Quiet Spike Build-Up Ground Vibration Testing Approach

Spivey, Natalie; Herrera, Claudia Y.; Truax, Roger; Pak, Chan-gi; Freund, Donald

doi:10.2514/6.2007-1775

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Introduction 11 Motivation Of the Research Problem1

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Cited by 7 publications

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“…The purpose of GVT is to obtain the modal parameters and characteristics of the aircraft, such as natural frequencies, damping ratios and mode shapes, which are used to validate and update the fnite element model of the aircraft in order to make reliable futter predictions for fight tests [1]. The GVT test requires certain extensive preparations and usually is conducted few weeks before the frst fight, which puts enormous pressure on the success of this phase of the program [1][2][3]. Vibration tests of full aircraft prototypes are complex and challenging in comparison to vibration tests on smaller structural components.…”

Section: Introduction 11 Motivation Of the Research Problemmentioning

confidence: 99%

Experimental and Computational Investigation of a Highly Flexible Airframe Taxiing Over an Uneven Runway for Aircraft Vibration Testing

Al-Bess¹

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Ground Vibration Test (GVT) is an important phase of the development of new aircraft prototypes, or the structural modifcation of an existing ones, to experimentally determine the modal parameters such as fundamental frequencies and mode shapes of aircraft prototypes. These modal parameters are used to validate and update the fnite 3.7 Flexible multibody dynamics model of the aircraft in MSC.Adams . .

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