Noise color influence on escape times in nonlinear oscillators-experimental and numerical results  

作　　者：Thomas Breunung Balakumar Balachandran 

机构地区：[1]Department of Mechanical Engineering,University of Maryland,College Park,MD 20742,United States

出　　处：《Theoretical & Applied Mechanics Letters》2023年第2期149-158,共10页力学快报（英文版）

基　　金：CMMI 1760366 and the as-sociated data science supplements;A preliminary report of this work has been presented and discussed at the ASME 2022 Inter-national Design Engineering Technical Conference&Computer and Information in Engineering conference(IDETC/CIE 2022)。

摘　　要：The interplay between noise and nonlinearites can lead to escape dynamics.Associated nonlinear phe-nomena have been observed in various applications ranging from climatology to biology and engineering.For reasons of computational ease,in most studies,Gaussian white noise is used.However,this noise model is not physical due to the associated infinite energy content.Here,the authors present extensive experimental investigations and numerical simulations conducted to examine the impact of noise color on escape times in nonlinear oscillators.With a careful parameterization of the numerical simulations,the authors are able to make quantitative comparisons with experimental results.Through the experi-ments and simulations,it is illustrated that the noise color can drastically influence escape times and escape probability.

关 键 词：Colored noise Non-Gaussian excitation EXPERIMENTS Escape times 

分 类 号：O241[理学—计算数学] TN752[理学—数学]