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Validation of a co-simulation approach for hydraulic percussion units applied to a hydraulic hammer
Linköping University, Department of Management and Engineering, Solid Mechanics. Linköping University, Faculty of Science & Engineering. Epiroc, Sweden.
Linköping University, Department of Management and Engineering, Solid Mechanics. Linköping University, Faculty of Science & Engineering.
Dynamore Nord AB, Brigadgatan 5, S-58758 Linkoping, Sweden.
Dynamore Nord AB, Brigadgatan 5, S-58758 Linkoping, Sweden.
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2019 (English)In: Advances in Engineering Software, ISSN 0965-9978, E-ISSN 1873-5339, Vol. 131, p. 102-115Article in journal (Refereed) Published
Abstract [en]

In this study, a previously developed co-simulation approach has been adopted to simulate the responses of an existing hydraulic hammer product. This approach is based on a 1D system model representing the fluid components and a 3D finite element model representing the structural parts of the hydraulic hammer. The simulation model was validated against four experiments with different running conditions. The corresponding set-ups were analysed using the co-simulation method in order to evaluate the overall responses. A parameter study was also performed involving the working pressure and the restrictor diameter, with the objective to validate that a parameter change in the simulation model will affect the input and output power in the same direction as in the experiments. The experimental responses used in the validation were time history data of fluid pressure, component position and acceleration, and structural stresses. The experiments result in high frequency and high amplitude excitations of the hydraulic hammer and thus require a model with a high resolution of the model dynamics. The conclusion of the validation is that the simulation model is able to replicate the experimental responses with high accuracy including the high frequency dynamics. The favourable outcome of the validation makes the described co-simulation approach promising as an efficient tool for a wide range of other applications where short time duration mechanisms need to be studied.

Place, publisher, year, edition, pages
ELSEVIER SCI LTD , 2019. Vol. 131, p. 102-115
Keywords [en]
Co-simulation; Fluid-structure coupling; System simulation; FEM; Experiments; Fluid power machinery
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:liu:diva-156375DOI: 10.1016/j.advengsoft.2018.12.001ISI: 000462766100009OAI: oai:DiVA.org:liu-156375DiVA, id: diva2:1305819
Note

Funding Agencies|Epiroc Hydraulic Attachment Tools Division

Available from: 2019-04-18 Created: 2019-04-18 Last updated: 2019-04-18

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Andersson, HåkanSimonsson, KjellLeidermark, Daniel
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