MENENTUKAN KARAKTERISTIK OSILASI NONLINEAR DENGAN METODE RUNGE-KUTTA MENGGUNAKAN PEMROGRAMAN BORLAND DELPHI

Abstract

ABSTRACT

In line with the increasing complexity of application of science and technology in human life, the more complicated the settlement also counting physics problems. For simple problems may be solved by analytic approach, but analytic approach requires high skills in manipulating mathematical. Nonlinear Oscillations van der Pol oscillator in particular is one that is quite complicated problem of physics that can be solved by analytic approach.In order to determine the solution and characteristics of the van der Pol oscillator are required a numerical method. One of numerical method that can be use to determine the solution and characteristics of the van der Pol oscillator is Runge-Kutta 4th order method. Calculation for this method would be easier to make an computer program. This application can be created using Borland Delphi 7.0. In this application program that becomes the input is time, deviation, phase and attenuation constants. From the results of the application program in the form of the data and the graph shows that for small damping constant value (= 0.1) system vibration van der Pol oscillator approach simple harmonic oscillation. Key Words: Numerical Methods, Computational Physics, Nonlinear Oscillations, Delphi Programming.