Topic
Added mass
About: Added mass is a research topic. Over the lifetime, 2849 publications have been published within this topic receiving 47899 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, a method for solving a finite inverse eigenvalue problem arising in the determination of added distributed mass in nanoresonator sensors by measurements of the first N natural frequencies of the free axial vibration under clamped end conditions is presented.
16 citations
TL;DR: In this paper, the relationship between the disk rotation and the fluid rotation has been introduced in the simulation model to consider the effects of the surrounding flow and the transmission within rotating and stationary frame.
Abstract: Predicting natural frequencies of rotating disklike structures submerged in water is of paramount importance in the field of hydraulic machinery, since the dynamic response of disks presents similarities to the dynamic response of pump-turbine runners. Well-known computational methods, such as structural-acoustical fluid–structure interaction (FSI) simulations, are perfectly capable to predict the added mass effects of standing submerged disks. However, the capability of these simulations to predict the effect of rotation in the natural frequencies of submerged disks has not been investigated. To obtain adequate results, the relationship between the disk rotation and the fluid rotation has to be introduced in the simulation model to consider the effects of the surrounding flow and the transmission within rotating and stationary frame. This procedure is explained and discussed in this technical brief comparing analytical, numerical, and experimental results.
16 citations
16 citations
TL;DR: In this article, two methods for assessing the inertial properties of bodies with complex geometries are proposed for the purpose of simulation of the offshore deployment of industrial modules in very deep water.
16 citations
01 Jan 1981
TL;DR: In this paper, a matrix formulation for the added mass of a vibrating ship is developed, which is completely independent of any predefined vibratory mode shape; it is directly superimposable with the mass matrix in the equations of motion of the discrete ship structural model.
Abstract: A matrix formulation for the added mass of a vibrating ship is developed. The Green's function, or source distribution, method is used. The matrix is completely independent of any predefined vibratory mode shape; it is directly superimposable with the mass matrix in the equations of motion of the discrete ship structural model. The accuracy of the matrix formulation developed is evaluated by comparison with exact solutions available for the circular cylinder and the sphere. The added-mass matrix for a 249-nodal-point model of a Series 60 hull surface is generated by the proposed method. This matrix is used in a quantitative evaluation of the Lewis J-factor method for predicting addedmass distributions associated with one-dimensional vertical vibration of real ships.
16 citations