Seismic bearing rau cov tsev ua haujlwm siab

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Roj hmab cais cov kabmob feem ntau yog tsim los ntawm cov kabmob roj hmab thiab lub lauj kaub cov kabmob.Nws muaj hluav taws kub tsis kam, huab cua tsis kam thiab durability.Nws tuaj yeem tiv taus rov qab shear yam tsis tau txo cov viscosity, thiab tuaj yeem ua kom ruaj khov damping quab yuam.Lub viscous shear quab yuam generated ntawm lub phaj tsis kam embedded nyob rau hauv cov khoom viscous thiab viscous khoom siv los nqus thiab dissipate lub zog vibration, thaum tus choj qauv yog txhawb los ntawm cov kabmob phaj ntawm cov kabmob puag phaj.

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Cov khoom sib cais ntawm cov roj hmab sib cais bearings tuaj yeem muab faib ua ob pawg: cais bearings (isolators) thiab dampers.Cov qub tuaj yeem txhawb nqa qhov hnyav tuag thiab thauj khoom ntawm lub tsev, thaum lub sijhawm tom kawg tuaj yeem txwv tsis pub loj deformation thaum muaj av qeeg, thiab ua lub luag haujlwm hauv kev ceev nrawm nrawm tom qab av qeeg.

Lub shear yoj tsim tawm thaum muaj av qeeg kuj yog ib qho tseem ceeb uas ua rau tus choj rub tawm tom qab.Nyob rau hauv txoj kev thiab choj engineering kev lag luam ntawm peb lub teb chaws, thaum lub ntsug rigidity ntawm cov roj hmab cais bearing yog khaws cia ib yam, cov kab rov tav bearing muaj peev xwm nkhaus yog linear, thiab qhov sib npaug damping piv ntawm hysteresis nkhaus yog hais txog 2%;

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Rau cov roj hmab bearings, thaum txoj kab rov tav hloov mus nce, qhov sib npaug ntawm qhov sib npaug ntawm qhov hysteresis nkhaus yuav txo qis rau qee qhov, thiab ib feem ntawm lub zog tsim los ntawm av qeeg kuj yuav hloov mus rau hauv lub zog kub ntawm cov roj hmab bearings;Rau cov roj hmab bearings, qhov sib npaug damping piv yuav zoo li qub, thiab qhov sib npaug ntawm cov roj hmab bearings yog inversely proportional rau txoj kab rov tav txav.

Siv ib txoj kev thiab choj txoj haujlwm uas tau hais los saum toj no ua piv txwv.Nyob rau hauv txoj kev tsim kho, kev ntxhov siab tshwm sim los ntawm kev ncua ntawm tus choj tag nrho yog txiav txim siab tag nrho.Thaum siv, cov khoom siv hlau txuas tau raug teeb tsa los muab cov kev txhawb nqa sab nraud rau tag nrho txoj kev thiab choj txoj haujlwm, thiab tib lub sijhawm, qhov kev tiv thaiv tuaj yeem nce ntxiv.Rau lub hauv paus no, qhov tsim tawm ntawm cov roj hmab rho tawm bearings yog 271mm.