Effect of Zonal Hydraulics on Energy Consumption and Boom Structure of a Micro-Excavator
This paper investigates the effect of extra weight caused by the Direct Driven Hydraulics (DDH) in a micro-excavator. These projects are investigating the implementation of zonal or decentralized hydraulics for non-road mobile machinery (NRMM) and stationary industrial applications. The benefit of D...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-08-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/11/8/2088 |
| _version_ | 1818013272889098240 |
|---|---|
| author | Abinab Niraula Shuzhong Zhang Tatiana Minav Matti Pietola |
| author_facet | Abinab Niraula Shuzhong Zhang Tatiana Minav Matti Pietola |
| author_sort | Abinab Niraula |
| collection | DOAJ |
| description | This paper investigates the effect of extra weight caused by the Direct Driven Hydraulics (DDH) in a micro-excavator. These projects are investigating the implementation of zonal or decentralized hydraulics for non-road mobile machinery (NRMM) and stationary industrial applications. The benefit of DDH is the combination of electric and hydraulic technologies in a compact package compared to conventional hydraulics, which enables a reduction of potential leakage points, flexible tubing, and boosting of the system efficiency due to switching to direct pump control instead of a loss-generating conventional valve-based control. In order to demonstrate these benefits for the excavator case, this paper proposes a system model approach to assess and predict energy consumption of the zonal hydraulics approach implemented with DDH in various working cycles, complemented by a structural analysis. The finite element analysis utilized for this demonstrated that the extra weight and selected location of DDH units do not negatively affect the structure of the excavator. Simulation results demonstrated that the energy consumption is approximately 15% higher with extra weight added by the three DDH units. Although approximately 20% more regeneration energy is produced, taking into account the regeneration energy, the increases in energy consumption are about 12%. |
| first_indexed | 2024-04-14T06:31:08Z |
| format | Article |
| id | doaj.art-d63ce3a9deaf44ffb1055c4f081cd3ce |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T06:31:08Z |
| publishDate | 2018-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-d63ce3a9deaf44ffb1055c4f081cd3ce2022-12-22T02:07:37ZengMDPI AGEnergies1996-10732018-08-01118208810.3390/en11082088en11082088Effect of Zonal Hydraulics on Energy Consumption and Boom Structure of a Micro-ExcavatorAbinab Niraula0Shuzhong Zhang1Tatiana Minav2Matti Pietola3Department of Mechanical Engineering, School of Engineering, Aalto University, 14400 Espoo, FinlandSchool of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou 350118, ChinaDepartment of Mechanical Engineering, School of Engineering, Aalto University, 14400 Espoo, FinlandDepartment of Mechanical Engineering, School of Engineering, Aalto University, 14400 Espoo, FinlandThis paper investigates the effect of extra weight caused by the Direct Driven Hydraulics (DDH) in a micro-excavator. These projects are investigating the implementation of zonal or decentralized hydraulics for non-road mobile machinery (NRMM) and stationary industrial applications. The benefit of DDH is the combination of electric and hydraulic technologies in a compact package compared to conventional hydraulics, which enables a reduction of potential leakage points, flexible tubing, and boosting of the system efficiency due to switching to direct pump control instead of a loss-generating conventional valve-based control. In order to demonstrate these benefits for the excavator case, this paper proposes a system model approach to assess and predict energy consumption of the zonal hydraulics approach implemented with DDH in various working cycles, complemented by a structural analysis. The finite element analysis utilized for this demonstrated that the extra weight and selected location of DDH units do not negatively affect the structure of the excavator. Simulation results demonstrated that the energy consumption is approximately 15% higher with extra weight added by the three DDH units. Although approximately 20% more regeneration energy is produced, taking into account the regeneration energy, the increases in energy consumption are about 12%.http://www.mdpi.com/1996-1073/11/8/2088hydraulic excavatorhydraulic driveselectric drivesefficiencylosseszonal hydraulicsdirect driven hydraulicsoff-road mobile machineryenergy consumptionfinite element analysis |
| spellingShingle | Abinab Niraula Shuzhong Zhang Tatiana Minav Matti Pietola Effect of Zonal Hydraulics on Energy Consumption and Boom Structure of a Micro-Excavator Energies hydraulic excavator hydraulic drives electric drives efficiency losses zonal hydraulics direct driven hydraulics off-road mobile machinery energy consumption finite element analysis |
| title | Effect of Zonal Hydraulics on Energy Consumption and Boom Structure of a Micro-Excavator |
| title_full | Effect of Zonal Hydraulics on Energy Consumption and Boom Structure of a Micro-Excavator |
| title_fullStr | Effect of Zonal Hydraulics on Energy Consumption and Boom Structure of a Micro-Excavator |
| title_full_unstemmed | Effect of Zonal Hydraulics on Energy Consumption and Boom Structure of a Micro-Excavator |
| title_short | Effect of Zonal Hydraulics on Energy Consumption and Boom Structure of a Micro-Excavator |
| title_sort | effect of zonal hydraulics on energy consumption and boom structure of a micro excavator |
| topic | hydraulic excavator hydraulic drives electric drives efficiency losses zonal hydraulics direct driven hydraulics off-road mobile machinery energy consumption finite element analysis |
| url | http://www.mdpi.com/1996-1073/11/8/2088 |
| work_keys_str_mv | AT abinabniraula effectofzonalhydraulicsonenergyconsumptionandboomstructureofamicroexcavator AT shuzhongzhang effectofzonalhydraulicsonenergyconsumptionandboomstructureofamicroexcavator AT tatianaminav effectofzonalhydraulicsonenergyconsumptionandboomstructureofamicroexcavator AT mattipietola effectofzonalhydraulicsonenergyconsumptionandboomstructureofamicroexcavator |