Abstract
This paper mainly addresses the issue of 360 MN extrusion machine and focuses on the stabilization control of main table attitude. We will first introduce the problem and then model the extrusion machine. As the machine is a multi-input multioutput (MIMO) and strong coupling system, it is challenging to apply existing control theory to design a controller to stabilize the main table attitude. Motivated by recent research in the field of multiagent systems, we design a consensus control protocol for our system and derive our convergence conditions based directly on Routh stability criterion. The advantages of the design are also demonstrated by numerical simulation.
Highlights
Thick-walled seamless tubes are extremely important to the development of some heavy industries
With the idea borrowed from the multiagent and consensus control which was briefly reviewed in Appendix B, we try to design simple yet effective control strategies for our extrusion machine
We can regard the six cylinders as six agents, and they constitute a multiagent system, the topology of which is the physical constraint of the main table
Summary
Thick-walled seamless tubes are extremely important to the development of some heavy industries. Tibbetts and Wen put forward that the complex material extrusion process can be viewed as three stages including Material Response, Thermomechanical Response, and Press Response in [1]. They developed a model of the extrusion process for real-time control and figured out the optimization of extrusion control.
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