Yuav ua li cas xaiv ib tug haum Membrane Structure?

Tension membrane cov qauv yog hom tshiab thiab nrov ntawm cov khoom siv hauv tsev. Thaum xaiv qhov nro membrane qauv, nws yog ib qho tseem ceeb kom nkag siab txog nws cov yam ntxwv ntawm kev ua haujlwm. Hauv qab no yog cov lus qhia ntxaws:

1. Tensile Properties: Cov khoom tensile ntawm cov ntaub ntawv membrane muaj xws li peb lub tshuab ntsuas: tensile zog, tensile modulus, thiab Poisson tus piv. Membrane cov ntaub ntawv lawv tus kheej tsis tuaj yeem tiv taus compression lossis khoov, tab sis lawv muaj lub zog tensile siab heev. Yog li ntawd, txhawm rau ua kom lub cev ua haujlwm ib txwm ua ntawm cov qauv membrane, ua ntej- nro yuav tsum tau qhia, thiab cov khoom sib txuas yuav tsum tau tsim. Feem ntau, lub zog tensile ntawm cov ntaub ntawv membrane tuaj yeem ncav cuag tshaj 100 MPa.

Cov kev ntxhov siab-kev sib raug zoo ntawm cov khoom siv membrane tsis yog-linear. Feem ntau, lub tangent modulus yog siv los ua lub elastic modulus. Lub elastic modulus ntawm cov khoom siv membrane yog kwv yees li ib - thib peb ntawm cov hlau. Poisson tus piv ntawm cov khoom siv membrane, piv txwv li, nws cov yam ntxwv deformation sab nraud, yog kwv yees li 0.2. Txij li thaum lub membrane yog ib tug biaxially stressed qauv, lub elastic modulus thiab Poisson tus piv ntawm cov ntaub ntawv membrane yuav tsum tau txiav txim los ntawm biaxial tensile xeem thaum lub sij hawm tsim theem.

2. Tear Strength: Membrane cov ntaub ntawv yog tensile structural cov ntaub ntawv, thiab lawv tearing tsis ua hauj lwm yog ntau hnyav dua tensile tsis ua hauj lwm. Yog li ntawd, lub zog tsim kua muag thiab tsim kua muag kuj tseem ceeb heev. PVC-coated polyester filament fabrics muaj lub zog tsim kua muag me ntsis, thaum PTFE-coated iav fiber ntau cov ntaub ntawv muaj lub zog tsim kua muag.

3. Orthotropic Properties: Lub nkhaus nto ntawm lub tensile membrane qauv yuav tsum opposite curvatures raws nws ob lub ntsiab axes, warp thiab weft. Ib qho kev taw qhia ntawm curvature yuav tsum yog concave downwards, thaum lwm qhov yuav tsum convex upwards. Tsob ntoo daim nyias nyias yog woven los ntawm warp thiab weft yarns, nthuav tawm muaj zog orthotropic zog, nrog ib tug 3-5 lub sij hawm sib txawv ntawm warp thiab weft deformation peev xwm.

4. Kev nkag siab thiab so: Kev nkag siab thiab kev so yog lwm yam tseem ceeb ntawm cov ntaub ntawv hauv daim nyias nyias thiab ib qho tseem ceeb ua rau wrinkling thiab tsis ua haujlwm. Qhov no yuav tsum tau txiav txim siab thaum txiav kev txheeb xyuas thiab ua tiav. Polyester filament fabrics tuaj yeem poob 50% ntawm lawv cov kev ua tsis zoo vim yog nkag hauv thawj kaum xyoo ntawm kev siv, thaum iav fiber ntau cov ntaub ntawv ruaj khov dua.

5. Tsis yog- cov khoom siv tshuab: Kev nyab xeeb- cov khoom muaj feem xyuam, xws li kev ua haujlwm ntev, hluav taws kub, thiab kev tiv thaiv xob laim; tsis yog-kev nyab xeeb- cov khoom muaj feem cuam tshuam, xws li lub suab rwb thaiv tsev lossis cov khoom siv acoustic, thiab tus kheej- cov khoom siv tu.