TY - GEN
T1 - Experimental forced response analysis of two-degree-of-freedom piecewise-linear systems with a gap
AU - Saito, Akira
AU - Umemoto, Junta
AU - Noguchi, Kohei
AU - Tien, Meng Hsuan
AU - D'Souza, Kiran
N1 - Funding Information:
This project was supported in part by Japan Society for the Promotion of Science (JSPS), Grant-in-Aid for Scientific Research(C), grant number 20K11855. The support of JSPS is gratefully acknowledged. This work was also partially supported by the National Science Foundation under grant no. 1902408, program manager Dr Robert Landers. Any opinions, findings, and conclusions or recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of the National Science Foundation.
PY - 2020
Y1 - 2020
N2 - In this paper, an experimental forced response analysis for a two degree of freedom piecewise-linear oscillator is discussed. First, a mathematical model of the piecewise linear oscillator is presented. Second, the experimental setup developed for the forced response study is presented. The experimental setup is capable of investigating a two degree of freedom piecewise linear oscillator model. The piecewise linearity is achieved by attaching mechanical stops between two masses that move along common shafts. Forced response tests have been conducted, and the results are presented. Discussion of characteristics of the oscillators are provided based on frequency response, spectrogram, time histories, phase portraits, and Poincaré sections. Period doubling bifurcation has been observed when the excitation frequency changes from a frequency with multiple contacts between the masses to a frequency with single contact between the masses occurs
AB - In this paper, an experimental forced response analysis for a two degree of freedom piecewise-linear oscillator is discussed. First, a mathematical model of the piecewise linear oscillator is presented. Second, the experimental setup developed for the forced response study is presented. The experimental setup is capable of investigating a two degree of freedom piecewise linear oscillator model. The piecewise linearity is achieved by attaching mechanical stops between two masses that move along common shafts. Forced response tests have been conducted, and the results are presented. Discussion of characteristics of the oscillators are provided based on frequency response, spectrogram, time histories, phase portraits, and Poincaré sections. Period doubling bifurcation has been observed when the excitation frequency changes from a frequency with multiple contacts between the masses to a frequency with single contact between the masses occurs
UR - http://www.scopus.com/inward/record.url?scp=85096177077&partnerID=8YFLogxK
U2 - 10.1115/DETC2020-22289
DO - 10.1115/DETC2020-22289
M3 - Conference contribution
AN - SCOPUS:85096177077
T3 - Proceedings of the ASME Design Engineering Technical Conference
BT - 32nd Conference on Mechanical Vibration and Noise (VIB)
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC-CIE 2020
Y2 - 17 August 2020 through 19 August 2020
ER -