Pik Langwej . 
Insay 1999. haywe brij injinɛri ., Laminated rubber bearings . na dɛn de yuz bɔku say bitwin di supastakt ɛn di sabstrakchɔ fɔ di brij dɛn. Dɛn de ple wan impɔtant pat pan Transmitting vertikal lod dɛn ., Akɔmodeshɔn strɔkchɔral difɔmeshɔn . , ɛn Fɔ gi vaybrɛshɔn ayzolayshɔn ɛn damp ..
Frɔm wan mɛkanikal pɔynt, dis strɔkchɔral fɔm rili kɔnsistɛn wit . Floor Vibration Dampers ., Fleksibul rɔba pad dɛn . , ɛn Sabgrɛd damping pad dɛn . , we na tipik . Enjinering rubber vibration isolation Prodakt dɛn . . . Ɔl dɛn sistɛm ya de abop pan di . Difɔmeshɔn bihayvya ɛn ɛnaji dissipeshɔn kapabiliti fɔ rɔba matirial dɛn . ɔnda Kɔmprɛsiv ɛn shia lod kɔndishɔn dɛn ..
tipikli, di riinfɔs layers dɛn fɔ . Laminated rubber bearings . konsis fɔ . Bɔku tint stɛl plet ɔ stɛl waya mɛsh . . Ɔnda di kɔnstrakshɔn fɔ dɛn riinfɔs layers ya, di . Lateral bulging fɔ rɔba . na efektivli suprɛs, so dat i go impɔtant fɔ impɔtant di . Strɔng fɔ kɔmprɛsiv . ɛn Ovaal stiffness . di rɔba layers dɛn.
at di sem tɛm, pan ɔl we i de mek shɔ se i ay . Vɛtikal lod-bɛrin kapasiti . , i du Shia difɔmeshɔn kapabiliti . Ɔnda ɔrizɔntal displeysmɛnt kin stil apin. Dis kwaliti na ikwal krichɔl insay di dizayn fɔ . Sabgrɛd damping pad dɛn . ɛn Fleksibul rɔba pad dɛn ..
Di Kompresiv elastik modulus testin method . na wan pan di kɔr we dɛn de yuz fɔ evaluate di . Mekanikal Pɔfɔmɛnshɔn . ɔf Laminated rubber bearings . . wit di implimɛnt ɔf ɔpdet standad, ɔl tu di . Di we aw dɛn de kɔl di kɔlkyulɛshɔn . ɛn Di we aw dɛn de du di tɛst . gɛt chenj dɛn we kɔrɛkt.
Tru ekspirimɛnt risach, dis stɔdi sistamaticƆly analyse di . Di men tin dɛn we de afɛkt di we aw dɛn de du di tɛst kɔrɛkt wan . ɛn dɛn digri fɔ inflɔɛns, we de gi wan sɔlid . Teknik besis fɔ brij injinɛri ɛn vaybreshɔn kɔntrol injinɛri ..
1. Ovaviu fɔ di kɔmpreshɔn ɛlastik mɔdyul tɛst mɛtɔd .
1.1 Besik Kɔnsɛpt .
insay 1981, Lindley Pb na di . prɔpɔz wan tiori mɔdel fɔ kɔlkul di . Vɛtikal stiffnɛs fɔ rɔba bia . , bays pan di asɔmpshɔn fɔ . Klose to inkompressibl elastik bihevior of rubber materials . . Dis tiori dɔn de frɔm da tɛm de we dɛn dɔn yuz am bɔku bɔku wan insay injinɛri prɛktis.
Ɔnda Vɛtikal kɔmprɛsiv lod dɛn . , Rɔba matirial dɛn nɔ de sho se na jɔs . Tiknes-dayrɛkshɔn kɔmpreshɔn difɔmeshɔn . , bɔt bak wan patikyula digri fɔ . Lateral bulging difɔmeshɔn . . Dis mɛkanikal bihayvya de apɔlayz bak fɔ . Floor Vibration Dampers . ɛn Fleksibul rɔba pad dɛn . Insay 1999. Bildin Vaybreshɔn Kɔntrol Sistɛm dɛn ..
1.2 Fɔmula fɔ kɔlkyulɛshɔn .
fɔ wan rɔba bia we gɛt we gɛt . n rɔba layers . , if wi tek am se di rɔba matirial nɔ kɔmprɛs ɛn dɛn kin put am ɔnda . Pure kɔmpreshɔn . , di Vɛtikal Stifnɛs . na fɔ kɔl am as .:
KV=E1⋅A0N⋅T1K_V = \FRAK{E_1 \CDOT A_0}{N \CDOT T_1}KV=N⋅T1E1⋅A00.
Usay:
E₁ — Longitudinal elastik modulus fɔ rɔba .
A₀ — Effective load-bearing eria .
t₁ — Tiknes fɔ wan rɔba layt .
Dis fɔmula gɛt impɔtant rɛfrɛns valyu fɔ . Laminated rubber bearings ., Sabgrɛd damping pad dɛn . , ɛn Vaybreshɔn ayzolayshɔn rɔba prɔdak dɛn we dɛn kin yuz na rel transit sistem dɛn ..
2. Dizain konsept fɔ di ɔtomatik kɔmprɛsiv ɛlastik mɔdyul tɛst sistɛm .
Di Otomatik kompressiv elastik modulus testin sistem . men wan na di wan dɛn we gɛt di .:
Kɔmpreshɔn tɛst mashin .
Displeysmɛnt ɛn Fɔs Sɛns .
Prɔfɛshɔnal tɛst ɛn data analisis softwea .
We dɛn de du tɛst, di sistɛm kin . Kɔntinyu fɔ gɛt vertikal lod ɛn kɔmpreshɔn difɔmeshɔn data . , ɔtomɛtik wan jenarayz . Stress–strain kɔv dɛn . , ɛn kɔl di . Kompresiv elastik modulus . along wit . Devieshɔn analisis ..
Di aplikeshɔn fɔ dis sistɛm .:
I rili ridyus di wok we dɛn de du fɔ mek dɛn ebul fɔ du dɛn wok fayn fayn wan .
I de avɔyd fɔ mek mɔtalman nɔ rid mistek .
Kip tɛst mistek dɛn insay akseptabl limit .
Dis tɛst mɔd nɔto jɔs fɔ . Laminated rubber bearings . , bɔt bak fɔ . Floor Vibration Dampers . ɛn Fleksibul rɔba pad dɛn . fɔ mɛkanikal pefɔmɛns ɛvalueshɔn.
3. Ɛnjinia kes stɔdi ɛn kɔmpia di we aw dɛn de du di tɛst .
3.1 Kes Diskripshɔn .
A Laminated rubber bearing na na na na na na na na na na na na na na na na na na na na na na na . bin pik as di tɛst spɛshal wit di paramita dɛn we de dɔŋ ya .:
dayamita .: 140 mm
ayt we dɔn dɔn .: 25 mm di 25 mm
Single rubber layt tiknes .: 4 mm
stiel plet tiknes .: 2 mm
Nɔmba fɔ di stɛl plet layers .: 3 Layers .
Effective load-bearing eria .: 15,366 mm2 di 15,366 mm2.
Shep Factor .: 7.0
TƆTAL RƆBA TIKIN .: 20 mm
Akɔdin to di nyu standad, di . Disain renj ov kompressiv elastik modulus . IS . (303 ± 60) MPA.
3.2 Influwens ɔf difrɛn lod mɛtɔd dɛn pan tɛst rizɔlt .
fɔ invɛstigat di inflɛns fɔ . Di we aw dɛn de lod . , dɛn bin disayn tu lod skim dɛn .:
Skim 1 (nɔ-standad lod):
Kɔnvɛnshɔnal lod ɛn ɔndo rɛt .
3 Di saykl dɛn we de lod .
Skim 2 (standad fɔ lod):
Stepwise Loading in akɔdin to nyu standad dɛn .
ɛni lod lɛvɛl we dɛn de mentɛn fɔ . 120 sɛkɔn dɛn . Bifo difɔmeshɔn data akwyeshɔn .
Test rizulyt sho se .:
Skim 1 . de sho wan devieshɔn we pas . 3%, wit klia wan . Hysteresis ifɛkt dɛn .
Skim 2 . sho divεlכpmεnt less dan . 3%, we de gi . Mɔ stebul ɛn rilibul rizɔlt dɛn .
Dis kɔnklushɔn de sav bak as valyu rɛfrɛns fɔ evaluate di lɔng tɛm pefɔmɛns fɔ . Sabgrɛd damping pad dɛn . ɔnda di lod dɛn we dɛn dɔn kɔntinyu fɔ yuz.
4. Mɛzhɔmɛnt Ɔnsatayniti Analysis we dɛn de du tɛst .
4.1 Ɔnsatayniti faktɔ dɛn we nɔ gɛt ɛnitin fɔ du wit di matirial prɔpati dɛn .
Dɛn wan ya na di men wan dɛn we de insay:
Mejmɛnt akkurasi fɔ tɛst inschrumɛnt dɛn . (Kɔmpreshɔn mashin, displeysmɛnt mita, ɛkstensɔmɛta, ɛn ɔda tin dɛn)
Data Raundin Rul dɛn .
Difrɛns insay standad intapriteshɔn ɛn ridin bay ɔpreshɔn dɛn .
Dɛn ɔnsatayniti ya kin ridyus fayn fayn wan tru . Tɛst dɛn we dɛn kin du bɔku tɛm . ɛn Stɛndadayz ɔpreshɔn prosidyuz dɛn ..
4.2 Ɔnsatayniti faktɔ dɛn we gɛt fɔ du wit di tɛst spɛshal .
Dɛn tin ya na:
mistek dɛn we de insay . Effective load-bearing eria .
Mejmɛnt mistek dɛn we de insay . Total raba tiknes ɛn stɛl plet tiknes .
mistek dɛn we de insay . Di tin dɛn we dɛn dɔn dɔn fɔ mɛzhɔ we dɔn dɔn .
Influwens fɔ di . Ambient temperechur ɛn humiditi .
Dɛn kayn tin ya na di sem impɔtant tin we dɛn de du fɔ tɛst . Fleksibul rɔba pad dɛn . ɛn Floor Vibration Dampers ..
5. Kɔntrol fɔ di ɔl mɛzhɔmɛnt ɔnsatayniti .
Afta ɔl di mistek paramita dɛn dɔn kam togɛda, wan . Tɔtɔl mɛzhɔmɛnt ɔnsatayniti . na fɔm. Stɛnda dɛn we gɛt fɔ du wit dis klia wan sho klia wan di . Maksimal mistek dɛn we dɛn kin alaw . Fɔ ki paramita dɛn lɛk . Lod ɛn displeysmɛnt ..
bay we dɛn strikt wan fɔ fala dɛn standad ya ɛn fɔ kɔntrol di kumulativ mistek dɛn fayn fayn wan, di . Rilaybiliti ɛn akkuracy fɔ di tɛst rizɔlt dɛn . kin bi signifyantli improve.
Dɔn
Laminated rubber bearings . na indispensabl komponent dɛn insay . Strukchɔ dɛn we dɛn mek na di aywe brij dɛn . , ɛn dɛn . Kɔmprɛsiv pefɔmɛns . I de afɛkt dairekt wan . Brij Opareshɔnal Sɛfty ..
tru di sayɛns aplikeshɔn fɔ . Kɔmprɛsiv ɛlastik mɔdyul tɛst mɛtɔd dɛn . , we dɛn jɔyn wit . Mejmɛnt Ɔnsatayniti Analysis . , kumulativ mistek dɛn kin kɔntrol fayn fayn wan, mek shɔ se dɛn gɛt ay tɛst akkuracy.
Di tin dɛn we dɛn fɛn na dis stɔdi nɔto jɔs fɔ yuz fɔ . Brij Ɛnjinia . , bɔt i de gi wi bak valyu . Tiori ɛn prɛktikal rɛfrɛns dɛn . fɔ di . Dizayn, Tɛst, ɛn Aplikeshɔn . ɔf Floor Vibration Dampers ., Fleksibul rɔba pad dɛn . , ɛn Sabgrɛd damping pad dɛn . , ɛn ɔda pipul dɛn . Enjinering rubber vibration isolation Prodakt dɛn . ..
Insay 1999. haywe brij injinɛri ., Laminated rubber bearings . na dɛn de yuz bɔku say bitwin di supastakt ɛn di sabstrakchɔ fɔ di brij dɛn.
