قائمة الطعام
In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer-aided structure design and performance optimization method for cutting head. We compile the calculation code and realize the reading and storing of relevant data through Excel.
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In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer-aided structure design and performance optimization method for cutting head.
WhatsApp: +86 18221755073
In order to study the dynamic characteristics of cutting head and cantilever system, a nonlinear dynamic model with a 13 degrees of freedom (13-DOF) lateral torsional coupled cutting head-rotor-bearing system (CHRBS) is established. The nonlinear coupled factors of spline clearance and bearing contact force are mainly considered, the dynamic analysis of …
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Semantic Scholar extracted view of "DESIGNING ROADHEADER CUTTING HEADS" by K. Hurt et al. ... The design method for cutting head with cutting lines and cutting tools by Non-uniform rational B-spline (Nurbs) is achieved in OpenGL to improve design efficiency and predict the cutting performance of a cutting head.
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The article presents selected results of tests carried out in a semi–industrial scale, on a roadheader R–130, concerning behaviour of an innovative solution of system for automatic control of boom–type roadheader cutting heads' movements.
WhatsApp: +86 18221755073
The cutting head is the core working mechanism of the roadheader for coal-rock materials cutting. The efficient and high performance design of cutting head is the key to improve the road head ...
WhatsApp: +86 18221755073
In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer-aided structure design and performance optimization method for cutting head. We...
WhatsApp: +86 18221755073
The cutting head is the core working mechanism of the roadheader for coal-rock materials cutting. The efficient and high performance design of cutting head is the key to …
WhatsApp: +86 18221755073
In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer-aided structure design and performance optimization method for cutting head. We …
WhatsApp: +86 18221755073
In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer-aided structure design and performance optimization method for …
WhatsApp: +86 18221755073
In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer-aided structure design and performance optimization method for cutting head. ... Based on the method, we complete the design of EBZ220 roadheader cutting head. We show that our method can realize the fast and efficient design of cutting ...
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At the early twenty-first century, Tiryaki et al. 29 develop a new software for the design of cutting head for roadheader, which takes into account the equation of cutting force coefficient in the ...
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To realize the precision of cross-section shaping, iterative learning control (ILC) is studied in the trajectory tracking strategy of roadheader cutting head in this paper. The dynamic model of roadheader cutting arm is established, and then an appropriate PD-type...
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When the cutting head of the roadheader is working, the cutting section of the cutter is in the shape of a crescent moon. ... The test-bed is mainly composed of roadheader model prototype, simulated coal wall, and roadway surface profile measurement platform. The prototype of the roadheader model is shown in Figure 12.
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In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer‐aided structure design and performance optimization method for cutting head. We...
WhatsApp: +86 18221755073
Computer-aided efficient design and performance optimization of cutting head for roadheader Xin Jin, Guochao Zhao, Lijuan Zhao, Guocong Lin School of Mechanical Engineering, Liaoning Technical University, Fuxin 123000, China. Corresponding author: Xin Jin, tel numbers:, e-mail address:jx032615@163 Abstract: The cutting head is the core …
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Roadheader performance and related parameters are reviewed and their effects on the production and advance rate are discussed. Among the parameters influencing the machine performance, the most important one is the cutterhead design which …
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The cutting head is the core working mechanism of the roadheader for coal-rock materials cutting. The efficient and high performance design of cutting head is the key to improve the road head digging and mining technology. In this paper, based on cutting head design theory and virtual prototype tech …
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Develop the longitudinal cutting head of roadheader parametric modeling interface based on Visual C++ language, to achieve front interface input, and the front desk to call ANSYS …
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Vibrations of the roadheader cutting head were measured by means of two methods during the cutting performed on the test set-up created at the Faculty of Mining and Geology at the Silesian ...
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Develop the longitudinal cutting head of roadheader parametric modeling interface based on Visual C++ language, to achieve front interface input, and the front desk to call ANSYS system. Achieve the relevant calculation parameters of the cutting head of roadheader input directly in the interface of the system, and anti-call input the
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Full-scale laboratory simulation of numerous roadheader cutting heads of actual size was carried out. Optimum tilt angle for corner cutting picks was approximately equal to …
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Experimental results demonstrated that the proposed method outperforms existing ones with stronger robustness and higher accuracy, and was improved with skipping and multiple matching penalties to complete the multiple mapping and to skip existing outliers in sequences. In this paper, a shape matching algorithm is presented to perform the cutting head recognition for …
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Roadheader performance and related parameters are reviewed and their effects on the production and advance rate are discussed. Among the parameters influencing the machine performance, …
WhatsApp: +86 18221755073
During the excavation of a roadway, the drilling speed of a cutting head is low and the cutting load is excessive. To solve these problems, a spatial mechanical model of a pick was established. Then, the drilling process and rock breaking mechanism of the pick were analyzed using the numerical simulation software LS-DYNA. By investigating the relationship between …
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An adaptive control method to improve the cutting head speed of roadheaders using multisensor information is proposed, so as to solve the problems of low cutting efficiency and low intelligence of roadheaders during underground tunnelling. The operation of a roadheader is analysed, and a control strategy for its cutting head speed is proposed.
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The mode of roadheader operation, geometry of the cutting head, and the boom carrying it make the motion of a pick on a roadheader cutting head to be more complex in nature than that of a pick on a shearer drum. Force (kN) or Torque (kNm) 100 Axial Force Variance = 3.4074 80 60 Horizontal Force Variance = 2.341 40 Shaft Torque Variance = 0.1854 ...
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In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer-aided structure design and performance optimization method for cutting head.
WhatsApp: +86 18221755073
Full-scale laboratory simulation of numerous roadheader cutting heads of actual size was carried out. Optimum tilt angle for corner cutting picks was approximately equal to half breakout angle of rock. Corner cutting picks behaved like gauge tools after this optimum tilt angle.
WhatsApp: +86 18221755073
The article presents selected results of tests carried out in a semi–industrial scale, on a roadheader R–130, concerning behaviour of an innovative solution of system for automatic control of boom–type roadheader cutting heads' movements.
WhatsApp: +86 18221755073
Considering that the trajectory of the cutting head of the longitudinal axis roadheader directly affects the surface morphology of the roadway, the formation mechanism of the outer profile of the ...
WhatsApp: +86 18221755073
In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer-aided structure design and performance optimization …
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