrating in a still fluid field |
| SUN Xufeng |
| College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China |
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Abstract When a structure vibrates in a still fluid field, the distribution pattern of added masses can crucially affect its vibration character, especially for light and thin structures.Yet till now, few study has been done on the explicit distribution pattern of the added mass.Based on the three-dimensional boundary element method, a simple numerical method considering proper Dirichlet and Neumann conditions was proposed.The method can figure out the explicit distribution of the added mass for vibrating structures with arbitrary given mode in an incompressible single-phase still fluid field.Numerical examples show that the results of the method agree well with the theoretical solution and experimental values, so it can be well applied to the analysis of the added mass distribution for very complex structures vibrating in bounded or unbounded still fluid fields.
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Received: 20 February 2019
Published: 15 July 2020
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