37. Methodology for hand-tool vibration analysis using bond graph

Darwin Ruiz1, Juan Galvis2, Roque J. Hernández3, Eduardo E. Zurek4

1, 2, 3Materials, Processes and Design Research Group (GIMYP), Mechanical Engineering Department,
Universidad del Norte, Km 5 Antigua Vía Puerto Colombia, P. O. 1569, Barranquilla, Colombia

4Robotics and Intelligent Systems Research Group, Systems Engineering Department,
Universidad del Norte, Km 5 Antigua Vía Puerto Colombia, P. O. 1569, Barranquilla, Colombia

3Corresponding author

E-mail: 1darwinruizbarraza@hotmail.com, 2cjgalvis@uninorte.edu.co, 3roqherna@uninorte.edu.co, 4ezurek@uninorte.edu.co

(Received 2 November 2013; received in revised form 6 November 2013; accepted 11 November 2013)

Abstract. This paper presents an efficient and easy methodology for modeling the vibrational behavior of common portable tools using as example a hand-driller. The work described in this paper uses a Hand-Tool model previously developed by the authors and couples it with different Hand‑Arm‑System (HAS) in order to evaluate which one reproduces the most realistic vibrational behavior. Although proposed for hand-tools, it can be extended for any kind of tool that produces vibration during its operation. This methodology summarizes different techniques in order to analyze the vibrational system. The different components of the hand-driller are represented as lumped masses and the connections between them with a spring and a damper. The elastic constant for the structural elements are determined by FEA using SolidWorks simulations, while the damping constant values used are the recommended by the software 20‑sim for structural damping. Once the model is developed, it will be shown how the corresponding Bond‑Graph diagram can be obtained and how it helps in obtaining the equations that describe the model. The software 20‑sim is used to simulate the developed Bond-Graph model and to determine the Hand‑Arm system vibrational response for a specific excitation force.

Keywords: vibration, drill, dynamic model, Hand-Arm system, bond-graph.

References

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Cite this article

Ruiz Darwin, Galvis Juan, Hernández Roque J., Zurek Eduardo E. Methodology for hand-tool vibration analysis using bond graph. Journal of Measurements in Engineering, Vol. 2, Issue 1, 2014, p. 16‑23.

 

Journal of Measurements in Engineering. March 2014, Volume 2, Issue 1
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