Topic
Added mass
About: Added mass is a research topic. Over the lifetime, 2849 publications have been published within this topic receiving 47899 citations.
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TL;DR: In this article, a modified integral equation is obtained by the linear superposition of the classical Green equation and its normal derivative with respect to the field point, which removes the effects of all irregular frequencies in boundary-integral equations governing the interaction of regular waves with floating bodies of general geometry.
Abstract: The paper presents a method that removes the effects of all irregular frequencies in boundary-integral equations governing the interaction of regular waves with floating bodies of general geometry. A modified integral equation is obtained by the linear superposition of the classical Green equation and its normal derivative with respect to the field point.
71 citations
TL;DR: In this paper, a biomechanically inspired model of the human response to lateral bridge motion is presented and explored, which captures the key features of pedestrian lateral balance and the resulting forces on the structure.
71 citations
TL;DR: In this article, the bending-torsional flutter characteristics of a wing containing an arbitrarily placed mass under a follower force are presented and the governing equations and boundary conditions are determined via Hamilton's variational principle.
70 citations
TL;DR: In this article, a time-domain calculation method is described for elastic responses to arbitrary time-dependent external loads, on the basis of a general differential equation of second order including the convolution integral related to memory effects in the hydrodynamic forces.
Abstract: A time-domain calculation method is described for elastic responses to arbitrary time-dependent external loads, on the basis of a general differential equation of second order including the convolution integral related to memory effects in the hydrodynamic forces. The time-dependent elastic deflection of a structure is represented by a superposition of mathematical modal functions, and a Galerkin scheme is employed to obtain a linear system of simultaneous differential equations for the amplitude of modal functions assumed. Special care is paid to numerical accuracy in computing the memory-effect function and the added mass at infinite frequency. The validity of the numerical results was confirmed through a comparison with time histories of the vertical deflection measured in an impulsive weight-drop test conducted at the Ship Research Institute and a comparison with existing numerical results for the same problem. To check the necessity of memory-effect terms, computations using a constant value for the hydrodynamic damping coefficient were also performed, and practical measures for reducing the computation time are discussed.
70 citations
TL;DR: Forced harmonic heave motions of horizontally submerged and perforated rectangular plates are studied experimentally and numerically at both a deep and shallow submergence in this paper, where the steady-state vertical forces are expressed in terms of added mass and damping coefficients.
70 citations