Vibrations and impact forces of modified handle pneumatic hammer

• Autorzy: Majewski Tadeusz , Meraz Melo Marco , Tracz Jan , Ładyżyńska-Kozdraś Edyta , Estrada Quirino

Identyfikatory

DOI

10.12913/22998624/197407

• Języki publikacji: EN

Abstrakty

EN

The paper presents a dynamic model of a small electro-pneumatic percussive tool whose handle is elastically connected to the casing. The pneumatic force is defined as a function of the position of the piston and the striker. The Hertz model has been applied to the impact forces and given the conditions under which they exist. The differential equations define the movement of each part of the hammer. Their simulations show how the hammer parts vibrate, when the impacts occur, and how large the impact forces can be. The acceleration of the handle is determined and compared with the acceleration when the handle is part of the casing. The article proves that the hammer with a floating handle is better for the operator's protection.

Słowa kluczowe

EN

vibrations; impact hammer; impact forces; handle vibration; efficiency

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2025
• Tom: Vol. 19, no. 3
• Strony: 341--349
• Opis fizyczny: Bibliogr. 11 poz., fig.

Twórcy

autor

Majewski Tadeusz

• Tecnologico Nacional De Mexico, Instituto Tecnologico de Puebla, Av. Tecnologico 420, Col. Maravillas Puebla, Pue. C.P. 72220, Mexico
• Warsaw University of Technology, Wydzial Mechatroniki, Warszawa, ul. Swietego Boboli 8, 02-525 Warszawa, Poland

• https://orcid.org/0000-0001-9535-0027

autor

Meraz Melo Marco

• Tecnologico Nacional De Mexico, Instituto Tecnologico de Puebla, Av. Tecnologico 420, Col. Maravillas Puebla, Pue. C.P. 72220, Mexico

• https://orcid.org/0000-0003-1331-7595

autor

Tracz Jan

• Warsaw University of Technology, Wydzial Mechatroniki, Warszawa, ul. Swietego Boboli 8, 02-525 Warszawa, Poland

autor

Ładyżyńska-Kozdraś Edyta

• Warsaw University of Technology, Wydzial Mechatroniki, Warszawa, ul. Swietego Boboli 8, 02-525 Warszawa, Poland

• https://orcid.org/0000-0002-4014-6982

autor

Estrada Quirino

• Universidad Autónoma de Ciudad Juarez, Campus Ciudad Cuauhtemoc, Chihuahua, Mexico

Bibliografia

• 1. Herman T., Dobry M.W. Energy evaluation of protection effectiveness of anti-vibration gloves. International Journal of Occupational Safety and Ergonomics, 2017, 23(3), 414–423. https://doi.org/10.1080/10803548.2016.1233673.
• 2. PN-EN ISO 5349-2:2004.
• 3. https://www.ereplacementparts.com/makita-hr2511-rotary-hammer-parts-c-97_380_490.html.
• 4. Khulief Y.A., Shabana A.A. A continuous force model for the impact analysis of flexible multibody systems. Mechanism and Machine Theory, 1987, 22(3), 213–224. https://doi.org/10.1016/0094-114x(87)90004-8.
• 5. Babitsky V.I. Hand-held percussion machine as discrete non-linear converter. Journal of Sound and Vibration, 1998, 214(1), 165–182. https://doi.org/10.1006/jsvi.1998.1559.
• 6. Li F., Ma S. Analysis and experimental study of acceleration model for short interval and multiple impact equipment. Shock and Vibration, 2019, ID5139137. https://doi.org/10.1155/2019/5139137.
• 7. Rajalingham C., Rakheja S. Analysis of impact force variation during the collision of two bodies using a single-degree-of-freedom system model. Journal of Sound and Vibration, 2000, 229(4), 823–835.
• 8. Pfeiffer F., Locker Ch. Contacts in multibody systems. Journal of Applied Mathematics and Mechanics, 2000, 64(5), 773–782. https://doi.org/10.1016/S0021-8928(00)00107-6.
• 9. Auguściński A., Talaśka K., Wilczyński D. External dynamics of hand operated hydraulic hammer. Machine Dynamics Problems, 2008, 32(1), 7–13.
• 10. Zimmerman J., Majewski T., Rymuza Z. Modeling of the nanoindentation process of ultrathin films. International Journal of Material Research Zeitschrift fur Metallkunde, 2005, 96, 1296–1300.
• 11. Popov V.L. Contact mechanics and friction: physical principles and applications. Springer, Berlin 2010.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).