75 thu nghiem xac dinh ung suat dong tren khung giá chuyen huong

THlT NGHIEM XAC DINH iTNG SUAT DONG TREN KHUNG GIA CHUYEN Hl/dNG TOA XE KHACH RUMANI SU" DUNG TAI x i NGHIEP TOA XE SAI GON GS TS DO BU'C TUAN Bd mdn Bau may - Toa xe ThS L U O N G XUAN CHIEU Trung tam Khoa hpc Cdng nghi Tru&ng Bai hpc Giao thdng Van tdi Tom tdt: ^^' ^^° Sidi thieu mpt so kit qud thu nghiem dpng nhdm xdc dinh ung sudt dpng, hi so dpng tren khung gid chuyin huang toa xe khdch Rumami sic dung tai Xi nghiep toa xe Sdi gdn Qud trinh thu nghiem dpng da dugc tiin hdnh doi vai toa xe khdch Rumani A31351 dodn tdu SNT2, SNTl chay tren khu doan Sdi Gon-Nha Trang vd ngugc lgi Kit qud thic nghiem Id ca so de ddnh gid dp bin kit cdu khung^'gid chuyin huang toa xe Summary: This paper introduces some results of experiment for dynamic stress, dynamic factor determination on bogie frame of Rumanian passenger railroad cars used at Saigon Railroad Car Enterprise Dynamic testing process was done on A31351 Rumanian passenger railroad cars on SNT2, and SNTl trains running on Saigon - Nha Trang sector and vice versa The results of dynamic test is a foundation to structure strength test for bogie frame of railroad cars I DAT VAN DE De danh gia dp ben noi chung va dp ben moi noi rieng cua cac ket cau nhu thimg xe, be xe va khung gia chuyen huong toa xe khach Rumani, loai toa xe da dugc sii dung tren 30 nam nganh duong sat Viet Nam, can phai tiln hanh nhieu nghien ciiu khac nhau, co viec thir nghiem tmh va thii nghiem dpng nham xac djnh ling suat tinb, ling suat dpng va be so dpng tren cac ket cau da neu Ket qua thir nghiem xac djnh umg suat tmh tren khung gia chuyen huong toa xe khach Rumani da dugc trinh bay [1] Trong bai viet gioi thieu mot s6 ket qua thir nghiem xac djnh iing suat dpng va he so dpng tren ket cau khung gia chuyin huong toa xe khach Rumani su dung tai Xi nghiep toa xe Sai Gon 72 Tap chi KHOA H O C GIAO THONG VAN TAI So 33 - 03/2011 II Tmf NGHIEM DONG KHUNG GIA CHUYEN m T d N G TOA XE KHACH RUMANI 2.1 Qua trinh thir nghiem dong Cac vj tri va s6 diem ung suat tren khung gia chuyen huong toa xe khach Rumani dupe liet ke bang So d6 cac diem dugc the hien tren cac hinh 1, Bdng I Bdng Hit ki cdc diem irng sudt tren gid chuyin huong toa xe khdch Rumani A31351 Ghi ehii TT Vi tri Ky hieu diem 1,2,3,4,5,6 Do ung suat tmh va dpng Gia truac, xa dpc ben phai 7,8,9,10 Do irng suat tmh va dpng Gia truoc, xa ngang truoc Do ling suat tmh va dpng Il,r2,13,14,15,16 Gia tru6c, xa dpc ben trai Do ling suat tmh va dpng 17,18,19,20 Gia truoc, xa ngang sau Hinh Cdc vi tri ung sudt trin khung gid chuyin huong toa xe khdch Rumani A31351 si 1,1 ^/////////^////////M ,it^- I -6-