scholarly journals UNSYMMETRIC OSCILLATIONS OF ANISOTROPIC PLATEHAVING AN ADDITIONAL MASS

2021 ◽  
Vol 17 (1) ◽  
pp. 48-54
Author(s):  
Elena Koreneva
Keyword(s):  
Circular Plate ◽  
Anisotropic Material ◽  
Analytical Approach ◽  
Bessel Functions ◽  
Homogeneous Equation ◽  
Basic Solution ◽  
Natural Vibrations ◽  
Additional Mass ◽  
Additional Point

The problem of unsymmetric oscillations of circular plate made from anisotropic material is examined. The plate under consideration has an additional point mass attached offthe center or a system of additional masses. Also the oscillations of anisotropic circular plate with a point support placed offthe center are studied. The exact analytical approach is used for the decision of the above-mentioned problems; the method of compensating loads is applied. For this aim the basic and the compensating solutions are received. The basic solution satisfiesto the resolving differentialequation of the problem under study. The compensating solution satisfiesto the corresponding homogeneous equation and this solution amounting to the basic one also satisfiesto the boundary conditions. The Nielsen’s equation is used for the receiving of the exact solutions expressed in terms of Bessel functions. The equation for determination of frequencies of natural vibrations is obtained.

Approximated Fundamental Frequency for Thin Circular Plates Clamped or Pinned at the Edge

2007 ◽  
Author(s):  
George Weiss
Keyword(s):  
Circular Plate ◽  
Fundamental Frequency ◽  
Bessel Functions ◽  
Unit Area ◽  
Continuous System ◽  
Modified Bessel Functions ◽  
Circular Plates ◽  
Numerical Parameter ◽  
Elliptical Plate ◽  
Distributed Load

Calculating the exact solution to the differential equations that describe the motion of a circular plate clamped or pinned at the edge, is laborious. The calculations include the Bessel functions and modified Bessel functions. In this paper, we present a brief method for calculating with approximation, the fundamental frequency of a circular plate clamped or pinned at the edge. We’ll use the Dunkerley’s estimate to determine the fundamental frequency of the plates. A plate is a continuous system and will assume it is loaded with a uniform distributed load, including the weight of the plate itself. Considering the mass per unit area of the plate, and substituting it in Dunkerley’s equation rearranged, we obtain a numerical parameter K02, related to the fundamental frequency of the plate, which has to be evaluated for each particular case. In this paper, have been evaluated the values of K02 for thin circular plates clamped or pinned at edge. An elliptical plate clamped at edge is also presented for several ratios of the semi–axes, one of which is identical with a circular plate.

scholarly journals PERENCANAAN BAHAN BAKU DAN HASIL PRODUKSI MENGGUNAKAN METODE LINIER PROGRAMMING SIMPLEK

2017 ◽  
Vol 12 (2) ◽  
Author(s):  
Monika Handayani ◽  
Eka Kusuma Dewi
Keyword(s):  
Linear Programming ◽  
Production Planning ◽  
Simplex Method ◽  
Raw Materials ◽  
Raw Material ◽  
Planning System ◽  
Testing System ◽  
Basic Solution ◽  
Linear Programming Method

<p>CV. Baja Utama Landasan Ulin is a business entity that manufactures various products using the basic ingredients of iron. In the management of raw materials for the production of common regulatory process raw materials into sections for further processing. This setting is often done manually without doing careful planning, so that at the end of each production process there are many remaining pieces of the raw materials that should be used in production. In addition to the determination of the production is necessary to reference how the product should be made for each type of existing products. This is often an important factor that pushed for the optimization of production planning in determining the number of products for each type of product and raw material consumption.Linear Programming is one of the methods used in production planning to regulate the use of raw materials is limited. Simplex method is part of the linear programming method that can be used in the production planning system implementation. Simplex method identifies an initial basic solution and then move systematically to other basic solution that has the potential to improve the value of the objective function.The calculation result of production planning using the simplex method can be used as a reference in the decision making production planning. By building an application using the simplex method can assist in the calculation of production peencanaan more efficiently and effectively. Accuracy testing system constructed show significant results with great value reached 94% level of accuracy.<br />Keywords: simplex, production planning, the maximum gain, linear programming</p>

scholarly journals Determination of Energy and Protein Requirements of Sheep in Indonesia using a Meta-analytical Approach

2017 ◽  
Vol 40 (2) ◽  
pp. 118-127 ◽  
Author(s):  
A. Jayanegara ◽  
M. Ridla ◽  
D.A. Astuti ◽  
K.G. Wiryawan ◽  
E.B. Laconi ◽  
...  
Keyword(s):  
Analytical Approach ◽  
Protein Requirements

ANALYTICAL APPROACH FOR THE DETERMINATION OF MOLECULAR WEIGHTS OF n-ALKANES IN CRUDE OIL DISTILLATION CUTS

1997 ◽  
Vol 15 (3-4) ◽  
pp. 273-282
Author(s):  
Marco Antonio G. Teixeira ◽  
Artur L. Scofield ◽  
Marcos Vinicius R. Cabral
Keyword(s):  
Crude Oil ◽  
Analytical Approach ◽  
Molecular Weights ◽  
Crude Oil Distillation

Determination of Tryptophan Using Nanocomposite-Based Sensor

2013 ◽  
Vol 829 ◽  
pp. 675-680 ◽  
Author(s):  
Akbar Islamnezhad ◽  
Esmaeil Farzaneh Jobaneh
Keyword(s):  
Catalytic Effect ◽  
Basic Solution ◽  
Carbon Paste ◽  
Experimental Conditions ◽  
Chemically Modified ◽  
Solvent Free Condition ◽  
Analytical Response ◽  
Paste Electrode ◽  
Effect Of The Composition

In this study, the nanoComposite Silica Perchloric Acid Poly (2-Methyl Aniline) (NSPPMA) was synthesized under the solvent-free condition and used as modifier in preparation of chemically modified electrode (CME). The effect of the composition of carbon paste electrode on its voltammograms were evaluated in basic solution with 5.0 × 105 M Trp. It was found that addition of NSPPMA to the carbon paste would generate the peak current of Trp because of its catalytic effect on redox process. The best analytical response was obtained at pH 12.0. The anodic peak currents were proportional to Trp concentrations in the range of 2.5 × 109 5.0 × 10-4 M under the optimized experimental conditions. The detection limit was 1.7 × 10-10 M. The correlation of the peak currents against v1/2 (v is the scan rate) is linear. The proposed method was applied to the determination of Trp in pharmaceuticals formulations successfully.

An analytical approach of heat transfer modelling with thermal stresses in circular plate by means of Gaussian heat source and stress function

2021 ◽  
Author(s):  
Sangita Pimpare ◽  
Chandrashekhar Shalik Sutar ◽  
Kamini Chaudhari
Keyword(s):  
Boundary Condition ◽  
Heat Source ◽  
Circular Plate ◽  
Thermal Stresses ◽  
Research Work ◽  
Homogeneous Boundary Condition ◽  
Flux Boundary Condition ◽  
Differential Transform ◽  
The Mathematical Model

Abstract In the proposed research work we have used the Gaussian circular heat source. This heat source is applied with the heat flux boundary condition along the thickness of a circular plate with a nite radius. The research work also deals with the formulation of unsteady-state heat conduction problems along with homogeneous initial and non-homogeneous boundary condition around the temperature distribution in the circular plate. The mathematical model of thermoelasticity with the determination of thermal stresses and displacement has been studied in the present work. The new analytical method, Reduced Differential Transform has been used to obtain the solution. The numerical results are shown graphically with the help of mathematical software SCILAB and results are carried out for the material copper.

scholarly journals PIDANA PENGAWASAN TERHADAP ANAK YANG BERHADAPAN DENGAN HUKUM DALAM SISTEM PEMIDANAAN DI INDONESIA

2013 ◽  
Vol 2 (3) ◽  
Author(s):  
I Putu Suwarsa
Keyword(s):  
Criminal Law ◽  
Analytical Approach ◽  
Criminal Policy ◽  
Legal Protection ◽  
Comparative Approach ◽  
Legal Concept ◽  
Normative Approach ◽  
Positive Law ◽  
The Law

ABSTRACTThis research was conducted with the normative approach legislation. Factualapproach, analytical approach to the legal concept of a comparative approach in thecriminal judicial oversight of Children in Conflict with the Law in the criminal sistem inIndonesia.In formulating criminal law criminal policy oversight of Children in Conflict withthe Law in the guidance sistem of positive law in Indonesia, consists of 3 major topics:First, the substance of Children in Conflict with the Law into law in Indonesia, Second,Determination of sanctions / penalties against Children in Conflict with the Law inIndonesia's criminal law policy, Third, criminal oversight of Children in Conflict with theLaw and its relevance to the theory of punishment in modern criminal law in Indonesia.Criminal oversight of Children in Conflict with the Law as the integrative goals ofpunishment in accordance with the ideas and correctional sistem discussed 3 subjectsnamely: First, criminal oversight of anal naughty review of aspects of the integrativetheory of punishment, Second, Criminal oversight of Children in Conflict with the Lawreview of aspects of correctional sistem, Third, Criminal oversight of Children in Conflictwith the Law in terms of aspects of legal protection and benefit of the criminal lawrequirement for social welfare (children). And its application by all law enforcementcomponents and related institutions involved in handling cases of children in conflict withthe law in coaching children in prison.

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