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Deep cone thickener control problem is a key point of Tailings paste fill (TSF). This paper presents a new method to extract inherent and practical parameters of the thickener, and determine control strategy based on thickening process data mining. Bypassing difficulty in deep cone thickener modeling, the proposed method could obtain practical control rules, also has good adaptability to different...
The DSVSI X̄ char has been explored extensively by many researchers because its strong ability to detect small and moderate mean shifts. Most researchers are investigating under the assumption of known process parameters. In practice, process parameters are rarely unknown and they need to be estimated from an in-control historical Phase-I dataset. Therefore, in this paper we consider the estimated...
The traditional strategies of loop path selection like Z-path strategy will simplify the structure of loops and limit the iteration of loops to make the process of paths easy. But these strategies will lead to imprecise problems and hamper further improvement of the coverage scope, because the incompletely unfolding of loops usually ignores many detailed paths. To solve above problems, this paper...
Conventional Proportional Integral Derivative (PID) control is often used in present industrial field. Because the control parameters are fixed, the tuning results are difficult to meet the demands and the system is unstable or even out of control. In order to solve these problems, fuzzy control technique is presented to meet the demands of intelligent controlling. In this paper, Matlab is used to...
To improve the quality of the self-lubricating spherical plain bearing, a new technology of Two-way neck forming process for the manufacture of the self-lubricating spherical plain bearing was brought out. The shape of the bearing out ring blank was optimized by the parametric finite element method to minimize the necking force in the bearing neck forming process. The two-way necking die was designed...
In tension control system for winding machine, motor sometime works under minus load circumstance, in which electromagnetic torque acts as drive, but its direction is opposite with the rotary direction of motor because of load torque. In this paper, the minus load circumstance of motor is analyzed, and a minus load model of tension control system for winding machine is built. A novel idea of improved...
In this paper, an adaptive model predictive control (MPC) weight coefficient methodology is proposed, and a stable output multi-variables zone(or range) control is implemented to guarantee the robustness of controlled process systems and the flexibility of manipulated variables. The weighted slack coefficients terms (WSCT) are added with nominal weight coefficients. The WSCT are adapted according...
As the insufficiency of artificial methods for silkworm incubation, a new real-time monitoring system based on pre-evaluation compensation with gain self-adaptive control designed for silkworm incubation is introduced in this paper. The system enables silkworm regularly and automatic transposition for a 360-degree, and has light, temperature, wet-precise control. It also manages the sales process...
Various methods of multimode control are adopted more and more widely to improve the performance of control systems. The problem of smooth switching of different controllers is the key in application of multimode control. This paper focuses on the unsteady problem at switching point of controllers in multimode control system. The concept of smooth switching in process of switching is proposed. And...
Recently, ballistic missiles, in particular, Intercontinental ballistic missile (ICBM), with their high speed and high maneuverability, have posed great challenges for traditional intercepting techniques and methods. Despite the promising prospect of a new method, head-pursuit (HP) guidance method, there still exist problems that need to be solved. To address these problems, this paper, basing on...
Judgement matrix is the comparison result of the decision-makerspsila preference information between pairwise alternatives (or attributes), and itpsilas the base of decision research. For this, an overview of six different forms of pairwise comparison matrices and the group decision-making methods based on these matrices are introduced, and further research directions are discussed in detail.
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