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Evaluation of a Programmable Hydraulic Valve for Drill Rig Applications
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems.
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The increase of intelligent systems can be seen in every industry. Integrated sensors and processors are used with internal control systems to create better performance for mobile hydraulic applications.

The report describes how an evaluation was made to see if the productivity of a drill rig could be increased. This was done by implementing a programmable hydraulic valve to control the hydraulic drilling functions. The productivity would be increased by reducing the downtime due to jamming in the drill hole. Jamming occur when the system does not compensate for changes in rock conditions. By conducting a series of tests in a controlled environment with simulated loads, the response time of the CMA system and original system could be determined and compared. The CMA system had a response time that was 60-64% faster than the original system.

Two different implementations of a controller was tested. Ziegler-Nichols method was used to get the initial value of the PI parameters. The controller that was implemented onboard the valve’s CPU was considered more successfull to reduce jamming.

A drill test was conducted to ensure that the programmable valve could handle a drilling procedure with the controller that was implemented onboard the valve’s CPU. The valve handled the drilling procedure well.

Place, publisher, year, edition, pages
2018. , p. 82
Keywords [en]
Hydraulic valve, CAN, Drill rig, Rock drill, Blast hole drilling, Time delays, Ziegler-Nichols, PI-control
National Category
Control Engineering Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-148675ISRN: LIU-IEI-TEK-A-18/03026-SEOAI: oai:DiVA.org:liu-148675DiVA, id: diva2:1219375
External cooperation
Epiroc
Subject / course
Electrical Engineering
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Available from: 2018-06-25 Created: 2018-06-15 Last updated: 2018-06-25Bibliographically approved

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Evaluation of a Programmable Hydraulic Valve for Drill Rig Applications(12779 kB)14 downloads
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Type fulltextMimetype application/pdf

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CiteExportLink to record
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