Search

Your search keyword '"Valentini, Pier Paolo"' showing total 206 results
Start Over Author "Valentini, Pier Paolo"
206 results on '"Valentini, Pier Paolo"'

10. Recent Developments in Higher Path Curvature Analysis

Author

Cera, Mattia, Cirelli, Marco, Pennestrì, Ettore, Valentini, Pier Paolo, Shanmukhasundaram, V. R., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, di Mare, Francesca, Series Editor, Rao, Y. V. D., editor, Amarnath, C., editor, Regalla, Srinivasa Prakash, editor, Javed, Arshad, editor, and Singh, Kundan Kumar, editor

Published
2021
Full Text
View/download PDF

11. Path Curvature Theory: A Classic and Effective Design Tool

Author

Cera, Mattia, Cirelli, Marco, Pennestrì, Ettore, Valentini, Pier Paolo, Shanmukhasundaram, V. R., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, di Mare, Francesca, Series Editor, Rao, Y. V. D., editor, Amarnath, C., editor, Regalla, Srinivasa Prakash, editor, Javed, Arshad, editor, and Singh, Kundan Kumar, editor

Published
2021
Full Text
View/download PDF

29. Assessment of shape-based features ability to predict the ascending aortic aneurysm growth

Author

Geronzi, Leonardo, primary, Haigron, Pascal, additional, Martinez, Antonio, additional, Yan, Kexin, additional, Rochette, Michel, additional, Bel-Brunon, Aline, additional, Porterie, Jean, additional, Lin, Siyu, additional, Marin-Castrillon, Diana Marcela, additional, Lalande, Alain, additional, Bouchot, Olivier, additional, Daniel, Morgan, additional, Escrig, Pierre, additional, Tomasi, Jacques, additional, Valentini, Pier Paolo, additional, and Biancolini, Marco Evangelos, additional

Published
2023
Full Text
View/download PDF

30. Virtual testing of a new conjecture for the stone ascending device in Egyptian pyramids by means of a multibody dynamics simulation.

Author

Sarbia, Franco, Cirelli, Marco, Giannini, Oliviero, Cera, Mattia, Valentini, Pier Paolo, and Pennestrì, Ettore

Abstract

The ascending of rock blocks for building the Egyptian pyramids has been the topic of many discussions among Egyptologists. One of the authors (F.S.) conjectured a method that could be used for the task. In his own words: "This is the story of the random discovery of an oscillating machine, capable of using gravity to ascend, as the sail goes upwind." In this article, by means of a virtual prototype and multibody dynamics simulation, the physical feasibility of such method is tested for the first time. From historical and archeological bases, this investigation presents the fundamental functional features of the virtual model components for the ascending of the stones. Furthermore, the methodological details for the model setup, as well as the discussion on the stone ascending movements, are herein addressed. The main results obtained from the simulation include the evaluation of the advancement‐per‐cycle of the conjectured ascending device and the corresponding required driving forces. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

31. Numerical and Machine-Aided Experimental Models for Simulating the 3D Compliance of a Toothbrush.

Author

Cirelli, Marco, Cellupica, Alessio, D'Angelo, Luca, Mazur, Marta, and Valentini, Pier Paolo

Subjects
TOOTHBRUSHES, REACTION forces, TANGENTIAL force, DENTAL plaque, CONTACT mechanics
Abstract

One of the most discussed topics in toothbrush design is identifying the contact force exerted by the bristles on the teeth. Each bristle must generate a contact force to ensure tooth cleaning without damaging it. Numerical simulation is a very powerful tool for understanding the influence of design parameters (bristle shape and materials). This paper proposes a flexible multibody model to efficiently simulate the 3D compliance of a toothbrush. Each bristle is modeled using a discrete, flexible approach. The contact between the bristles and the target surface is established using the penalty contact method. An experimental test bench with a Universal Robot and a flat, transparent surface is set up. Validation is provided by comparing the reaction forces of the toothbrush with the reaction forces acquired by the load cells mounted on the end effector of the Robot. The results demonstrate the accuracy of estimating normal and tangential forces in various operating situations. The discrete flexible multibody technique has also demonstrated its viability in evaluating the displacement of the bristles when the toothbrush's base body is put through a specified motion, even when it is exposed to a sudden change in direction. As a result, the model can be effectively utilized to assess how well various brush classes remove dental plaque. Therefore, the suggested model could provide guidance for holistic modeling and advancements in toothbrush design to boost their effectiveness for thorough cleaning. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results