contributor author | K. Eisinger | |
contributor author | H. C. Merchant | |
date accessioned | 2017-05-08T23:06:16Z | |
date available | 2017-05-08T23:06:16Z | |
date copyright | March, 1979 | |
date issued | 1979 | |
identifier issn | 0021-8936 | |
identifier other | JAMCAV-26112#191_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/91867 | |
description abstract | Classical (primary) parametric amplification is reviewed. This phenomenon is known to occur for a parametric variation with a frequency of twice that of a harmonic input in the neighborhood of a system’s characteristic frequency. A higher-order phenomenon that is identified as secondary parametric amplification (or attenuation), is discussed in detail and solutions related to Mathieu’s equation are presented. Its occurrence is characterized by a frequency of the parametric variation that is of the order of 2α/n (where n = 1, 2, 3, [[ellipsis]], and α is the undamped characteristic frequency of the system) and a harmonic input of a much lower frequency. The amplification (or attenuation) resulting from the secondary parametric amplification phenomenon is manifested in an overmodulated response that must be low-pass filtered to recover the desired low frequency response. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Amplitude Modulation of a Forced System by Parameter Variation | |
type | Journal Paper | |
journal volume | 46 | |
journal issue | 1 | |
journal title | Journal of Applied Mechanics | |
identifier doi | 10.1115/1.3424495 | |
journal fristpage | 191 | |
journal lastpage | 196 | |
identifier eissn | 1528-9036 | |
keywords | Equations AND Frequency response | |
tree | Journal of Applied Mechanics:;1979:;volume( 046 ):;issue: 001 | |
contenttype | Fulltext | |