Impact workrate and wear of a loosely supported beam subject to harmonic excitation
(2002) 5th International Symposium on FluidStructure Interaction, Aeroelasticity, FlowInduced Vibration and Noise In Proceedings of the 5th International Symposium on FluidStructure Interactions, Aeroelasticity, FlowInduced Vibration and Noise, pts A and B p.10031010 Abstract
 Impact workrate of a weakly damped beam with elastic twosided amplitude constraints subject to harmonic excitation is calculated. Impact workrate is the rate of energy dissipation to the impacting surfaces. The beam is clamped at one end and constrained by unilateral contact sites near the other end. This system was an object of a vibroimpact experiment which was analyzed in our earlier paper (Knudsen and Massih 2000). Detailed nonlinear dynamic behavior of this system is evaluated in our companion paper (Knudsen and Massih 2002b). Computations show that the workrate for asymmetric orbits is significantly higher than for symmetric orbits at or near the same frequency. For the vibroimpacting beam, under conditions that exhibit a... (More)
 Impact workrate of a weakly damped beam with elastic twosided amplitude constraints subject to harmonic excitation is calculated. Impact workrate is the rate of energy dissipation to the impacting surfaces. The beam is clamped at one end and constrained by unilateral contact sites near the other end. This system was an object of a vibroimpact experiment which was analyzed in our earlier paper (Knudsen and Massih 2000). Detailed nonlinear dynamic behavior of this system is evaluated in our companion paper (Knudsen and Massih 2002b). Computations show that the workrate for asymmetric orbits is significantly higher than for symmetric orbits at or near the same frequency. For the vibroimpacting beam, under conditions that exhibit a stable attractor, calculation of workrate allows us to predict the "lifetime" of the contacting beam due to frettingwear damage by extending the stable branch and using the local gap between contacting surfaces as a control parameter. That is, upon computation of the impact workrate, the frettingwear process time is calculated through backsubstitution of the workrate and gapwidth in a given wear law. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/record/1406706
 author
 Knudsen, Jakob ^{LU} and Massih, AR
 organization
 publishing date
 2002
 type
 Chapter in Book/Report/Conference proceeding
 publication status
 published
 subject
 in
 Proceedings of the 5th International Symposium on FluidStructure Interactions, Aeroelasticity, FlowInduced Vibration and Noise, pts A and B
 pages
 1003  1010
 publisher
 American Society Of Mechanical Engineers (ASME)
 conference name
 5th International Symposium on FluidStructure Interaction, Aeroelasticity, FlowInduced Vibration and Noise
 external identifiers

 WOS:000222851800108
 ISBN
 0791836592
 language
 English
 LU publication?
 yes
 id
 5f95383f99c44b16b65c13f1818976d7 (old id 1406706)
 date added to LUP
 20090604 12:00:06
 date last changed
 20160416 09:25:59
@misc{5f95383f99c44b16b65c13f1818976d7, abstract = {Impact workrate of a weakly damped beam with elastic twosided amplitude constraints subject to harmonic excitation is calculated. Impact workrate is the rate of energy dissipation to the impacting surfaces. The beam is clamped at one end and constrained by unilateral contact sites near the other end. This system was an object of a vibroimpact experiment which was analyzed in our earlier paper (Knudsen and Massih 2000). Detailed nonlinear dynamic behavior of this system is evaluated in our companion paper (Knudsen and Massih 2002b). Computations show that the workrate for asymmetric orbits is significantly higher than for symmetric orbits at or near the same frequency. For the vibroimpacting beam, under conditions that exhibit a stable attractor, calculation of workrate allows us to predict the "lifetime" of the contacting beam due to frettingwear damage by extending the stable branch and using the local gap between contacting surfaces as a control parameter. That is, upon computation of the impact workrate, the frettingwear process time is calculated through backsubstitution of the workrate and gapwidth in a given wear law.}, author = {Knudsen, Jakob and Massih, AR}, isbn = {0791836592}, language = {eng}, pages = {10031010}, publisher = {ARRAY(0x842ce00)}, series = {Proceedings of the 5th International Symposium on FluidStructure Interactions, Aeroelasticity, FlowInduced Vibration and Noise, pts A and B}, title = {Impact workrate and wear of a loosely supported beam subject to harmonic excitation}, year = {2002}, }