Analysis of Vibration Transmission in Vibration Isolation Systems of Impact Tools

• Autorzy: Śledziński M.
• Konferencja: French-Polish Seminar of Mechanics (18 ; 31.05.2010 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

The paper presents an analysis of transmission of vibration from an impact tool to the operator. The multiplicity of excess of the vibration acceptable level on the handle was 7.78, and the maximum permissible working time did not exceed 3.7 min, which required the use of a vibration isolation system. A damper structure was worked out with the use of the mathematical model of the tool under analysis. Results of the measurement of vibration before and after the vibration isolation was presented as a spectral analysis. The experimental verification has shown substantial effectiveness of the proposed vibration isolator structure that reduced the multiplicity of excess of the vibration acceptable level to the value of 0.87, and an extension of the maximum permissible working time up to 627 min. The gain was a reduction in the transmission of vibration to the operator's hand-arm system without lowering of the effectivess of the soil compacting process.

Słowa kluczowe

EN

vibration transmission; vibration isolation system; impact tool; damper structure; mathematical model; spectral analysis

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Research
• Rocznik: 2010
• Tom: Vol. 34, No. 1
• Strony: 110--117
• Opis fizyczny: Bibliogr. 9 poz., il., wykr.

Twórcy

autor

Śledziński M.

• Poznań University of Technology. Machine Design Fundamentals,

Bibliografia

• Cempel, Cz., 1989, Applied Vibro-Acoustics (original title in Polish: Wibroakustyka stosowana), PWN, Warszawa.
• 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.
• Meler, 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.
• Meltzer, G., Melzig-Thiel, R., Schatte, M., 1980, Ein mathematisches - Schwingungsmodell für das menschliche Hand-Arm-System, Maschinenbautechnik, 29, Nr 2, 54-58.
• Śledziński, M., 2005, Modelling of Design Properties of Vibration Isolator in Pneumatic Compactors (original title in Polish: Kształtowanie cech konstrukcyjnych tłumika drgań ubijaka pneumatycznego, PhD thesis, Politechnika Poznańska, Wydział Maszyn Roboczych i Transportu, Poznań (manuscript).
• Śledziński, M., 2006, Modelling of Dynamic Features of the Vibration Isolator - Impact Tool - Soil System, Machine Dynamics Problems, 30, 4, 152-159.
• Uzarowicz, A., 1957, Hand pneumatic tools (original title in Polish: Przenośne przyrządy pneumatyczne), PWT, Warszawa.
• http://inventors.about.com.