A Combined Variable Displacement–Digital Cylinder Hydraulic Drive for Large Presses With High Operating Frequencies

Messner, Florian; Scheidl, Rudolf; Haas, Rainer; Gattringer, Hubert; Springer, Klemens

doi:10.1115/1.4033105

Cited by 3 publications

(3 citation statements)

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“…Parallel digital hydraulic pumps, cylinders, and motors have been proven to improve system efficiency, as evidenced by various scientific publications [20]- [22]. One important example is the sizing press drive, which combines analogue primary pump control with a parallel digital hydraulic cylinder system [23]. This integration of technologies enhances the overall performance and efficiency of the system.…”

Section: Parallel Digital Hydraulic Cylinders Parallel Digital Hydrau...mentioning

confidence: 99%

Digital Hydraulic Technology: Applications, Challenges, and Future Direction

Sciatti,

Tamburrano,

Distaso

et al. 2023

J. Phys.: Conf. Ser.

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Digital hydraulic technology has emerged as a promising alternative to conventional hydraulic systems, offering several advantages such as improved energy efficiency, more precise control, and reduced complexity. In recent years, digital hydraulic technology applications have been widely researched in various engineering sectors, including aerospace, biomedical and industrial. The aim of this paper is to provide an overview of the recent advancements in digital hydraulic technology, focusing on the various applications and their benefits. The paper begins by introducing the two different branches of this innovative technology. Subsequently, it presents an overview of digital hydraulic technology applications, highlighting their specific advantages, particularly in biomedical, industrial and aeronautical sectors, when compared to conventional hydraulic technology. Finally, the paper addresses the challenges and limitations associated with digital hydraulic technology and discusses potential areas for future research and development.

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Section: Parallel Digital Hydraulic Cylinders Parallel Digital Hydrau...mentioning

confidence: 99%

Digital Hydraulic Technology: Applications, Challenges, and Future Direction

Sciatti,

Tamburrano,

Distaso

et al. 2023

J. Phys.: Conf. Ser.

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“…Manufacturing relies heavily on hydraulic forming technology [1]. Numerous types of presses have been created since Bramah created the hydraulic press in 1795 for a wide range of uses [2]. Hydraulic presses are frequently used in a variety of forming operations in industrial applications because of their advantages of having a high power-to-mass ratio, high rigidity, and high load capability [1].…”

Section: Introductionmentioning

confidence: 99%

Energy Saving Implementation in Hydraulic Press Using Industrial Internet of Things (IIoT)

Sumit

Gupta

Juneja³

et al. 2022

Electronics

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With the growing cost of electrical energy, the necessity of energy-saving implementation in industries based on energy audits has become a major focus area. Energy audit results indicate energy-saving potential in an application and require the physical presence of the auditor’s team for monitoring and analyzing the energy consumption data. The use of Industrial Internet of Things (IIoT) for remote data monitoring and analysis is growing and new industrial applications based on IIoT are being developed and used by various industrial sectors. Possibilities of a mixed method of physical and remote energy audit using IIoT in industrial applications and its advantages as proposed in this research work needs to be explored. Existing hydraulic press machines running with direct online starter (DOL) can be run with variable speed drive (VSD) for energy saving but this requires an extensive energy audit. Key electrical and operational parameters of the hydraulic pump motor were monitored and analyzed remotely using IIoT in this research work by operating the hydraulic press with DOL and VSD motor control methods one by one. The input power factor of the hydraulic pump motor showed an improvement from 0.79 in DOL control to 0.9 in VSD control at different motor loads. The hydraulic pump motor starting current showed a reduction of 84% with VSD control. The hydraulic pump motor’s continuous current was reduced by 40% and 65% during the loading and unloading cycle, respectively, with VSD control. Electrical consumption was reduced by 24% as a result of operating the hydraulic pump motor at 35 Hz with VSD control without impacting the performance of the hydraulic press. These results indicated more efficient control by changing to VSD control in comparison with DOL control. A combination of physical and remote energy audits as performed in this research work using the proposed IIoT framework can be utilized for implementing energy saving in hydraulic presses thus motivating industries to adopt available more energy-efficient technologies at a faster pace.

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“…Parallel pump, cylinder, and accumulator technologies allow a better efficiency, which has been demonstrated in several published examples. An example is a sizing press drive, which actually is a mixture of an analogue primary pump control and a parallel cylinder system [10].…”

Section: Introduction -A Brief Of Digital Fluid Controlmentioning

confidence: 99%

Digital Fluid Technologies for the Steel Industry

Scheidl

Winkler

Kogler

et al. 2016

Berg Huettenmaenn Monatsh

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Digital fluid systems are controlled solely by onoff valves, in contrast to analogue fluid systems which use continuously adjustable valves. Many digital fluid systems have been in practical use for some decades. The steel industry relies on several fluid technologies. Apart from the handling of the liquid steel, several other fluid processes exist to fulfill indispensable functions; examples include cooling, motion control, torch cutting, descaling, and lubricating. Many of these processes need better control concerning precision, dynamics, resource demand, reliability, and environmental impact or must offer additional functionalities for use in factories of the future. In several cases digital fluid systems are the better solutions. In this paper this is demonstrated by four examples, ranging from proven simple solutions and concepts going currently into industrial application to promising concepts for the future.

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A Combined Variable Displacement–Digital Cylinder Hydraulic Drive for Large Presses With High Operating Frequencies

Cited by 3 publications

References 1 publication

Digital Hydraulic Technology: Applications, Challenges, and Future Direction

Digital Hydraulic Technology: Applications, Challenges, and Future Direction

Energy Saving Implementation in Hydraulic Press Using Industrial Internet of Things (IIoT)

Digital Fluid Technologies for the Steel Industry

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