1. Qhov sib txawv thermal expansion coefficients ntawm cov khoom sib koom ua ke cuam tshuam li cas?
Kev nthuav dav tsis sib haum ua rau muaj kev ntxhov siab sab hauv thaum muaj qhov kub thiab txias. Bimetallic corrosion txaus ntshai nce nrog cov hlau sib txawv. Cov kws tsim khoom xaiv cov khoom siv nrog cov khoom siv thermal sib xws. Kev nthuav dav yuav tsum ua raws li qhov phem tshaj - xwm txheej xwm txheej. Finite element tsom xam kwv yees cov thermal stress distributions.
2. Dab tsi yog qhov nyuaj hauv kev tsim biodegradable rail joint lubricants?
Must maintain performance under extreme pressures (EP ratings >3000 N.) Lub sij hawm degradation yuav tsum phim lub sij hawm relubrication. Tsis tuaj yeem nyiam lossis ua phem rau tsiaj qus. Yuav tsum muaj tshuaj ruaj khov hauv UV / huab cua. Cov formulations tam sim no ua tiav 6-12 lub hlis biodegradability yam tsis muaj kev cuam tshuam lubrication.
3. Yuav ua li cas piezoelectric thev naus laus zis txhim kho kev tsheb nqaj hlau sib koom ua ke saib xyuas?
Embedded sensors tsim lub zog los ntawm kev vibration zog. Ntsuas dynamic load faib raws li - sij hawm. Tshawb xyuas micro- tawg los ntawm acoustic emissions. Wireless kis tau tus mob tshem tawm kev kho cov kab mob. Cov tshuab tam sim no ua tiav 95% kev tshawb pom qhov tseeb rau qhov ua tsis tiav.
4. Yuav ua li cas metallurgical kev nce qib txhim kho kev sib koom ua ke ntawm kev qaug zog tiv thaiv?
Nanostructured bainitic steels qhia 40% ntev zog lub neej. Gradient hardness profiles optimize nto / core zog. Grain ciam engineering txo cov kab nrib pleb. High-entropy alloys tiv thaiv ntau lub tshuab degradation. Cov kev tsim kho tshiab no txuas ntxiv kev pab cuam los ntawm 2-3x.
5. Yuav ua li cas magnetorheological rail pob qij txha hloov mus rau dynamic loads?
Cov kua dej- cov pob qij txha sib txawv ntawm qhov sib txawv ntawm cov khoom siv hluav taws xob. Damping adjusts cia li khiav ceev / hnyav. Prototypes txo qhov cuam tshuam los ntawm 35-50%. Fais fab kev xav tau nyob rau hauv 100W ib leeg. Muaj peev xwm rau kev ua haujlwm ntawm tus kheej siv kev vibration sau.