In this work a kalman filter is designed for estimating the level of a cylindrical tank and thus removing noise from the level sensor. The system is modeled as a first order system. The kalman filter is designed and is used to verify its effectiveness in level estimation. This work describes the Kalman Filter which is the most important algorithm for state estimation and noise cancellation in a...

Risk-based design of marine pressure hulls require computationally efficient and precise models predicting collapse pressures ring stiffened cylindrical shells as a function realistic geometrical imperfections. However, the empirical interframe commonly implemented in codes do not explicitly depend on imperfections, existing analytical are only valid for axisymmetrically imperfect shells. The g...

In this article, the data assembled regarding the mixing of Newtonian and shear thinning fluids by screw impellers in a cylindrical tank is disclosed. The data summarizing some information on the efficiency of such impellers are obtained via 3D calculations of velocities and viscous dissipation in the whole vessel volume. The data presented herein may be useful for those who want to outline the...

Optimal design of laminated composite stiffened panels of symmetric and balanced layup with different number of T-shape stiffeners is investigated and presented. The stiffened panels are simply supported and subjected to uniform biaxial compressive load. In the optimization for the maximum buckling load without weight penalty, the panel skin and the stiffened laminate stacking sequence, thickne...

In this paper, the data assembled concerning the agitation of a Newtonian fluid in a cylindrical vessel is disclosed. The stirred vessel is not provided with baffles and has a flat-bottom. The data presents some information on the characteristics of two impellers: a six-blade Rushton turbine and a six-blade paddle impeller. The flow patterns generated by both impellers are depicted and compared...

In real life we often come into contact with nonlinear systems. In this paper we will concentrate on two methods dealing with the problem of nonlinear system control. As the first method we will use the self-tuning regulator and as the second multiple-model control. Both of the methods mentioned above will be verified by computer simulation. As a controlled system a simple cylindrical tank with...

An analysis of the strati®cation decay in thermally strati®ed vertical cylindrical cool storage systems is presented using a one dimensional conjugate heat conduction model. The degree of thermal strati®cation depends upon the length to diameter ratio, wall thickness to length ratio, the thermo-physical properties of the material of the storage tank, the type and thickness of the insulation and...

Liquid hydrogen (LH2) takes up less storage volume than gas but requires cryogenic vessels. State-of-the-art applications for passenger vehicles consist of double-wall cylindrical tanks that hold a hydrogen storage mass of up to 10 kg. The preferred shell material of the tanks is stainless steel, since it is very resistant against hydrogen brittleness and shows negligible hydrogen permeation. T...

We consider the problem of the active reduction of structural vibrations of a plane wing induced by the sloshing of large masses of fuel inside partly full tank. This study focuses on an experimental device composed of an aluminum rectangular plate equipped with piezoelectric patches at the clamped end and with a cylindrical tip-tank, more or less filled with liquid at the opposite free end. Th...