Tsvagurudzo pane fungidziro yetsiva yekugadzira yekugadzira yehurongwa hwekuchinjika uye dzinochinja-chinja michero yemuviri1

Abstract: Uku kutsvagisa kunotarisa pakudzidza kwekuchinjika matrix kweiyo yakatwasuka gomba rakakomberedzwa nendege. Iyo yekuongorora yekuverenga yekuverenga ye-mu-ndege defform yehudyu inotorwa zvichienderana neColilever Beam Dzidziso. Iyo yakavharwa-loop imbiso yemhando yekuchinjika matrix inosimbiswa, uye fomu yakareruka yekuverenga iyo yekuchinjika matrix inopihwa kana uchifunga nezvekona yeradius uye hingekobvu. Pamusoro pezvo, mhando yemhando yepamusoro yeiyo hinge yakagadzirwa kuti uone chokwadi chemuongorori. Iko kukanganisa kwehama pakati pekuongororwa uye kusiyanisa tsika dzekuchinjika matstix mairomita inoongororwa kune dzakasiyana hinge svina dine ma parameter. Mhedzisiro yacho inoratidza kuti muenzaniso wekuongorora ndezvechokwadi, uye zvikanganiso zvehama zvinogona kudzorwa mukati menguva inogamuchirika.

Kuchinjika maHINGES kunoshandiswa zvakanyanya muzvishandiso zvakaringana nekuda kwezvakanakira zvadzo zvekugadziriswa kwekutanga, hapana kupokana, uye maitiro akareruka. Aya maHinge anovimba neyavo elastic deformit kuendesa kana kushandura mafambiro, simba, kana simba, kubvisa kukosha kwezvinhu zvakaomarara. Iyo kiyi parameter yeiyo inoshanduka inoshanduka inokanganisa zvakananga maitiro ayo ane simba maitiro uye kupera kumisikidza chokwadi. Kutsvaga kwekutanga kwakatarisa pane dzakasiyana mhando dzekurima mitezo, asi zvidiki zvidzidzo zvakaitwa pane zvakananga gomba rakatenderedzwa dzinoshanduka. Iri pepa rine chinangwa chekuzadza iyi yekutsvagisa geji nekufunda iyo yekuchinjika matrix yezvikepe zvakadaro.

1. Kuchinjika Matrix kweRakarukwa Beam yakatenderedzwa inochinjika hinge:

Iyo yakatwasuka yakatwasuka yakatenderedzwa inoshanduka inoshanduka ndeyekuchira kwepepa ine makona akakomberedzwa kuti udzivise kushushikana kushushikana. Iyo hinge's ma geometric paramita inosanganisira kukwirira, kureba, ukobvu, uye fillet radius. Iyo yakavharwa-loop imbiso yemhando yekuchinjika matsaru weiyo hinge inosimbiswa yakavakirwa pane iyo yakawanikwa yekuongorora nzira yekuverenga mu-ndege deform deform. Iyo yekuchinjika matrix arisheni yakaongororwa kune dzakasiyana hinge mharidzo emahara paramita, uye kukanganisa kwehama pakati peiyo ongororo uye yekufungidzira kukosha kwakaverengerwa.

2. Finite Element Element Kuongororwa kwekuchinjika Matrix:

Kuti usimbise chokwadi cheiyo auyelytical Model, mhando yeiyo yelementi yehusiku yakagadzirwa uchishandisa UGNX Nastran Software. Iyo simulation mhedzisiro yehudyu yakaremerwa neyuniti simba / nguva inoenzaniswa neiyo ongororo ongororo. Kanganiso yerudzi pakati peiyo ongororo uye yekufungidzira maitiro ekuchinjika matrix akaongororwa kune akasiyana maratidziro ehurefu hweHinge kusvika kumusoro (l / t) uye kona radius kusvika kune gobvu (r / t).

2.1 Mhedzisiro yeL / T pane inochinjika matrix parameter:

Iko kukanganisa kwehama pakati pekuongorora uye kusiyanisa maitiro ekuchinjika matrix ma parameter anowanikwa ari mukati 5.5% kana iyo chiyero l / t yakakura kupfuura kana yakaenzana ne4. Kune ratios isingasviki 4, kukanganisa kwehama kunowedzera zvakanyanya nekuda kwekukanganiswa kweiyo inopindirana nedombo regono. Naizvozvo, iyo yakavharwa-loop imbiso yemhando yakakodzera hinge ine yakakura l / t ratios.

2.2 Mhedzisiro ye r / t pane yekuchinjika matrix parameter:

Iko kukanganisa kwehama pakati pekuongororwa uye kusimudzirwa maitiro ekuchinjika matrix parameter anowedzera nekuwedzera kweratio r / t. For ratios pakati pe0.1 uye 0.5, kukanganisa kwehama kunogona kudzorwa mukati me9%. For ratios pakati pegumi nemakumi matatu nemashanu uye 0.3, kukanganisa kwehama kunogona kudzorwa mukati me6,5%.

2.3 Mhedzisiro yeR / T pane SIMPLIFIED Flexibility Matrix Parameter:

Simplified ongororo yekuongorora mafomu ekuchinjika matrix enzomita anopihwa achifunga nezve ratio r / t. Iko kukanganisa kwehama pakati peakarerutswa ongororo uye iyo Simulation tsika inowedzera nekuwedzera kweiyo ratio r / t. Kune raties pakati pe 0.3 uye 0,2, kukanganisa kwehama kunogona kudzorwa mukati me9% uye 7%, zvichiteerana.

Iyo yakagadzirwa yakavharwa-loop eruzivo rwemhando yekuchinjika kweiyo nzira yakatwasuka yakatwasuka makomba ekuchenesa anopa iyo fungidziro yeiyo gadziriso yekugadzira uye michina yekuchinjika uye michina. Iko kurongeka kwemuenzaniso kunosimbiswa kuburikidza nekupomerwa kwepamutemo kwekutanga, uye zvikanganiso zvehama zviri mukati mekuganhurwa zvinogamuchirika zvevakasiyana hinge. Tsvagurudzo iyi inopa kunzwisisika uye kushandiswa kwengarava yakatwasuka yakatenderedzwa kuchinjika mumidziyo dzakasiyana siyana.