Vol.1, No 9, 2002 pp. 1127 - 1133
UDC 62-272.43:623.435
DESIGN AND CALCULATION OF RING
SPRINGS
AS SPRING ELEMENTS OF THE WAGON BUFFER
Jovan Nešović
Faculty of Mechanical Engineering Kraljevo, Dositejeva Street 19, 36000
Kraljevo
E-mail: javor@ptt.yu
Abstract. This study represents a modern approach to design and
calculation of ring springs which are used as spring elements of the wagon
buffers. During exploitation these springs are exposed to an effect of
the longitudinal forces of great intensity, there are intensive friction,
wear as well as great surface pressure on the adjacent tapered ring surfaces.
All these specifications should be taken into consideration during design
and calculation and beside that, ring spring has to satisfy recommendations
of UIC connected with: capacity, space capacity, final force, working capacity,
etc. A modern approach to design includes mathematical (theoretical) model
combined with simulation model in order to get main indices connected with
the quality of future work. The results of these analyses are confirmed
by experiments, too. The experiments are done on the ring spring for "B
category" buffer (capacity 50 kJ).
Key words: ring spring, working capacity, stress, simulation,
tests
PROJEKTOVANJE I PRORAČUN PRSTENASTIH
OPRUGA
KAO OPRUŽNIH ELEMENATA ODBOJNIKA VAGONA
U ovom radu je dat jedan savremen pristup pri projektovanju i proračunu
prstenastih opruga koje se koriste kao opružni elementi odbojnika vagona.U
toku eksploatacije ove opruge izložene su dejstvu podužnim silama velikog
intenziteta, prisutno je intenzivno trenje, habanje, kao i veliki površinski
pritisci na dodirnim konusnim površinama prstenova. Sve ove specifičnosti
treba uzeti u obzir pri projektovanju i proračunu, a pored toga prstenasta
opruga mora zadovoljiti preporuke UIC-a vezane za: kapacitet, smeštajni
prostor, krajnju silu, radnu sposobnost, itd. Savremen pristup projektovanja
obuhvata matematički (teorijski) model kombinovan sa simulacionim modelom
radi dobijanja glavnih pokazatelja vezanih za kvalitet budućeg rada. Rezultati
ovih analiza potvrđeni su i eksperimentalnim putem i to na prstenastoj
opruzi za odbojnik klase "B" (kapaciteta 50 kJ).
Ključne reči: prstenasta opruga, radna sposobnost, napon, simulacija,
ispitivanje
