Viscous Fluid Damper (VFD) vs Xauv-Up Device (LUD): Qhov txawv tseem ceeb
Hauv pej xeem engineering seismic tiv thaiv thiab kev co tswj, Viscous Fluid Dampers (VFD) thiab Xauv-Up Devices (LUD) yog qhov tseem ceeb ntawm cov khoom siv tsis zoo. Thaum sib koom hydraulic lub tog raj kheej puag, lawv sib txawv heev hauv cov qauv, thev naus laus zis, kev ua haujlwm, thiab ua raws li cov qauv thoob ntiaj teb. Cov lus qhia luv luv no muab piv rau lawv ua tiav, pab cov kws tshaj lij thiab cov kws tshaj lij ua cov kev xaiv paub, nrog SEO- cov ntsiab lus ua kom zoo rau kev pom zoo hauv Google thiab cov tshuab tshawb fawb loj.
1. Cov qauv sib txawv
VFD muaj ib qho yooj yim -chamber layout, nrog ib tug piston featuring uniform damping orifices, zoo tib yam viscous kua (xws li, silicone roj), thiab tsis muaj ntxiv trigger qhov chaw. Nws tsim tsom mus rau cov kua dej du. LUD, los ntawm qhov sib txawv, txais yuav ob lub-chamber qauv, nrog lub piston kev koom ua ke nrog lub kaw lus sib xyaw lossis rheopectic fluid chamber. Nws ntxiv qhov ntsuas qhov ntsuas qhov ntsuas thiab siab -siab- cov ntsaws ruaj ruaj, nrog lub tog raj kheej tuab kom tiv taus qhov cuam tshuam thaum xauv- qhov tseem ceeb hloov kho rau lub xeev hloov.
2. Kev sib txawv
VFD ua haujlwm ntawm cov kua throttling zog dissipation: piston zog thawb cov kua los ntawm damping orifices, generating ceev -dependent damping force (F=Cv^), converting kinetic zog rau hauv tshav kub (dissipation efficiency 40% -60%). Nws tsis muaj lub xeev hloov, nrog ruaj khov damping hla txhua qhov nrawm.
LUD siv ceev-tig hloov pauv: qis- nrawm (tsawg dua lossis sib npaug li 2 hli / s) tso cai rau cov dej ntws dawb rau thermal / creep deformation; Tshaj li ntawm qhov pib, li qub kaw los yog cov kua dej khov kho, ua tiav kev kaw ntom nti. Nws NW nyuam qhuav dissipates lub zog, tsom rau lub zog redistribution, nrog xauv quab yuam 10x + VFD lub damping quab yuam.
3. Kev ua haujlwm txawv
VFD lub hauv paus yog lub zog ua kom muaj zog, txo cov qauv kev hloov pauv / nrawm los ntawm av qeeg lossis cua. Nws haum rau cov tshuab ntab (cov txuas txuas txuas), siab - nce siab, thiab cov cuab yeej siv khoom lag luam, nrog kev saib xyuas qis (tsuas yog khij khi).
LUD's core yog passive locking thiab quab yuam hloov. Nws hloov mus rau me me ib txwm deformations tab sis locks tam sim ntawd hauv av qeeg, tig piers txav mus rau hauv qhov ruaj khov. Zoo tagnrho rau cov uas tsis yog -floating txuas hniav (nruam/tsuas yog kev txhawb nqa beams), yuav tsum tau kuaj xyuas kev ntseeg tau li niaj zaus.
4. Cov qauv sib txawv
VFD ua raws li ISO 22762, EN 15129, AASHTO LRFD, thiab TB/T 3561-2020, kuaj rau damping force-speed curves, hysteretic performance, thiab kub stability.
LUD ua raws EN 15129 (kev tsom xam xauv), AASHTO LRFD (STU cov tseev kom muaj), thiab TB/T 3561-2020, nrog rau kev ntsuas ntsuas qhov ntsuas ntsuas, lub sijhawm teb, thiab rov pib ua haujlwm.
Cov ntsiab lus
VFD muab qhov tseem ceeb ntawm lub zog dissipation nrog cov qauv yooj yim; LUD tsom rua kev ceev- ua rau lub xauv kom yuam kev rov faib dua. Xaiv VFD rau kev hloov pauv loj / lub zog xav tau; LUD rau ntsuas qhov deformation thiab seismic tsis kam. Ob qho tib si tseem ceeb heev rau kev nyab xeeb ntawm cov qauv, nrog rau cov luag haujlwm sib txawv hauv kev tsim vaj tsev niaj hnub nim no.
