Mitigating the effect of impact loading on a vehicle using an essentially nonlinear absorber

Wang, D; Lee, YS; McFarland, DM; Bergman, LA; Vakakis, AF

dc.contributor.author	Wang, D	en
dc.contributor.author	Lee, YS	en
dc.contributor.author	McFarland, DM	en
dc.contributor.author	Bergman, LA	en
dc.contributor.author	Vakakis, AF	en
dc.date.accessioned	2014-03-01T01:31:06Z
dc.date.available	2014-03-01T01:31:06Z
dc.date.issued	2009	en
dc.identifier.issn	0042-3114	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19746
dc.subject	Peak inertial force	en
dc.subject	Shock mitigation	en
dc.subject	Targeted energy transfer	en
dc.subject	Vibro-impact absorber	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Impact loadings	en
dc.subject.other	Impulsive acceleration	en
dc.subject.other	Impulsive excitations	en
dc.subject.other	Impulsive forces	en
dc.subject.other	Induced vibrations	en
dc.subject.other	Inertial forces	en
dc.subject.other	Input energy	en
dc.subject.other	Maximum values	en
dc.subject.other	Non-Linearity	en
dc.subject.other	Nonlinear vibration absorbers	en
dc.subject.other	Numerical simulation	en
dc.subject.other	Optimal design	en
dc.subject.other	Passenger compartment	en
dc.subject.other	Peak inertial force	en
dc.subject.other	Peak response	en
dc.subject.other	Peak values	en
dc.subject.other	Shock mitigation	en
dc.subject.other	Targeted energy transfer	en
dc.subject.other	Transient loading	en
dc.subject.other	Vibro-impact	en
dc.subject.other	Vibro-impact absorber	en
dc.subject.other	Computer simulation	en
dc.subject.other	Energy transfer	en
dc.title	Mitigating the effect of impact loading on a vehicle using an essentially nonlinear absorber	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/00423110802531083	en
heal.identifier.secondary	http://dx.doi.org/10.1080/00423110802531083	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	The aim of this study is to investigate the ability of an essentially nonlinear vibration absorber to mitigate the large accelerations transmitted to a passenger compartment of a vehicle which is subjected to shock-type transient loading at the chassis. For such problems, the induced vibration typically attains its maximum value shortly after the application of the loading; thus, it may be impossible to dissipate a major portion of the input energy prior to the occurrence of the peak response. Here, a class of absorbers possessing a form of discontinuous essential stiffness nonlinearity is employed to achieve the desired mitigation. In this paper, we apply a single vibro-impact (VI) absorber to the chassis and examine whether the resulting energy transfer mechanism is an effective way to reduce the peak value of the inertial force measured at the passenger compartment. The influence of the absorber parameters is first studied based on a practical impulsive force, and the optimal design of the absorber is then obtained. Next, an asymmetric clearance arrangement of the absorber is suggested to facilitate the mitigation. Finally, an impulsive acceleration excitation is applied to the system to examine the robustness and efficacy of the optimised absorber. Results of numerical simulations demonstrate that a properly designed VI absorber can significantly decrease the maximum inertial force at the passenger compartment, generated by external impulsive excitations.	en
heal.publisher	TAYLOR & FRANCIS LTD	en
heal.journalName	Vehicle System Dynamics	en
dc.identifier.doi	10.1080/00423110802531083	en
dc.identifier.isi	ISI:000273960500001	en
dc.identifier.volume	47	en
dc.identifier.issue	10	en
dc.identifier.spage	1183	en
dc.identifier.epage	1204	en