Qhov sib txawv tseem ceeb ntawm kev ua kom tsis muaj zog thiab tsis muaj kev vibration yog tias nyob rau hauv damped oscillations, lub amplitude ntawm nthwv dej generated yuav txo qis, whereas, nyob rau hauv undamped oscillations, lub amplitude ntawm cov nthwv dej generated nyhav kom tsis txhob hloov thiab tas mus li. lub sij hawm.
Lub sij hawm vibration yog hais txog qhov tshwm sim ntawm cov khoom siv uas oscillations tshwm sim los ntawm qhov sib npaug. Lo lus no los ntawm lo lus Latin txhais tau tias "coj lossis brandishing." Cov oscillations tuaj yeem ua ntu zus lossis random. Periodic oscillations xa mus rau kev txav ntawm lub pendulum, thaum random oscillations xa mus rau kev txav ntawm lub log tsheb ntawm txoj kev pob zeb. Qee qhov kev vibrations xav tau, piv txwv li. tuning diav rawg, reed nyob rau hauv ib tug woodwind instrument los yog harmonica, ib lub xov tooj ntawm tes, thiab lwm yam. Txawm li cas los xij, muaj qee lub sijhawm tsis zoo ib yam, nrog rau kev siv lub zog thiab tsim lub suab tsis xav tau.
Muaj peb hom kev vibrations: dawb vibration, yuam kev vibration, thiab damped vibration. Ib qho kev vibration dawb tshwm sim yog tias lub tshuab hluav taws xob tau teeb tsa hauv cov lus tsa suab nrog cov tswv yim pib, uas tso cai rau lub kaw lus kom vibrate dawb. Kev quab yuam quab yuam yog lub sijhawm sib txawv ntawm kev cuam tshuam uas siv rau cov tshuab tshuab. Ntawm qhov tod tes, damped vibration yog qhov tshwm sim uas lub zog ntawm lub kaw lus maj mam dissipates los ntawm kev sib txhuam thiab lwm yam kev tiv thaiv.
Dab tsi yog Damped Vibration?
Damped vibration yog hom oscillation uas tshwm sim thaum lub zog ntawm lub vibrating system maj mam dissipated los ntawm kev sib txhuam thiab lwm yam kev tiv thaiv. Nyob rau lub sijhawm no, peb hais tias kev vibration yog damped. Ntxiv mus, nyob rau hauv qhov teeb meem no, cov kev vibrations maj mam txo los yog hloov lub zaus los yog siv, ua rau lub kaw lus nyob rau hauv nws equilibrium txoj hauj lwm. Ib qho piv txwv ntawm hom kev vibration no yog lub tsheb thauj mus los los ntawm kev poob siab absorber.
Daim duab 01: Lub caij nplooj ntoos hlav loj uas yog Critically Damped
Feem ntau, qhov damped ntuj zaus tsawg dua li qhov tsis muaj qhov tsis zoo. Txawm li cas los xij, rau feem ntau ntawm kev xyaum, qhov damping piv yog me me, uas ua rau qhov sib txawv ntawm damped thiab undamped natural zaus negligible.
Dab tsi yog kev vibration?
Undamped vibration yog ib hom oscillation uas nws amplitude tseem nyob tas li lub sijhawm. Nws yog qhov opposite ntawm damped vibration.
Daim duab 02: Lub Caij Nplooj Ntoos Hlav uas tsis muaj kev puas tsuaj
Feem ntau, damped ntuj zaus yog tus nqi me dua li qhov tsis txaus ntseeg vim qee qhov xwm txheej pom tau tias qhov sib piv me me, uas ua rau nws muaj qhov sib txawv tsis txaus ntseeg.
Qhov txawv ntawm Damped thiab Undamped Vibration yog dab tsi?
Damped vibration yog hom oscillation uas tshwm sim thaum lub zog ntawm lub vibrating system maj mam dissipated los ntawm kev sib txhuam thiab lwm yam kev tiv thaiv. Undamped vibration yog ib hom oscillation uas nws amplitude tseem nyob tas li nrog lub sijhawm. Qhov sib txawv tseem ceeb ntawm damped thiab undamped vibration yog tias qhov amplitude ntawm cov nthwv dej uas tsim nyob rau hauv damped oscillations yuav maj mam txo qis, whereas lub amplitude ntawm nthwv dej uas tsim nyob rau hauv undamped oscillations yuav tsis hloov thiab tas li nyob rau lub sij hawm.
Nyob hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov tsis sib haum xeeb thiab tsis muaj kev vibration nyob rau hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Damped vs Undamped Vibration
Dawb thiab tsis muaj kev vibrations yog hom oscillations. Qhov sib txawv tseem ceeb ntawm damped thiab undamped kev vibration yog tias nyob rau hauv damped oscillations, lub amplitude ntawm cov nthwv dej uas tsim yuav txo qis zuj zus, whereas, nyob rau hauv undamped oscillations, lub amplitude ntawm cov nthwv dej feem ntau yuav tsis hloov thiab tas mus li lub sij hawm.
