Haku
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Data analysis process of working hydraulics of small mobile machine
(2012)
- article
Changing work sequences and the operational environment makes the condition monitoring of mobile work machines more challenging compared with industrial systems. This sets special demands in regard to the analysis of the ...
Characterization of cracks formed in large flat-on-flat fretting contact
(2019-07)
- article
Fretting fatigue may lead to severe damage in machines. Adhesive material transfer spots in millimeter scale have previously been observed on fretted surfaces, which have been related to cracking. In this study, fretting-induced ...
Implementation of capability matchmaking software facilitating faster production system design and reconfiguration planning
(2019-10)
- article
Smart manufacturing calls for rapidly responding production systems which help the manufacturing companies to operate efficiently in a highly dynamic environment. Currently, the system design and reconfiguration planning ...
On the Kachanov-Rabotnov continuum damage model
(2020)
- article
In this paper two partially complementary formulations of the simple phenomeno- logical Kachanov-Rabotnov continuum damage constitutive model are presented. The models are based on a consistent thermodynamic formulation ...
Variable speed drive with hydraulic boost
(2019)
- article
This paper studies a variable speed drive with two hydraulic pump motors connected to an actuator. The torque load of the pump motors is reduced by connecting accumulators at different pressures to the inlets of the pump ...
Separating the impact of work environment and machine operation on harvester performance
(2020)
- article
In mechanized logging operations, interactions between the forest machines and their operators, forest resources and environmental conditions are multifold and not easily detected. However, increased computational resources ...
Digital valve system for ITER remote handling – Design and prototype testing
(2019-09)
- article
ITER-RH system is used to exchange the divertor’s 54 cassette assemblies in the vessel. Water hydraulics and servo valves are currently used in the task but concerns exist with robustness and availability of suitable ...
Servo valve endurance test for water-hydraulic systems in ITER-relevant conditions
(2019-09)
- article
ITER Divertor maintenance equipment operates in the vacuum vessel in elevated temperature and under considerable radiation load. The heavy Divertor assemblies are lifted and transported using servo valve systems, such as ...
Transient load simulation of forwarder rear frame
(2017)
- article
Landowners’ willingness to promote bioenergy production on wasteland − future impact on land use of cutaway peatlands
(2017-12-01)
- article
Landowners are the key players in bioenergy production on wasteland; such as cutaway peatlands. In this study, the landowner's interest to use cutaway peatlands for bioenergy production was investigated using a survey and ...