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When the cycle of excitation at any position of power flow Beams ltispanCurvedBeams,oakley norge, lournalo / theAcousticalSoclelyofAmerica, Vo1.53.1973,Abercrombie France, pp. I170-1183 No. of Zhang Xiaoming , etc.; in any position to tender periodic vibration of simply supported beam when the power flow : 5] Goyder, H. G. D. andWhite,alexa mulberry taske, R. G. : VibrationalPowerFlowfromMachineSintoBuilt-upStruCtures, Journalo / SoundandVibration, Vo1.68L980, Pp. 59-756] Zhang, X. M. andZhang, W. H. 1VibratlonalPowerFlowinaPeriodicallySupportedBcam, Proceedings. ,} BInternaHonMConferenceofAppliedMechanics, AppliedMechanics, P. R. China, 1989, PP. 606-6Ll a {Vibrational:: PowerFlowInAPeriodicallySupportedBeamExcitedatAnyPositionZhangXiaoraingZhangWeiheng (HuazhongUnirersitYofScienceandTechnology) AbstraetThevibrationalpowetflowinaspatia1lyperlodicsupportedbeamisfurther5tudled. Theinfluenceofexcltationlocationontransmittedandtravellingpowerflowisinvestigated. Fordlfferentpropagationbands, thetransmittedpowerflowcanbereducedtotheminimumbysuitab1Yadjustingtheexcitationposition. Nomatterwherethebeamisexcited, Powerflowtravellingalongthebeaminthepositlyeandnegatlyedirectionaresameandequa1onehalfOfthetransmittedpowerflow. Theeffectofstructuraldampingonpowerflowisalsostudied. Inthiseasetheperiodicbeamisexcitedatthemiddlepointofonebay. Thetransmlttedpowerflowiseffect; velycontrolledbythedampingneartheboundingfrequentiesoftheoddpropagationbands. ThetravellingpowerflowisefleetivelYdecreasedbydampinginthepropagationbands. 'keyword ~ ibeam, powerflow, exciatlon, structaraldamping ::={= with capsule : Naxi guide San c0sKLsinhKL-sinKLeoshKL - i face plant on a ,mac cosmetics wholesale, = sinhKLsinKL (coshKL-COSKX) - sinLCOShKLsinhKX + COSKLsinhKLsinKX ------- Lo set to open a set ■ ------- sinKLsinhKX - sinhKLsinKX2E1K0sinhKLsin which is the crossing number , L the span length, is the exciting point coordinates. 相关的主题文章： mbt shoes sale Jiaxing food packaging export volum alexa mulberry taske Inverter air conditioner defe Oakley juliet Cosmetic packaging terms prohibits |
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