Identification and Optimization of Design Properties of Dampers in Pneumatic Tools

• Autorzy: Śledziński M.
• Języki publikacji: EN

Abstrakty

EN

The study identifies the level of vibration activity in an impact tool for soil compaction. The subject of the study was a hand operated pneumatic tool, one that is currently manufactured and used in Poland. The displacements of the tool handle which characterize the level of vibration transmitted from the tool to the operator's hand-arm-system were measured. Experimental tests were carried out on the vibration isolation system with the aim to reduce the exposure of operators to vibration and their risk of vibration disease. The aim of the analysis was to optimize the design features of the damper for the choice of stiffness of the elastic system that minimizes the level of vibration transmitted from the tool to the operator. The vibration isolation system was tested at a measuring stand equipped with a hydraulic pulsator with a control system enabling simulation of a working cycle for the soil being compacted. It was possible to change the kinematic parameters of the working cycle within a wide range of amplitudes and frequencies, using a measuring set. Elastic systems for vibration isolators with different stiffness parameters were made and tested.

Słowa kluczowe

EN

pneumatic tool; impact tool; soil compaction; vibration isolation

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Research
• Rocznik: 2011
• Tom: Vol. 35, No. 4
• Strony: 111--117
• Opis fizyczny: Bibliogr. 5 poz., wykr.

Twórcy

autor

Śledziński M.

• Poznan University of Technology. Chair of Machine Design Fundamentals,

Bibliografia

• Cempel, Cz., 1989, Applied Vibro-Acoustics (original title in Polish: Wibroakustyka stosowana), PWN Warszawa 1989.
• Dobry, M. W., 1982, The Dynamics and Effectiveness of Constant Reaction Force Vibration Isolators Used in Impact Tools (original title in Polish: Dynamika i skuteczność wibroizolatora o stałej sile oddziaływania zastosowanego do ręcznych narzędzi udarowych), PhD thesis, Politechnika Poznańska, Poznań.
• Engel, Z., 1993, Environmental Protection Against Vibration and Noise (original title in Polish: Ochrona Środowiska przed drganiami i hałasem), PWN Warszawa.
• Meier, F., Śledziński, M., 2005, Modelling of Vibration Isolators in Pneumatic Impact Tools for Soil Compacting (original title in Polish: Modelowanie wibroizolatorów udarowych narzędzi pneumatycznych do zagęszczania gruntu), 15th Conference on Methods and Tools of Computer Aided Design, Politechnika Warszawska.
• Śledziński, M., 2006, Modelling of Dynamic Features of the Vibration Isolator-Impact Tool-Soil System, Machine Dynamics Problems, 30, 4, 152-159.