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Simulation of the Forwarder Dynamics
Technical Paper
1999-01-2783
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes the development of a virtual prototype of a log forwarder using ADAMS dynamic system simulation software. The mechanics, hydraulics, hydrostatic propelling system with control system, tire-road-interaction and system interaction was modeled by using ADAMS. Also the flexibility of the boom mechanism was modeled. The virtual model was then verified with several different tests on actual hardware.
This investigation concentrated on the simulation of forwarder dynamics, particularly in situations when the forwarder was moving. Firstly the virtual model performed a maneuver, in which the forwarder drove over small bump on the road at different speeds and loads. The same test was then performed with an actual forwarder, instrumented with acceleration sensors, placed on the bogie axles and a tachometer mounted on the propeller shaft to measure shaft rotational speed. Relatively good correspondence between measured and simulated results was achieved.
The validated virtual model was used in the design development of different alternative structural and mechanical improvements were evaluated. For example, function of different rotation restrictors between front- and rear chassis were tested.
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Authors
Topic
Citation
Hammarberg, T., Liukkula, M., and Handroos, H., "Simulation of the Forwarder Dynamics," SAE Technical Paper 1999-01-2783, 1999, https://doi.org/10.4271/1999-01-2783.Also In
References
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- Aki Mikkola Heikki Handroos Modelling and simulation of a hydraulically driven log crane Ninth Bath International Fluid Power Workshop - Fluid Power Systems University of Bath Great Britain 9-11 September 1996 431 443
- Arto Timperi Modern Engineering in the Development of Hydraulics and Control Systems for Forest Machines Tampere University of Technology 1997
- 1994
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