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SIMULATION INVESTIGATIONS OF ROADHEADER DYNAMICS FOR AUTOMATIC CONTROL OF CUTTING PROCESS
Abstract
A starting point for roadheader robotisation (understood as a fully autonomous machine) is to automate the cutting process, which is the basic working process carried out by such machines. In case of boomпїЅtype roadheaders, it consists in automatic control of the movement of cutting heads to ensure that the face surface can be worked with optimum process parameters. This will guarantee high drilling efficiency (drilling advancement) and lower energy consumption, reduced dynamic loads and elimination of overloads. The article presents selected results of simulation investigations of dynamics of a boomпїЅtype roadheader. In the simulation investigations were employed experimentally verified mathematical models of a boomпїЅtype roadheader body and the working process carried out by it. Computer simulations allowed to establish a dynamic state of a roadheader when performing the cutting process in different conditions. The association of cutting process parametersпїЅ values was determined on their basis, for which it is possible to reduce a roadheader's dynamic loads and energy consumption of cutting and to maximise efficiency.A starting point for roadheader robotisation (understood as a fully autonomous machine) is to automate the cutting process, which is the basic working process carried out by such machines. In case of boomпїЅtype roadheaders, it consists in automatic control of the movement of cutting heads to ensure that the face surface can be worked with optimum process parameters. This will guarantee high drilling efficiency (drilling advancement) and lower energy consumption, reduced dynamic loads and elimination of overloads. The article presents selected results of simulation investigations of dynamics of a boomпїЅtype roadheader. In the simulation investigations were employed experimentally verified mathematical models of a boomпїЅtype roadheader body and the working process carried out by it. Computer simulations allowed to establish a dynamic state of a roadheader when performing the cutting process in different conditions. The association of cutting process parametersпїЅ values was determined on their basis, for which it is possible to reduce a roadheader's dynamic loads and energy consumption of cutting and to maximise efficiency.
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References15
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