Oscillation vs Simple Harmonic Motion
Oscillations thiab yooj yim harmonic motion yog ob lub sij hawm sib tham nyob rau hauv physics. Cov ntsiab lus ntawm oscillations thiab yooj yim harmonic motion yog dav siv nyob rau hauv cov teb xws li mechanics, dynamics, orbital motions, mechanical engineering, nthwv dej thiab vibrations thiab ntau yam hauj lwm. Nws yog ib qho tseem ceeb kom muaj kev nkag siab zoo hauv cov ntsiab lus no kom ua tau zoo hauv cov haujlwm no. Hauv tsab xov xwm no, peb yuav tham txog dab tsi oscillations thiab yooj yim harmonic motions yog, lub ntsiab lus ntawm oscillation thiab yooj yim harmonic motion, lawv cov kev siv, ib co piv txwv rau yooj yim harmonic motions thiab oscillations, lawv zoo sib xws, thiab thaum kawg qhov txawv ntawm oscillation thiab yooj yim harmonic. kev txav chaw.
Kev sib tw
Oscillations yog ib hom kev txav mus los. Ib qho oscillation feem ntau txhais tau tias yog ib qho kev hloov pauv ntawm lub sijhawm. Lub oscillation tuaj yeem tshwm sim dhau qhov nruab nrab qhov sib npaug lossis nruab nrab ntawm ob lub xeev. Lub pendulum yog ib qho piv txwv zoo rau kev ua haujlwm oscillatory. Cov oscillations feem ntau yog sinusoidal. Ib qho alternating tam sim no kuj yog ib qho piv txwv zoo rau oscillation. Nyob rau hauv qhov yooj yim pendulum, lub bob oscillates tshaj qhov nruab nrab equilibrium point. Nyob rau hauv ib qho alternating tam sim no, cov electrons oscillate nyob rau hauv lub kaw Circuit Court nyob rau hauv ib tug equilibrium point. Muaj peb hom oscillations. Thawj hom yog cov tsis-damped oscillations nyob rau hauv uas lub zog sab hauv ntawm lub oscillation tseem nyob tas li. Qhov thib ob hom oscillations yog damped oscillations. Nyob rau hauv cov ntaub ntawv ntawm damped oscillations, lub zog sab hauv ntawm oscillation txo lub sij hawm. Qhov thib peb yog qhov yuam kev oscillations. Nyob rau hauv yuam oscillations, ib tug quab yuam yog siv rau ntawm lub pendulum nyob rau hauv ib tug periodic variation rau lub pendulum.
Simple Harmonic Motion
Qhov yooj yim harmonic motion yog txhais raws li ib tug motion noj daim ntawv ntawm a=– (ω2) x qhov "a" yog acceleration thiab "x" yog qhov hloov chaw los ntawm qhov sib npaug. Lo lus ω yog qhov tsis tu ncua. Ib qho yooj yim harmonic motion yuav tsum muaj ib tug restoration quab yuam. Lub zog rov qab tuaj yeem yog lub caij nplooj ntoos hlav, lub zog nqus, lub zog sib nqus, lossis lub zog hluav taws xob. Ib qho yooj yim harmonic oscillation yuav tsis emit ib lub zog. Tag nrho cov tshuab hluav taws xob ntawm qhov system tau txuag. Yog hais tias kev txuag tsis siv, lub kaw lus yuav yog ib qho damped harmonic system. Muaj ntau yam tseem ceeb ntawm kev siv yooj yim harmonic oscillations. Lub moos pendulum yog ib qho zoo tshaj plaws yooj yim harmonic systems muaj. Nws tuaj yeem pom tau tias lub sijhawm oscillation tsis nyob ntawm qhov loj ntawm lub pendulum. Yog tias lwm yam xwm txheej xws li huab cua tsis kam cuam tshuam rau qhov kev txav, nws yuav ua rau nws ntub thiab yuav nres. Qhov xwm txheej ntawm lub neej tiag tiag yog ib txwm muaj kev cuam tshuam oscillation. Lub caij nplooj ntoos hlav loj zoo meej kuj yog ib qho piv txwv zoo rau qhov yooj yim harmonic oscillation. Lub zog tsim los ntawm elasticity ntawm lub caij nplooj ntoos hlav ua raws li lub zog rov qab los hauv qhov xwm txheej no. Txoj kev sib haum xeeb yooj yim kuj tuaj yeem ua raws li qhov projection ntawm lub voj voog ncig nrog qhov nrawm nrawm. Ntawm qhov sib npaug ntawm qhov sib npaug, lub zog kinetic ntawm lub cev ua qhov siab tshaj plaws, thiab thaum lub sijhawm tig, lub zog muaj peev xwm dhau los ua qhov siab tshaj plaws thiab lub zog kinetic dhau los ua xoom.
Qhov txawv ntawm Simple Harmonic Motion thiab Oscillation yog dab tsi?
• Kev sib haum xeeb yooj yim yog qhov tshwj xeeb ntawm oscillations.
• Ib qho yooj yim harmonic motion yog ua tau tsuas yog nyob rau hauv txoj kev xav, tab sis oscillations yog ua tau nyob rau hauv txhua qhov teeb meem.
• Tag nrho lub zog ntawm kev sib haum xeeb yooj yim yog qhov tsis tu ncua whereas tag nrho lub zog ntawm kev oscillation, feem ntau, yuav tsum tsis tas li.
