Show simple item record

dc.contributor.advisorWood, E. Roberts
dc.contributor.advisorGordis, Joshua H.
dc.contributor.authorHarris, John H., III
dc.dateMarch 1996
dc.date.accessioned2012-08-09T19:23:05Z
dc.date.available2012-08-09T19:23:05Z
dc.date.issued1996-03
dc.identifier.urihttp://hdl.handle.net/10945/8845
dc.descriptionApproved for public release, distribution is unlimiteden_US
dc.description.abstractEfforts to establish a helicopter research program in structural dynamics at NPS were greatly enhanced when the U. S. Army donated two OH-6A light observation helicopters. One of the helicopters is reserved for ground vibration testing and dynamics research. Vibration measurements are extremely important in predicting and understanding an aircraft's dynamic behavior and durability. A comparison of a helicopters natural frequencies and those frequencies transmitted to the airframe through the rotor system can alert the designer/evaluator to possible dynamic problems. This thesis establishes a baseline vibration test program on the OH-6A helicopter for future testing and comparison to analytic models. The goal of the research is to establish natural frequencies (eigenvalues) principal mode shapes (eigenvectors), and damping characteristics of the OH-6A and to compare these values to test and analytical data obtained from the McDonnell Douglas Helicopter Company.en_US
dc.description.urihttp://archive.org/details/preliminaryvibra00harr
dc.format.extent64 p.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titlePreliminary vibration survey of a suspended full-scale OH-6A helicopter from 0 to 45 HZen_US
dc.typeThesisen_US
dc.contributor.secondreaderDanielson, Donald A.
dc.contributor.corporateNaval Postgraduate School
dc.contributor.departmentDepartment of Aeronautics and Astronautics
dc.subject.authorHelicopteren_US
dc.subject.authorVibration analysisen_US
dc.subject.authorVibration testingen_US
dc.subject.authorNatural frequenciesen_US
dc.subject.authorMode shapesen_US
dc.subject.authorStructural dampingen_US
dc.subject.authorVibration forced responseen_US
dc.subject.authorStructural dynamicsen_US
dc.description.serviceLieutenant, United States Navyen_US
etd.thesisdegree.nameM.S. in Aeronautical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineAeronautical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record