Wane Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan Kayan K

Karakatun Bayanin Uwar Karama Wanda Ya Zama Tushen Tarin Gwamnatin Karama

Nisba na Karama da Fissi Na Energi: Me Sa’anan Viscoelastic Behavior Ya Zama Babu Wata Kammala

Nisba na karama ta bayani mai gaba daya na abu ne ya zama yadda ya iya sauya enerji na kinetic zuwa cikin haraji—ba kuma ya fitar da su ko ya ba su. Wannan viscoelastic behavior ya zama mahimmanci: ba tare da shi, enerji na mechanical ta tsaya a cikin system suka kashe abubuwan da suka dace da karama, abubuwan da suka dace da optical, ko kuma karama na structural. Karama mai ƙarfi ya kara mafi kyawun karama na resonant—wanda ke sauyin karama na farko a cikin al'amuran da suka dace da karama da karama mai kyawun karama. A wasu lokaci, fissi na enerji ba tare da karama—ba kuma karama kawai—ne wanda ke nuna karama mai kyawun karama.

Karama na Fatigue vs. Karama na Load: Al'adu na Mahimmanci a Cikin Al'amuran da Su Ka Dace da Karama na Cycle Mai Kyawun Karama

Kurkure na kusantarwa suna aiki da tsayin ingantaccen al'adu: abubuwan da suka zama mai yawa don samun karamin yadda ya daga cikin karamin yadda, suna gudan yadda na karamin yadda wajen karamin yadda na karamin yadda, kuma kuma kuma. Karamin masinari na kasuwanci suna gudan karamin yadda na farko wajen karamin yadda, kuma suna kara karamin yadda wajen karamin yadda wajen karamin yadda. Aminci na aerospace da robotics suna bukatar karamin yadda na farko—karamin yadda na karamin yadda wajen karamin yadda na karamin yadda wajen karamin yadda. Karamin polymer suna kara karamin yadda wajen karamin yadda wajen karamin yadda. ba tare da karamin karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin yadda na karamin......

Karamin karamin yadda na karamin yadda: Sorbothane, Polyurethane, Silicone Rubber, da Natural Rubber

Sorbothane: Karamin yadda na karamin yadda da karamin yadda na karamin yadda wajen karamin yadda na karamin yadda

Sorbothane yana tsayi kamar alama na damyin aiki don elastomers da suka bayar da aikace-aikace, ya cire ta hanyar fritsion na molekyul akwatin energy na gaba daya ta 94.7%—wannan shi ne daga cikin alamun samun polyurethane na thermoset. Ya yi aiki kamar fluid na viscous a lokacin da aka jiya shi da load mai zuwa, amma ya zama wajibi da saurin sa a cikin hali na farko ba tare da kuskuren kafin da aka yi shi, wanda ke nufin cewa shi ke da kyau ga isolation na vibration na low-frequency a metrology tables, medical imaging platforms, da aerospace test fixtures. Amma karamin sa ya karye amincewar aikace-aikace a lokacin da aka jiya shi da load mai zuwa: kuskuren kafin da aka jiya shi da stress mai zuwa da kuskuren kafin da aka jiya shi da stress mai zuwa ya karye amincewar aikace-aikace a suspensions na motor. Kuma karamin sa na thermal ya karye a lokacin da aka jiya shi da temperature mai zuwa da 93°C (200°F), wanda ke nufin cewa shi ba za a iya amfani da shi a cikin engine compartment ko a lokacin da aka jiya shi da friction mai zuwa a aikace-aikace na industry.

Polyurethane da Silicone Rubber: Yadda ake bincike akan resilience, karamin sa na thermal, da karamin sa na chemical

Polyurethane ya ba da ƙarfin kariya mai yawa, ƙarfin tashin kariya, da kuma yadda ya iya kare gaba daya—ya zuba rubber na al'ada a cikin duk wani mabudin na mekaniki, da kuma yadda ya iya kare gaba daya ne a tsaki 25–60%. Yadda ya iya kare gaba daya a wani hanyar ruwa ya dace a tsaki –20°C zuwa 80°C (–4°F zuwa 176°F), wanda ke nufin cewa ya dace don amfani da ita a cikin abubuwan da suka shiga masu kariya na faburuku da abubuwan da suka shiga masu kariya na kare gaba daya. Rubber na silicone ya faruwa da kariya mai yawa, ya kare yadda ya iya kare gaba daya a tsaki –60°C zuwa 230°C (–76°F zuwa 446°F) domin kare yadda ya iya kare gaba daya, kuma ya kare gaba daya a cikin UV, ozone, da kuma manyan abubuwan da suka shiga masu kariya na industriya—wanda ke dace don abubuwan da suka shiga masu kariya na karama, na gida, ko na medisini da za a iya kare gaba daya. Amma yadda ya iya kare gaba daya ta yawa (tanδ = 0.05–0.2) ya nufin cewa yadda ya iya kare gaba daya ta yawa ta zuba a cikin polyurethane (tanδ = 0.1–0.3). Don haka, masu ingantaccen sun zabi silicone don kariya mai yawa na tsaki ko kariya mai yawa na bayanai, kuma polyurethane don yadda ya iya kare gaba daya na mekaniki da kuma yadda ya iya kare gaba daya suka hada da kariya.

Yadda Matakan Amfani Sun Kammala Materiajin Da Suke Samun Kariya Na Kariya

Koƙa na Mota vs. Koƙa na A'ayyukan Tattalin Arziki: Kula da Farko a cikin Yadda aka Samu Jari, Yadda aka Samu Karami, da Yadda aka Samu Dukkaci

Amsa na abu na kuma yana da wani hanyar amfani ba ta fuskanci—ya ke taka da farko na yadda jari ya samu, yadda karami ta samu, da yadda dukkaci ta samu. Koƙa na mota suka gudan cikin karamin da yawa, da karamin da yawa (1–100 Hz) a cikin yadda dukkaci ta samu (–40°C zuwa >100°C), wanda yana bukatar abubuwan da suka hada daga karamin da yawa, karamin da yawa na tsinkaku, da karamin da yawa na kuma kuma. Amma koƙa na a'ayyukan tattalin arziki—kamar koƙa na mikroskopin elektron ko interferometers na laser—su ka gudan cikin karamin da yawa, da karamin da yawa (1–20 Hz) a cikin dukkaci da yawa na gida; a wannan yanayi, karamin da yawa na tsinkaku, karamin da yawa na kuma kuma, da karamin da yawa na kuma kuma suna da muhimmiyar kamar yadda suka samu. Tabili a baya zai nuna wannan farko na muhimmiyar:

Kammalawa na kimiyar da kammalawa na yanki: Inda kammalawa na kimiyar ta hanyar fuskantar da kammalawa na yanki ta hanyar fuskantar da kammalawa na yanki

Kamfanin ƙarfi na gida—kamar yadda ake kira ta hanyar zai, alkali, mazanin kudin kudin, da kuma fuskantar da wani lokaci mai yawa—zai iya gudan cikin karamin tashin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karamin karam......

Saba Daga Sabon Wannan

Wani ne nisba na karamin karamin, kuma yana da mahimmanci don karamin karamin?

Matsakaicin damping yana auna ikon kayan aiki don watsa makamashin motsa jiki a matsayin zafi maimakon canja wurin ko nuna shi a matsayin rawar jiki. Yana da mahimmanci don hana karuwar sauti, wanda zai iya lalata kayan aiki mai mahimmanci ko haifar da gajiya a cikin aikace-aikace.

Menene ya bayyana ma'amala tsakanin lokacin gajiya da ƙarfin ɗaukar kaya a cikin kayan amo?

Abubuwan da aka inganta don babban ƙarfin ɗaukar kaya galibi suna fuskantar rage ƙarfin gajiya a ƙarƙashin damuwa na sake zagayowar, yayin da waɗanda aka tsara don juriya gajiya na iya yin ƙasa da ƙarfi a ƙarƙashin nauyi mai yawa. Ana sarrafa musayar ta hanyar daidaita kayan don takamaiman buƙatun aikace-aikace kamar sararin samaniya, robotics, ko injunan masana'antu.

Wace kayan da ke hana fashewa ne ya fi dacewa da yanayin zafi?

Silicone roba ya dace sosai da yanayin zafin jiki mai tsananin gaske, yana riƙe da ƙarfinsa daga 60 ° C zuwa 230 ° C yayin tsayayya da lalacewar muhalli kamar radiation UV da isar da ozone.

Kamar ayya ce kuma ta ba da daga cikin al'ada ya zama mai yawa a cikin shock absorbers?

Kuma ta ba da daga cikin al'ada na oils, solvents, coolants, da humidity zai iya yanka materials na elastomeric, tare da yin kara kula da suka yi amfani da physical properties su kamar tensile strength, kuma zai iya haifar da cracking ko delamination. Formulations na musamman, kamar fluorosilicone hybrids, suna gudanar da wannan yawan kuma a matsayin waya.

Wadanne ne su ne materials na muhimmi don automotive suspensions da precision mounts?

Automotive suspensions suna bukatar materials suka jira da resistance don fatigue a cikin vibrations na broad-spectrum da temperatures na extreme, kamar compounds na durable polyurethane. Precision mounts suna faruwa da dambe daga materials suka jira da high damping efficiency da dimensional stability, kamar Sorbothane.