On parametric excitation
β Scribed by N. Minorsky
- Publisher
- Elsevier Science
- Year
- 1945
- Tongue
- English
- Weight
- 987 KB
- Volume
- 240
- Category
- Article
- ISSN
- 0016-0032
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π SIMILAR VOLUMES
A parametric amplifier circuit is described. The nonlinearity involved is an abrupt one and a method of analysis of "relaxation oscillations" is preferred to techniques assuming quasi-linearity. This leads to a physical understanding of the cycle of oscillations as well as quantitative relationships
As a wheel moves along a discretely supported track, it can experience parametric excitation due to the varying dynamic stiffness of the track. In order to study this, an equivalent time-varying model is developed for the track, according to the space-varying receptance in a sleeper bay. Using this