Wangyong He's research while affiliated with China University of Geosciences and other places

Publications (13)

Article
This paper presents an adaptive compensation control strategy for packet losses, time delays, and exogenous disturbances in a networked control system. The structure consists of five parts: a plant, a Luenberger observer, an equivalent-input-disturbance (EID) estimator, an adaptive model predictive controller (AMPC), and a network. The AMPC in the...
Article
In a blast furnace (BF), faults are difficult to be diagnosed because of the severe environment inside a BF. Most proposed methods for BF fault diagnosis just diagnose states of a BF by short-time-scale data. However, the probability of faults is also related to the long-time-scale running state of a BF. This paper presents a two-layer fault diagno...
Article
Full-text available
In this paper, we mainly study the application of a multi-objective optimization algorithm based on the black hole algorithm in motor optimization. Using the combination of global search and local search, the continuous search area is better. The random search method is used in the global search, and a momentum gradient method is used in the local...
Chapter
Moment of inertia is an essential parameter that has to be identified for satisfactory control performance for a permanent magnet synchronous motor (PMSM). In this paper, an on-line identification method for moment of inertia is presented, featuring high accuracy and short convergence time. A model reference adaptive system (MRAS) consists of three...
Article
Full-text available
Hand pose estimation is a critical technology of computer vision and human-computer interaction. Deep-learning methods require a considerable amount of tagged data. Accordingly, numerous labeled training data are required. This paper aims to generate depth hand images. Given a ground-truth 3D hand pose, the developed method can generate depth hand...
Preprint
Hand pose estimation is a critical technology of computer vision and human-computer interaction. Deep learning methods require a considerable amount of tagged data. Accordingly, numerous labeled training data are required. This paper aims to generate depth hand images. Given a ground truth 3D hand pose, the developed method can generate depth hand...
Article
Full-text available
This paper proposes a new multiobjective evolutionary algorithm based on the black hole algorithm with a new individual density assessment (cell density), called “adaptive multiobjective black hole algorithm” (AMOBH). Cell density has the characteristics of low computational complexity and maintains a good balance of convergence and diversity of th...
Article
Full-text available
Percussive-rotary drilling is an effective method for the hard rock drilling. As hydraulic and pneumatic hammers have many problems especially in the deep core drilling, a new electromagnetic hammer driven by a tube linear motor is introduced in this study. The study mainly covers the mechanical structure and electromagnetic design of the hammer, r...
Article
Full-text available
Selective micro heat sintering (SMHS)-type 3D printing technology is a widely applied method in rapid prototyping, which uses an electric heating component to sinter non-metallic powder. It requires precise control of the heating component's energy and its sintering time. Temperature is one of the key factors that affect the forming quality of fuse...
Article
In the present work, a down-to-the-hole electric hammer driven by linear motor is reported for drilling engineering. It differs from the common hydraulic or pneumatic hammers in that it can be applied to some special occasions without circulating medium due to its independence of the drilling fluid. The impact stress caused by the reciprocating mot...

Citations

... In this work, the local with the momentum gradient technique is used; on the other hand, the global search is used with the random search approach. Furthermore, to make the optimization effect global, a new file management method is used [60]. The proposed method got better results compared to other methods. ...
... The AC PMSM servo control system is widely used in high precision and high performance applications. However, the dynamic performance of the servo system is affected by internal motor parameters, external disturbance torque and some non-linear factors [1] . Since the moment of inertia has a great influence on the control performance of the servo system, it is very important to quickly and accurately identify the moment of inertia of the entire servo system. ...
... In [30], they proposed a data-driven approach to generate depth hand images given ground-truth hand poses using a generative model. The style transfer is applied to generate the image with the style equivalent to the style image and the content from the content image. ...
... Then, The Shannon entropy used to determine the evolutionary strategies and status. Finally, to estimate the robustness of solutions by combining the cell density with dominance strength evaluation [49]. ...
... e mathematical modeling of the DTH hammer is mainly based on a one-dimensional gas flow equation of state, energy conservation equation, continuous equation in the front and rear chambers, and piston motion differential equation [23][24][25]. e piston movement distance can be calculated by selecting the time step, and the state parameters in each time step can be regarded as those in a quasi-static process ( Figure 4). ...
... This paper is aimed to design the structure of electromagnetic hammer to meet drilling requirements, the pipe limitation and electric-mechanic requests. For example, the structure design must consider the request of structural strength and fatigue life [11]. ...