Khảo sát góc lắc của tải trọng nâng đối với cổng trục

NGHIEN Cflu - TRAO DOI

KHAO SAT GOC LAC CUA TAI TRONG NANG DOI VOl cdNG TRUC

Nguyen Hflu Tho

Trfldng Dai hpc Bach khoa Thanh phd Hd Chi Minh

TOM TAT

Dao dgng tdi trgng ndng tren cdc loai mdy true thudng gdy ra nhieu tdc ddng khdng mong mudn

nhu tdi trgng dgng ldn, sU chinh xdc ve vi tri chdt tdi vd dd tdi... Dodo, viec hqn che gdc ldc cho tdi trgng

ndng Id rdt quan trgng, Id mdt trong nhUngyiu td dUdc xem xet ddu tien khi thiet kihe thdng mdy true.

Bdi bdo ndy (1) nghien cUu ve gdc lac cua tdi trgng ndng vUa ldc vd vUa di chuyin theo xe con cua cong

true qua md hinh cd hgc, (2) hqn che gdc ldc qua viic sw" dung cdng cu MATLAB/Simulink cho kit qud

ddng tin cdy.

ABSTRACT

Vibration of hoisting mass of the cranes usually has the undesired impacts on the large dynamic

' force, the exact location of loading and unloading... Therefore, the anti-sway of oscillating angle for hoist￾ing mass is very important. One of the first factors is considered when designing the crane systems. This

paper shows the research of oscillating angle for the hoisting mass when it moves and oscillates simultane￾ously following the trolley of the overhead crane through the model of mechanics and (2) solves the anti-

, sway angle with MATLAB/Simulink tool with the feasible results.

1. GlCtt THIEU dilm kit eau cua he thdng cd sfl thdng nhat cao

cua kit qua lap rap tai trpng nang, mde treo va

Can eau la mpt trong nhflng phflong ti|n cap nang vl mat ddng lflc hpc he thdng phflc hpp.

chu ylu dung de eo gidi hda cdng tac xIp dd, van Diem treo vat nang hinh thanh con lac, dao ddng

chuyin hang hda, tang nang suat lao dpng va trong mat phang hay khdng gian. Do vay, vile md

ha gia thanh san phim. Thilt bi nay dflpc phat hinh hda, md phdng vi tinh toan dpng hpe, ddng

triln nhanh chdng, dap flng ngay cang cao nhu Iflc hpe, dilu khien mdt he thdng can cau vd cung

' cau eua khach hang ca vl chat Iflpng, nang suat quan trpng, nham tang nang suat lap dpng dam

van chuyen, thda man yeu cau nang - van chuyin bao dp cflng vflng, dp an toan va tin cay cao la

hang theo nhflng quy dao phflc tap, chinh xac tai nhilm vu cap bach ddi vdi eac nha nghien cflu

nhflng vi tri can thiet va an toan trong qua trinh trong nhflng nam gan day.

iii lam vile.

Dilm dac bilt cua cac loai can cau la cd xe

' He thdng can cau bao gdm eo eau nang, di chuyen mang vat nang, thflc hiin hai chuyen

J CO cau di chuyen va CO cau thay ddi tam vdi. Sfl dpng trong mgit phang thang dflng: xe di ehuyen

phan loai dfla tren sd bac tfl do eua he thdng, dac theo phflong ngang, vat nang ed ehuyen ddng lac

TAP CHi CO KHi VIET NAM • Sd 5 (Thang 5 nam 2012) |^ 9