Data-driven method for dimension reduction of nonlinear randomly vibrating systems
Sign Up to like & getrecommendations! Published in 2021 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-021-06601-1
Abstract: Data-driven identification of nonlinear differential equations turns out to be an inefficient, and sometimes even impossible, for high-dimensional randomly vibrating systems. The mathematical formulism of stochastic averaging, moreover, is restricted by the difficulty of determining… read more here.
Keywords: dimension reduction; vibrating systems; stochastic averaging; randomly vibrating ... See more keywords
Simultaneous assignment of resonances and antiresonances in vibrating systems through inverse dynamic structural modification
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115552
Abstract: Abstract This paper proposes a method for the concurrent assignment of resonance and antiresonance frequencies in cross-receptances of undamped vibrating systems, by exploiting inverse dynamic structural modification. The technique also allows partially assigning the mode… read more here.
Keywords: vibrating systems; structural modification; assignment; inverse dynamic ... See more keywords
Non-linear vibrating systems excited by a nonideal energy source with a large slope characteristic
Sign Up to like & getrecommendations! Published in 2017 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2017.04.026
Abstract: Abstract This paper revisits the problem of an unbalanced motor attached to a fixed frame by means of a nonlinear spring and a linear damper. The excitation provided by the motor is, in general, nonideal,… read more here.
Keywords: vibrating systems; slope; system; non linear ... See more keywords