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Journal ArticleDOI

Perturbation solutions of the Carson–Cambi equation

Barbara Epstein, +1 more
- 01 Feb 1977 - 
- Vol. 303, Iss: 2, pp 177-188
TLDR
In this paper, the Carson-Cambi equation (1+e cos t)y + py = 0, referred to as the second-order differential equation with a periodic coefficient associated with the second derivative was examined.
Abstract
The periodic differential equation (1+e cos t)y + py = 0, hereby termed the Carson–Cambi equation, is the simplest second-order differential equation having a periodic coefficient associated with the second derivative. Provided |e|<1, which is the case we examine, then the differential equation is a Hill's equation and thus possesses regions of stability and instability in the p–e plane. Ordinary perturbation theory is employed to obtain the stable (periodic) solutions to e3. Two-timing theory is employed to obtain solutions for values of k near the critical points k = ±12, ±32, ±52. Three-timing is employed to extend the solution near k = ±12. The solutions of the Carson–Cambi equation are compared with the solutions of the corresponding Mathieu equation.

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Citations
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Journal ArticleDOI

Stability analysis of systems with periodic coefficients: An approximate approach

TL;DR: In this paper, an approximate method of stability analysis for second order linear systems with periodic coefficients is presented, where the periodic functions are approximated during the first period of motion by a constant, a linear or a quadratic function of time such that the resulting approximate equations have known closed form solutions.
Journal ArticleDOI

A Quantitative Stability Analysis of the Solutions to the Carson-Cambi Equation

TL;DR: In this paper, a quantitative stability analysis of the Carson-Cambi equation is carried through, using a new, effective approach, and the results are compared with a recent perturbation analysis, and show that this should not be used for e 0.4.
Book ChapterDOI

Sensitivity Analysis for Dynamic Stability Problems

TL;DR: In this paper, the authors present a set of six notes written to be fairly independent without extensive mutual reference and the page limit for each note is set to 10. This page limit means that extensive examples are not included.
Journal ArticleDOI

The random capacitance equation

R Rosner, +1 more
- 01 Aug 1978 - 
TL;DR: In this article, the initial value problem for a circuit containing a small random capacitance is studied and the method of first-order smoothing is employed to determine the mean solution.
Journal ArticleDOI

Numerical Simulation of Stability and Responses of Dynamic Systems under Parametric Excitation

TL;DR: In this paper , the authors proposed a numerical simulation method to simultaneously construct stability diagrams and predict the responses of multiple degree-of-freedom (DOF) dynamic systems under arbitrary parametric loadings.
References
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Journal ArticleDOI

Notes on the Theory of Modulation

TL;DR: In this article, the authors proved that the frequency modulation system using a spacing or compensating wave is inferior to the amplitude variation system both as to the width of the frequency band occupied and as to distortion of signal wave form.
Journal ArticleDOI

On the Oscillations of a Circuit Having a Periodically Varying Capacitance

TL;DR: In this article, a theoretical study of a dissipationless oscillatory circuit having a periodically varying capacity predicted the existence of several interesting types of oscillations, which are generally of a complicated nonsinusoidal character, but assumed a substantially sinusoidal form for certain adjustments of the circuit.
Journal ArticleDOI

On the stability of solutions of a second-order differential equation

TL;DR: In this article, the authors dealt with the Hill differential equation d2y/dx2 + − 2 y = 0.2 y and obtained stability criteria in terms of r and a (at least in principle).