Abstract
Recent experimental work suggests that picking-stick vibrations are a dominant source of noise from fly-shuttle-type textile looms. A picking stick is modeled as a beam with internal damping. Impacts from the incoming shuttle are modeled by assuming the shuttle to be a rigid body with mass M and initial velocity V0 just prior to impact. The energy transfer during impact to higher-frequency vibrations of the beam is treated approximately by ignoring wave reflections from the far end of the beam, and a correspondingly simple expression is derived for the net energy transferred within any frequency band during a single impact. This energy is subsequently assumed to be distributed among the vibrational modes within the corresponding frequency band but to be relatively quickly dissipated by transmission out of the beam to other parts of the beam and by internal damping. However, during the time the energy is present, the beam is vibrating and radiating sound. The resulting sound radiation is computed based on a modification of the theory of sound generation by transversely oscillating slender bodies.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.