This paper considers the radial-axial ring rolling process control and treats the problem of controlling the pressure roll and conical roll motions which are critical to final dimensional accuracy of rolled products. Since the process dynamics reveals non-linear characteristics and parameter uncertainty, an adaptive controller design method is proposed for the pressure roll and conical roll motion control, taking into consideration the process dynamics variation. The effectiveness of the proposed controller has been verified by computer simulation. The simulation results show that the ring rolling process with this adaptive controller is insensitive to variation of process parameters and yields desirable dimensional accuracy of rolled ring products.
Get full access to this article
View all access options for this article.
References
1.
JohnsonW.NeedhamG.Plastic hinges in ring indentation in relation to ring rolling. Int. J. Mech. Sci., 1968, 10, 487–490.
2.
MarczinskiH. J.Advanced ring rolling on Banning HV-ring rolling mills. Symposium on Forming equipment, Chicago, Ill, 1973, pp. 1–19.
3.
YangD. Y.ChoH. S.SongC. S.Development of computerized horizontal-vertical ring rolling machine. Department of Production Engineering, Korea Advanced Institute of Science and Technology, 1983.
4.
KoppersU.WiegelsH.DreinboffP.HenkelJ.KoppR.Methoden zur Verringerung des Material und Energieeinsatzes beim Ringwalzen. Stahl u. Eisen, 1986, 106(14/15), 789–795.
5.
J. Banning technical report, An C. lilies and Co., Hamburg, 1979.
6.
CookP. M.True stress-strain curve for steel in compression at high-temperatures and strain rates, for application to the calculation of load and torque in hot rolling. Proceedings of Conference on Properties of materials at high rate of strain, 1957, pp. 86–97 (Institution of Mechanical Engineers, London).
7.
RyooJ. S.Analysis of the ring rolling process by using dual velocity field. PhD thesis, Department of Production Engineering, Korea Advanced Institute of Science and Technology, 1985.
8.
BeselerK. H.Modern ring-rolling practice. Metal Forming, February 1969, 36, 44–50.
9.
MarczinskiH. J.A review of present stage of development including the technological theory and computerized controls. First International Conference on Rotary metal-working processes, London, 1979, pp. 355–366.
10.
BorumF.Ring rolling in SKF steel: philosophy and equipment. First International Conference on Rotary metal-working processes, London, 1979, pp. 345–354.
11.
YunJ. S.ChoH. S.A suboptimal design approach to the ring diameter control for ring rolling processes. Trans. ASME, J. Dynamic Systems, Measmt, Control, September 1985, 107, 207–212.
12.
ChoiH. D.ChoH. S.An adaptive controller for ring rolling processes. Winter Annual Meeting of ASME, Anaheim, Calif, 1986, DSC Vol. 4, pp. 95–107.
13.
MonopoliR. V.Model following control of gas turbine engines. Trans. ASME, J. Dynamic Systems, Measmt, Control, September 1981, 103, 285–289.
14.
NikiforukP. N.GuptaM. M.TamuraK.The design of a signal synthesis model reference adaptive control system for linear unknown plants. Trans. ASME, J. Dynamic Systems, Measmt, Control, June 1977, 123–129.
15.
SobelK.KaufmanH.MabiusL.Implicit adaptive control for a class of MIMO systems. IEEE Trans., Aerospace and Electronic Systems, September 1982, AES-18, 576–590.
16.
LimK. Y.EslamiM.Adaptive controller designs for robot manipulator systems using Lyapunov direct method. IEEE Trans., Automatic Control, December 1985, AC-30, 1229–1233.
17.
BalestrinoA.De MariaG.SciaviccoL.An adaptive model following control for robotic manipulators. Trans. ASME, J. Dynamic Systems, Measmt, Control, September 1983, 105, 143–151.
18.
DubowskyS.DesForgesD. T.The application of model reference adaptive control to robotic manipulators. Trans. ASME, J. Dynamic Systems, Measmt, Control, September 1979, 101(3), 193–200.
19.
HorowitzR.TomizukaM.An adaptive control scheme for mechanical manipulators—compensation of nonlinearity and decoupling control. ASME paper 80-WA/DSC-6.
20.
NicosiaS.TomeiP.Model reference adaptive control algorithms for industrial robots. Automatica, September 1984, 20, 635–644.
21.
AstromK. J.Theory and applications of adaptive control—a survey. Automatica, 1983, 19(5), 471–486.
22.
SeborgD. E.EdgarT. F.ShahS. L.Adaptive control strategies for process control: a survey. Am. Inst. Chem. Engrs. J., June 1986, 32(6), 881–913.
23.
HawkyardJ. B.JohnsonW.KirklandJ.AppletonE.Analysis for ring force and torque in ring rolling with some supporting experiments. Int. J. Mech. Sci., 1973, 15, 873–893.
24.
MamalisA. G.JohnsonW.HawkyardJ. B.On the pressure distribution between stock and rolls in ring rolling. J. Mech. Engng Sci., 1976, 18(4), 184–195.
25.
JohnsonW.NeedbamG.Experiments on ring rolling. Int. J. Mech. Sci., 1968, 10, 95–113.
26.
MamalisA. G.JohnsonW.Ring rolling processes. J. Engng Prod., 1978, 2, 145–159.
27.
LandauY. D.Adaptive control: the model reference approach, 1979 (Marcel Dekker, New York).
28.
DreinhoffP.KoppersU.WiegelsH.KoppR.Adaptive Prozeführung für das Ringwalzen. Stahl u. Eisen, 1986, 106(10), 567–570.
