KRUE101: ASD yana nufin "Acceleration Spectral Density" kuma PSD yana nufin "Power Spectral Density" Idan kuna amfani da bayanan jijjiga ASD da PSD iri ɗaya ne. An yi amfani da PSD a cikin duniyar sauti shekaru da yawa da suka wuce kuma an kai shi cikin duniyar girgiza. Raka'a na ASD da PSD sune G^2rms/Hz.
Menene bambanci tsakanin ASD da PSD?
(Lura cewa ba tare da la'akari da sanannen ra'ayi ba, G2/Hz shine ainihin haɓakar spectral density (ASD), ba ƙarfin siginar ƙarfi ba (PSD).
...
| Bazuwar Input Spec | |
|---|---|
| 3.01 dB/Okt | |
| 600.00 Hz | 0.0500 G2/Hz |
| -4.02 dB/Oktoba | |
Menene matakin PSD?
A cikin nazarin jijjiga, PSD na tsaye ne da Ƙarfin Ƙarfin Ƙarfi na sigina. … PSD tana wakiltar rarraba sigina akan nau'in mitoci kamar yadda bakan gizo ke wakiltar rarraba haske akan bakan na tsawon raƙuman ruwa (ko launuka).
Menene nazarin PSD?
Binciken ƙarfin-spectral-density (PSD) nau'in bincike ne na mita-yanki wanda aka ƙaddamar da tsari zuwa nau'in nau'in nau'in nau'in nau'in nau'in nau'i na jituwa don samun rabo mai yiwuwa don matakan mayar da martani.
Menene ASD a cikin rawar jiki?
Ma'auni na haɓakar haɓakar haɓaka (ASD) ita ce hanyar da aka saba don tantance girgizawar bazuwar. Tushen yana nufin haɓaka murabba'i (Grms) shine tushen murabba'in yanki a ƙarƙashin lanƙwan ASD a cikin yankin mita.
Menene girgizar Grms?
Grms: Ana amfani da Grms don ayyana gabaɗayan kuzari ko haɓaka matakin girgiza bazuwar. Grms (tushen-ma'ana-square) ana ƙididdige shi ta hanyar ɗaukar tushen murabba'in yanki a ƙarƙashin madaidaicin PSD. … Mai kula da jijjiga ko mai nazarin bakan zai yi lissafinsa don kowane ƙunƙuntaccen bandeji.
Me yasa nake girgiza ba da gangan?
Bazuwar rawar jiki shima ya fi haƙiƙa fiye da gwajin jijjiga na sinusoidal saboda bazuwar lokaci guda ya haɗa da duk mitocin tilastawa kuma "lokaci guda yana farantawa duk resonances na samfuranmu." ¹ Ƙarƙashin gwajin sinusoidal, ana iya samun mitar sauti ta musamman ga ɓangaren na'urar da ke ƙarƙashin gwaji kuma a…
Ta yaya zan canza FFT zuwa PSD?
Don samun PSD daga ƙimar FFT ɗinku, yi murabba'i kowace ƙimar FFT kuma raba ta sau biyu tazarar mitar akan axis ɗin ku. Idan kuna son duba fitarwar an daidaita daidai, yankin da ke ƙarƙashin PSD yakamata ya zama daidai da bambance-bambancen siginar asali.
Menene makircin PSD?
Aiki na gani mai ƙarfi (PSD) yana nuna ƙarfin bambance-bambancen (makamashi) azaman aikin mitar. A wasu kalmomi, yana nuna a waɗanne mitoci ne bambance-bambancen ke da ƙarfi kuma a waɗanne mitoci ke da rauni.
Me yasa ake auna girgiza a G?
Za mu iya ƙididdige ƙididdiga na yau da kullun don ƙarfi da ƙaura, gami da ƙimar mitar. Koyaya kamar yadda tsarin gwajin mu ke auna hanzari (G) kuma yana buƙatar ƙarin ƙididdiga don samar da ko dai daidaitaccen ƙarfi (N) ko ƙaura na yau da kullun (mm), yana da mafi ma'ana don amfani da G.
Menene bincike na vibration zai iya gano?
Ƙididdigar girgizawar yanki ta mitar ta yi fice wajen gano ƙirar girgizar da ba ta dace ba. … Ta hanyar nazarin mitar bakan, za a iya gano bambancin karon lokaci-lokaci kuma ta haka ne gano gaban kurakuran da ke ɗauke da su.
Menene bambanci tsakanin PSD da FFT?
FFTs suna da kyau wajen nazarin rawar jiki lokacin da akwai iyakataccen adadin manyan abubuwan mitar; amma ikon spectral densities (PSD) ana amfani dashi don siffanta siginar girgiza bazuwar.
Me ake amfani da bincike na gani?
Binciken Spectral yana ba da hanyar auna ƙarfin abubuwan lokaci-lokaci (sinusoidal) na sigina a mitoci daban-daban. Canji na Fourier yana ɗaukar aikin shigarwa a cikin lokaci ko sarari kuma ya canza shi zuwa aiki mai rikitarwa a cikin mita wanda ke ba da girma da lokaci na aikin shigarwa.
Ta yaya kuke lissafin jijjiga RMS?
RMS (Root Mean Square) ana ƙididdige rawar girgiza ta hanyar auna girman girman kololuwa da ninka ta . 707 don samun ƙimar RMS (Root Mean Square).
Ta yaya bazuwar jijjiga ke aiki?
Gwajin jijjiga bazuwar wanda ya ƙunshi kuzarin jijjiga a kowane mitoci akan kewayon kewayon. Abubuwan mitar girgiza waɗanda ke haɗa siginar shigarwa don gwajin bazuwar suna haɗuwa a cikin girma da lokaci don ƙirƙirar yanayin motsin lokaci wanda ya bayyana akan oscilloscope azaman amo bazuwar.
Ta yaya kuke lissafin girgiza matakin G?
Jimlar 36.77 G
Jimlar ƙimar yankin yayi daidai da saurin murabba'in murabba'in 36.77 G2. Tushen murabba'in wannan ƙimar yana ba da ƙimar RMS gabaɗaya na 6.064 G RMS. Raka'o'in hanzari su ne tushen murabba'in rukunan haɓakar haɓaka. Don naúrar yawa na (m/s2)2/Hz, sakamakon zai sami naúrar m/s2.