Cov kev cai rau kev tiv thaiv tsheb thauj khoom

kev txawj ntse
Nrog rau kev siv cov ntsiab lus tseem ceeb ntawm ECE R58, peb lub teb chaws tau tsim lub GB11567.2-2001 tus qauv los muab cov kev xav tau rau cov khoom siv tiv thaiv qis hauv qab ntawm cov tsheb thiab cov tsheb thauj khoom, thiab qhia meej meej cov kev sim rau kev sib tsoo tom qab kawg. nrog txav barriers. Lub hom phiaj yog txhawm rau kuaj cov khoom siv tiv thaiv qis hauv qab ntawm cov tsheb thauj khoom. Kev thaiv thiab buffering lub zog-absorbing lub luag haujlwm ntawm cov cuab yeej tiv thaiv qis yog ntsuas kom txo qis kev raug mob rau cov neeg nyob hauv lub tsheb tom qab kawg thaum muaj kev sib tsoo tom qab. Nyob rau hauv cov ntaub ntawv [1], ib tug rotary rear qis tiv thaiv ntaus ntawv yog tsim. Cov cuab yeej no siv lub rotating axis kom ua tau zoo passability rau cov tsheb thauj khoom. Nws siv lub caij nplooj ntoos hlav damping kom nqus tau lub zog thiab tsim ib qho qauv tshuaj ntsuam xyuas los tsim lub zog-absorbing rear qis tiv thaiv ntaus ntawv. ntaus ntawv, cov cuab yeej tiv thaiv nram qab no tau ntim nrog cov khoom siv fiberglass kom nws yog extruded thiab deformed nyob rau hauv cov kev tshwm sim ntawm kev sib tsoo kom ua tiav lub zog-absorbing nyhuv. Cov ntawv nyeem [4] txheeb xyuas qhov cuam tshuam ntawm qhov siab hauv av thiab nruj ntawm cov khoom siv tiv thaiv pem hauv ntej thiab nram qab ntawm kev tiv thaiv kev sib tsoo thiab taw qhia Cov khoom siv tiv thaiv pem hauv ntej thiab nram qab yuav tsum nqus kom muaj zog sib tsoo ntau npaum li sai tau thaum ua kom muaj kev tiv thaiv kev nkag. kev sib tsoo, thiaj li txo qhov kev puas tsuaj rau lub tsheb hauv kev sib tsoo. Raws li cov kev cai cuam tshuam ntawm GB11567.2-2001 tus qauv, LS-DYNA software tau siv los ua kev tswj xyuas kev tswj xyuas thiab kev soj ntsuam kev ua haujlwm ntawm cov khoom tiv thaiv tom qab ntawm lub tsheb. Raws li qhov tseeb hais tias tus thawj rear tiv thaiv ntaus ntawv tsis muaj thaiv thiab buffering zog-absorbing zog, Disadvantages, ib tug tshiab expansion tube rear tiv thaiv ntaus ntawv yog tsim. Simulation tsom xam ntawm kev txhim kho cov cuab yeej tiv thaiv qhia tau hais tias lub raj nthuav dav ruaj khov thaum lub sij hawm nthuav dav thiab deformation theem, thiab lub zog nqus dej muaj cov yam ntxwv ntawm cov kab superposition thiab yooj yim los tswj. Cov cuab yeej tiv thaiv kev txhim kho tom qab ua tau raws li cov kev cai tswj hwm, thiab nws cov kev thaiv thiab lub zog nqus dej kuj tseem txhim kho.