Response of continuous system with stochastically varying surface roughness to moving load

Christian A. Schenk, Lawrence A. Bergman

Research output: Contribution to journalArticlepeer-review

Abstract

The problem of calculating the second moment characteristics of the response of a general class of nonconservative linear distributed parameter systems with stochastically varying surface roughness, excited by a moving concentrated load, is investigated. The surface roughness is modeled as spatial Gaussian, stationary colored noise. The resulting initial/boundary value problem is transformed by eigenfunction expansion into the modal state space, where the second moment characteristics of the response are determined by direct integration using a Runge-Kutta method.

Original languageEnglish (US)
Pages (from-to)759-768
Number of pages10
JournalJournal of Engineering Mechanics
Volume129
Issue number7
DOIs
StatePublished - Jul 2003

Keywords

  • Continuous beams
  • Dynamic loads
  • Stochastic processes
  • Surface roughness

ASJC Scopus subject areas

  • Mechanical Engineering

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