Prediction of slamming pressure considering fluid-structure interaction. Part II: Derivation of empirical formulations

Truong, Dac Dung; Jang, Beom-Seon; Ju, Han-Baek; Han, Sang Woong

doi:10.1016/j.marstruc.2019.102700

Cited by 13 publications

(1 citation statement)

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“…Some other measurement cases with different drop heights and different locations from detailed numerical simulation data are compared with Chuang's results and Truong's further studies. [36][37][38] Three pressure gauges (P1;P3) and deflection gauges (D1;D3) listed in Tables 5 and 6 are considered in this verification study, which the detailed explanations of the experimental setup can be found in Chuang and Truong. The results of maximum pressure and deflection for all test cases (Tables 5 and 6) shown that the numerical model is reasonable.…”

Section: Validation Of Simulation Modelmentioning

confidence: 99%

Water entry dynamic analysis of lightweight sandwich plates with lattice core: A semi-analytical approach and comparative study

Wang¹,

Lin

2022

Proceedings of the Institution of Mechanical Engineers, Part M:

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This is the third part of water entry hydro-elastic analysis of clamped sandwich plates with lattice core (CSPLC). In the first and second parts analysis, the engineering prediction model is built to estimate the dynamic responses of CSPLC. To discuss the responses of CSPLC in more detail, the objective of the present work is to investigate the hydro-elastic responses of rectangular, clamped sandwich plates with lattice core (CSPLC) subjected to water entry via combined a novel semi-analytical approach and multi-physical numerical simulation. In the theoretical approach, the hydro-elastic characteristics are quantified by coupling a hydrodynamic water entry model with a first shear displacement model of elasticity for CSPLC. The fluid-structure interaction (FSI) effects of water entry are taken into account by dividing the total impact pressure into the rigid water entry pressure and the interacting pressure. To capture the precise responses of CSPLC, both the global displacement field and the local displacement field are considered in the analytical model. The dynamic governing equations are derived from the energy variation principle and solved by employing the modal approach. Furthermore, the 3D FSI finite element simulation is carried out to get the detailed hydro-elastic characteristics of CSPLC. This engineering semi-analytical model is found to yield accurate results for dynamic responses and offers significant savings in computational cost compared to the FSI simulations. As a comparative study, for a same geometrical stiffened panel, the FSI impact pressure and structural deflection are also given respectively.

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Section: Validation Of Simulation Modelmentioning

confidence: 99%