Stability of the second order difference equation with time-varying parameter

Toshiyuki Tanaka, Chikara Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper deals with the stability of the second order difference equation possessing periodic parameter, which characterizes discrete periodic system. Discrete periodic system corresponding to Mathieu equation is expressed as second order difference equation with small parameter ε in the time-varying term. This parameter ε plays an important role in stability. For the fundamental equation without damping, stability boundary curves are analytically obtained with respect to parameters in the equation by using McLachlan's method, which is based on Floquet's theory and perturbation method. The boundary curves are computed by pursuing periodic solutions on the boundaries and letting secular term zero. The boundary curves are expressed as the power series of ε. When periodic parameter consists of even function of Fourier series, stability boundary curves are obtained. For the fundamental equation with damping, stability criterion is shown in the neighbor of important resonant points. This criterion is obtained by computing points on the boundary curves.

Original languageEnglish
Title of host publicationDynamics and Vibration of Time-Varying Systems and Structures
EditorsMo Shahinpoor, H.S. Tzou
PublisherPubl by ASME
Number of pages9
ISBN (Print)0791811735
Publication statusPublished - 1993 Dec 1
Event14th Biennial Conference on Mechanical Vibration and Noise - Albuquerque, NM, USA
Duration: 1993 Sept 191993 Sept 22

Publication series

NameAmerican Society of Mechanical Engineers, Design Engineering Division (Publication) DE


Other14th Biennial Conference on Mechanical Vibration and Noise
CityAlbuquerque, NM, USA

ASJC Scopus subject areas

  • Engineering(all)


Dive into the research topics of 'Stability of the second order difference equation with time-varying parameter'. Together they form a unique fingerprint.

Cite this