Taw qhia rau cov khoom damping ntawm cov khoom siv thermoplastic CF/PEEK.
Ntau tus neeg tseem yuav nco ntsoov ib tsab xov xwm uas lawv tau kawm txog ib tus choj hauv nroog Angers, Fabkis txoj kev sib tsoo vim yog cov tub rog taug kev hauv kev sib koom ua ke ua rau muaj suab nrov. Kab lus hais txog lub ntsiab lus physics hu ua "resonance". Resonance yog lub cev tshwm sim uas lub cev vibrates nrog ntau dua amplitude ntawm tej zaus thiab wavelengths piv rau lwm zaus thiab wavelengths. Hauv kev tsim khoom lag luam, tseem muaj ib lo lus hu ua "mechanical resonance", uas yog hais txog qhov tseem ceeb ntawm kev vibration amplitude nyob rau hauv lub tshuab tshuab thaum lub sij hawm sab nraud yog ze rau lub cev zaus. Thaum cov neeg kho tshuab resonance tshwm sim, nws tuaj yeem cuam tshuam rau cov khoom siv hauv lub tshuab, uas tuaj yeem txo cov khoom raug, ua rau qaug zog puas tsuaj, thiab ua rau muaj kev cuam tshuam tsis zoo rau cov txheej txheem ntau lawm. Hauv qhov xwm txheej hnyav, nws tuaj yeem ua rau cov khoom siv nws tus kheej puas tsuaj lossis ua rau muaj teeb meem ntau lawm.
Txhawm rau tiv thaiv qhov tsis zoo ntawm kev siv tshuab resonance, cov kws tshaj lij tuaj yeem xaiv los ntxig lossis kos cov ntaub ntawv nrog cov khoom zoo damping rau hauv cov cuab yeej siv tshuab, lossis xaiv los tsim cov khoom siv nws tus kheej siv cov ntaub ntawv nrog cov khoom zoo damping. Damping yog hais txog lub cev tshwm sim nyob rau hauv uas lub oscillating system los yog vibrating system yog inhibited kom dissipate lub zog nyob rau lub sij hawm, nrog rau lub hom phiaj ntawm mitigating cov teebmeem ntawm vibrations. Resin matrix cov ntaub ntawv yog inherently zoo damping cov ntaub ntawv, thiab txij li thaum carbon fiber composite cov ntaub ntawv feem ntau siv resin matrices, lawv kuj muaj damping yam ntxwv. Txawm li cas los xij, vim lawv lub zog zoo heev thiab qhov zoo ntawm modulus, damping yam ntxwv feem ntau tsis saib xyuas. Niaj hnub no, peb yuav qhia qee qhov tam sim no nrov thermoplastic CF / PEEK cov ntaub ntawv sib xyaw los tshawb xyuas seb lawv cov khoom damping zoo dua.
Taw qhia rau cov khoom damping ntawm thermoplastic CF / PEEK cov ntaub ntawv sib xyaw:
Damping Ratio: Qhov sib piv damping yog qhov taw qhia ntawm cov khoom muaj peev xwm ua kom lub zog tawg, feem ntau qhia hauv daim ntawv piv. Qhov sib piv ntawm cov khoom siv thermoplastic CF/PEEK feem ntau yog nyob ntawm {{0}}.01 txog 0.1, nrog rau cov nqi tshwj xeeb nyob ntawm cov ntsiab lus fiber ntau thiab kev taw qhia.
Temperature Impact: Lub damping kev ua tau zoo ntawm thermoplastic CF / PEEK yog cuam tshuam los ntawm qhov kub thiab txias. Nyob ze ntawm lub iav hloov kub (Tg), qhov kev ua haujlwm damping tuaj yeem hloov pauv, feem ntau pom muaj peev xwm nqus tau zoo dua nyob rau hauv qhov kub thiab txias.
Kev nyob ruaj khov: Cov khoom damping ntawm cov khoom siv thermoplastic CF / PEEK sib txawv nrog cov zaus ntawm cov khoom siv. Ntawm qhov tsawg zaus, cov khoom siv tuaj yeem pom qhov cuam tshuam zoo damping, thaum kev ua haujlwm yuav txo qis ntawm ntau zaus.
Yuav ua li cas los txhim kho cov khoom damping ntawm thermoplastic CF / PEEK cov ntaub ntawv sib xyaw:
1.Optimize Fiber Orientation thiab Layout:Siv woven fabrics los yog hybrid txoj kev los optimize lub orientation thiab layout ntawm fibers yuav txhim khu kev nyuaj siab faib thiab ua kom damping zog.
2. Kho cov ntsiab lus Fiber:Kho qhov ntim ntawm fiber ntau yam tsis muaj kev cuam tshuam cov neeg kho tshuab kev ua tau zoo thiab nrhiav qhov sib piv tsim nyog tuaj yeem txhim kho damping zog.
3.Additives thiab Modifiers:Kev sib xyaw cov tshuaj damping lossis hloov pauv (xws li cov khoom siv roj hmab lossis cov khoom siv viscoelastic) rau hauv cov thermoplastic matrix tuaj yeem txhim kho lub zog nqus thiab txhim kho kev ua haujlwm damping.
4.Siv cov txheej txheem txheej txheej:Kev siv cov txheej txheem ntau txheej nrog cov khoom sib txawv, xws li kev sib txuas cov txheej txheem sib txawv thiab cov yam ntxwv damping, tuaj yeem txhim kho tag nrho lub zog dissipation.
5. Kev kho deg:Siv cov kev kho saum npoo los yog txheej txheej los txhim kho kev sib txuas ntawm cov fibers thiab cov matrix tuaj yeem txhim kho lub zog hloov pauv thiab ua kom lub zog los ntawm kev ua kom zoo dua.
6.Kev xaiv cov txheej txheem ua:Kev sim nrog cov txheej txheem sib txawv xws li kev txhaj tshuaj molding, compression molding, lossis 3D luam ntawv tuaj yeem cuam tshuam fiber ntau orientation thiab tis, yog li cuam tshuam rau kev ua haujlwm damping.
7.Optimization ntawm ntau lawm kub:Tsim cov ntaub ntawv sib xyaw rau qhov ntsuas kub tshwj xeeb thiab nkag siab txog tus cwj pwm viscoelastic ntawm cov khoom sib txawv tuaj yeem ua rau qhov ua tau zoo tshaj plaws.
8.Kev sib xyaw nrog lwm cov ntaub ntawv sib xyaw:Kev sib xyaw cov pa roj carbon fiber ntau nrog lwm hom fiber ntau (xws li iav fibers lossis ntuj fibers) los tsim cov khoom sib xyaw ua ke tuaj yeem qhia cov yam ntxwv damping ntxiv thaum tuav lub zog.
9.Incorporation ntawm Nanomaterials:Incorporating nano-fillers (xws li carbon nanotubes, graphene) rau hauv matrix tuaj yeem txhim kho kev ua haujlwm zoo thiab muab txoj hauv kev ntxiv rau lub zog dissipation, yog li txhim kho damping zog.
Cov khoom damping ntawm cov khoom siv thermoplastic CF / PEEK tsis yog tshwj xeeb. Thermoplastic resins xws li polyamide (PA) thiab polypropylene (PP) kuj tuaj yeem muab cov txiaj ntsig zoo damping, thiab cov txiaj ntsig zoo ntawm lub zog nqus tau zoo rau kev txhim kho kev nyab xeeb. Ib qho tseem ceeb ntawm daim ntawv thov kev taw qhia ntawm thermoplastic CF / PEEK cov ntaub ntawv sib xyaw yog nyob rau hauv kev tsim tsheb. Qhov sib ntxiv ntawm thermoplastic carbon fiber composites txhim kho lub zog nqus cov teebmeem, ncaj qha nce kev nyab xeeb ntawm cov neeg nyob hauv tsheb. Qhov no kuj yog ib qho laj thawj tseem ceeb vim li cas cov qauv high-end hauv kev lag luam tsheb tshiab, xws li WM Motor U9, Hozon Auto SSR, thiab Xiaomi SU7 Ultra, tau koom nrog cov khoom siv carbon fiber ntau.
