Mean-Square Response of Simple Mechanical Systems to Nonstationary Random Excitation

Autor:	J. R. Maurer, R. L. Barnoski
Rok vydání:	1969
Předmět:	Physics Frequency response Mechanical Engineering Acoustics Mathematical analysis Linear system White noise Degrees of freedom (mechanics) Condensed Matter Physics Amplitude modulation Mechanical system Mechanics of Materials Random vibration Excitation
Zdroj:	Journal of Applied Mechanics. 36:221-227
ISSN:	1528-9036 0021-8936
DOI:	10.1115/1.3564611
Popis:	This paper concerns the mean-square response of a single-degree-of-freedom system to amplitude modulated random noise. The formulation is developed in terms of the frequency-response function of the system and generalized spectra of the nonstationary random excitation. Both the unit step and rectangular step functions are used for the amplitude modulation, and both white noise and noise with an exponentially decaying harmonic correlation function are considered. The time-varying mean-square response is shown not to exceed its stationary value for white noise. For correlated noise, however, it is shown that the system mean-square response may exceed its stationary value.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::305160bbe39055a4969118bce4eb3771 https://doi.org/10.1115/1.3564611 Zobrazit plný text záznamu