Vibrations and impact forces of modified handle pneumatic hammer
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1
Tecnologico Nacional De Mexico Instituto Tecnologico de Puebla Av. Tecnologico 420 Col. Maravillas Puebla, Pue. C.P. 72220, Mexico
2
Warsaw University of Technology Wydzial Mechatroniki Warszawa, ul. Swietego Boboli 8, 02-525 Warszawa, Poland
3
Universidad Autónoma de Ciudad Juarez, Campus Ciudad Cuauhtemoc, Chihuahua, Mexico
Corresponding author
Tadeusz Majewski
Tecnologico Nacional De Mexico Instituto Tecnologico de Puebla Av. Tecnologico 420 Col. Maravillas Puebla, Pue. C.P. 72220, Mexico
Adv. Sci. Technol. Res. J. 2025; 19(3):341-349
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ABSTRACT
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.