Mechanical Engineering

Service robots for restoration of goods of cultural heritage

by Michela Cigola

Ceccarelli M., Cigola M., Service robots for restoration of goods of cultural heritage in Service Robots and Robotics: Design and Application edited by di M. Ceccarelli, published by IGI Global Hershey, Pennsylvania (USA) 2012; pp. 213-228. ISBN 978-1-4666-0291-5 (hardcover) - ISBN 978-1-4666-0292-2 (ebook); DOI: 10.4018/978-1-4666-0291-5.ch012

Preservation and benefit of goods of Cultural Heritage need careful activity of survey and restoration that can be... more Preservation and benefit of goods of Cultural Heritage need careful activity of survey and restoration that can be understood as service tasks for suitable robotic systems. New service robots can be conceived once the specificity of the application in Cultural Heritage area for architectural goods is carefully considered both with technical aspects and from operators viewpoints. In particular, in this chapter no technical aspects are also discussed as fundamental for the acceptance and use by no-technical operators in the new field of service robot application for survey and restoration of architectonic goods of Cultural Heritage value. Examples are illustrated from authors’ experience with the aim to stress the problems and challenges in applications for service robotic systems in Cultural Heritage frames.

The influence of the Society of Jesus on the spread of european mechanical knowledge in China in the XVIth and XVIIth centuries

by Michela Cigola

Cigola M., The influence of the Society of Jesus on the spread of european mechanical knowledge in China in the XVIth and XVIIth centuries, in Explorations in the History of Machines and Mechanisms Proceedings of HMM2012, T. Koetsier & M. Ceccarelli editors, Part 1, “History of Mechanisms and machine science” vol. 15; Springer, Dordrecht, Heidelberg, London, New York 2012; pp 69-79. ISSN 1875-3442 ISBN 978-94-007-4131-7 DOI 10.1007/978-94-007-4132-4

This article aims to investigate the role played by various missionaries of the Society of Jesus in the development... more This article aims to investigate the role played by various missionaries of the Society of Jesus in the development and spread of European scientific and mechanical knowledge in China between the XVIth and XVIIth centuries.

Distributed design review using tangible augmented technical drawings

by Michele Fiorentino

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TYR-4TX33RP-1&_user=10&_coverDate=05%2F31%2F2010&_rdoc=3&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info%28%23toc%235625%232010%23999579994%231847710%23FLA%23display%23Volume%29&_cdi=5625&_sort=d&_docanchor=&_ct=14&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=c7b4bcfd530fc0a3c38fb905c27a1e0d&searchtype=a

In this work we integrate augmented reality technology in a product development process using real technical drawings... more In this work we integrate augmented reality technology in a product development process using real technical drawings as a tangible interface for design review. We present an original collaborative framework for Augmented Design Review Over Network (ADRON). It provides the following features: augmented technical drawings, interactive FEM simulation, multimodal annotation and chat tools, web content integration and collaborative client/server architecture. Our framework is intended to use common hardware instead of expensive and complex virtual or augmented facilities. We designed the interface specifically for users with little or no augmented reality expertise proposing tangible interfaces for data review and visual editing for all the functions and configurations. Two case studies are presented and discussed: a real-time “touch and see” stress/strain simulation and a collaborative distributed design review session of an industrial component.

Keywords: Augmented reality; Collaborative design review; FEM data visualization; 3D model annotation

Genetic algorithms applied to turbine extraction optimization of a pressurized-water reactor

by Wagner Sacco

Equações de Navier-Stokes (Navier-Stokes Equations)

by Daniel Flórez-Orrego

Design and Optimization Method for Inertial Particle Separator Systems

by Eyas Alfaris

Vibration of ZnO nanotubes: a molecular mechanics approach

by Rajib Chowdhury

Applied Physics A: Materials Science & Processing, 2010

We investigate the vibrational properties of two kinds of single-wall ZnO nanotubes. The simulations are carried out... more We investigate the vibrational properties of two kinds of single-wall ZnO nanotubes. The simulations are carried out for three types of zigzag nanotubes (5,0), (8,0), (10,0) and armchair nanotubes (3,3), (4,4), (6,6). The natural frequencies are determined by means of the molecular mechanics approach with the universal force field potential. The first four natural frequencies are obtained for length/diameter ratio of about 5–20. The vibration modes associated with these frequencies have been computed. Closed-form analytical expressions have been derived using the continuum shell theory for the physical explanations of the simulations results. We observe that the natural frequencies decrease as the aspect ratios increase. The results follow similar trends with results of previous studies for carbon nanotubes (CNT). However, the magnitudes of the frequencies are lower from the corresponding CNT counterparts, indicating that ZnO nanotubes are comparatively less stiff.

Architectural survey and robotics: new frontiers in study, preservation and restoration of Historical Sites.

by Michela Cigola

Cigola M., Architectural survey and Robotics: new frontiers in study, preservation and restoration of historical sites in Proceedings di IMProVE 2011, International Conference on Innovative Methods in Product Design; Padova, Libreria Cortina 2011; pag 147 e CD. ISBN 978-887784-328-9.

A Robot application for analysis, survey and conservation of historical architectures.

by Michela Cigola

Cigola M., Ceccarelli M., A Robot application for analysis, survey and conservation of historical architectures in Robotics and Automation in Construction, edited by C. Balaguer & M Abderrahin, I-Tech Educational and Publishing KG Vienna,  2008; Cap. 20, pp. 328-354. ISBN 978-953-7619-13-8.

Evoluzione della rappresentazione grafica nel progetto dei meccanismi.

by Michela Cigola

Ceccarelli M., Cigola M., Evoluzione della rappresentazione grafica nel progetto dei meccanismi, in Atti del Convegno “Il Disegno di Progetto dalle origini a tutto il XVIII secolo. Storia e sviluppi”, Dipartimento di Rappresentazione e Rilievo dell’Università di Roma “La Sapienza”, Roma 1997; pp.427-433. ISBN 88-7448-766-5

Primeras tentativas de Codificación Gráfica en los Diseños de Máquinas anteriores a la Revolución Industrial.

by Michela Cigola

Cigola M., Primeras  tentativas de Codificación Gráfica en los Diseños de Máquinas anteriores a la Revolución Industrial, in Libro de Actas del VI Congreso Internacionál de Expresión Gráfica en la Ingeniería "Normalización Gráfica”; Universidad de Castilla-La Mancha (España), Almaden-Ciudad Real Mayo 1994, Tomo II pp. 391-400. ISBN 84-88248-26-X

Influencia de la obra de Gaspard Monge en el desarrollo de la Ingeniería mecánica italiana en el siglo 19.

by Michela Cigola

Ceccarelli M., Cigola M., INFLUENCIA DE LA OBRA DE GASPARD MONGE EN EL DESARROLLO DE LA INGENIERIA MECANICA ITALIANA EN EL SIGLO 19, Actas de IV Congreso Internacional de Patrimonio e Historia de la Ingenieria, Las Palmas de Gran Canaria 2009, pp.143-156. ISBN 976-84-612-3459-Z

Trends in the drawing of mechanisms since the early Middle Ages.

by Michela Cigola

Ceccarelli M. Cigola M., Trends in the drawing of mechanisms since the early Middle Ages, in  Journal of Mechanical Engineering Science, Proceedings of the Institution of Mechanical Engineers Part C, Volume 215 (2001), Professional Engineering Publishing Limited, London UK;  pp. 269-289. ISSN 0954-4062

On the evolution of mechanisms drawing.

by Michela Cigola

Cigola M., Ceccarelli M., ON THE EVOLUTION OF MECHANISMS DRAWING, pubblicato in Proceedings of IXth IFToMM World Congress, Politecnico di Milano luglio 1995; Vol. 4 pp. 3191-3195

Máquinas y papeleras en la historia del bajo Lazio en el siglo 19.

by Michela Cigola

Cigola M., Ceccarelli M., MAQUINAS Y PAPELERAS EN LA HISTORIA DEL BAJO LAZIO EN EL SIGLO 19, in Actas de III Congreso Internacional de Patrimonio e Historia de la Ingenieria, Las Palmas de Gran Canaria 2008; pp. 109-127. ISBN 978-84-612-3459-Z

Historical development of paper-mills and theirs machines in South Latium during the nineteenth century.

by Michela Cigola

Cigola M., Ceccarelli M., Historical development of paper-mills and theirs machines in South Latium during the nineteenth century, in History of machines for heritage and engineering development, J.J. de la Portilla & M.Ceccarelli editors, “History of Mechanisms and machine science” vol. 14; Springer, Dordrecht, Heidelberg, London, New York 2011; pp 85-117. ISSN 1875-3442 ISBN 978-94-007-1250-8 DOI 10.1007/978-94-007-1251-5

Rilevamento architettonico e robotica: nuove frontiere dell’innovazione tecnologica per l’analisi, lo studio e la tutela dell’architettura storica.

by Michela Cigola

Cigola M., rilevamento architettonico e robotica: nuove frontiere dell’innovazione tecnologica per l’analisi, lo studio e la tutela dell’architettura storica, in Rappresentazione e formazione – tra ricerca e didattica. Collana di studi e ricerche sul disegno dell’architettura e dell’ambiente, vol. 4, Roma 2008; pp. 127-140. ISBN 978-88-548-1633-6.

Descriptive Geometry and the Theory of Mechanisms in nineteenth century Italian engineering: similarities and interrelationship. Contiguità e commistione tra Geometria Descrittiva e Teoria dei Meccanismi nell’Ingegneria italiana del XIX secolo.

by Michela Cigola

Ceccarelli M., Cigola M., CONTIGUITÀ E COMMISTIONE TRA GEOMETRIA DESCRITTIVA E TEORIA DEI MECCANISMI NELL’INGEGNERIA ITALIANA DEL XIX SECOLO, in Disegnare Idee Immagini, anno X n. 39/2009; pp. 12-25. ISBN 978-88-492-1852-7, ISSN IT 1123-9247

Design, Fabrication and Control of a Three-Finger Robotic Gripper

by Farzad Cheraghpour Samavati

RVSP 2011-Proceeding of IEEE First International Conference on Robot, Vision and Signal Processing (RVSP), pp.280-283, 2011
.

Abstract— In this article a robotic gripper with the ability of cylindrical object grasping is designed and... more Abstract— In this article a robotic gripper with the ability of cylindrical object grasping is designed and fabricated. With the increasing use of robotic arms in industry, grasping and holding, as a part of industrial processes, are of great importance. Hence, proper design of grippers plays a key role in efficient performance of robotic arms. The main feature of this design is its reliability and efficiency while maintaining simplicity. This robotic gripper is designed for installing on a mobile robot with the task of holding and moving cylindrical object. One of the aspects of an efficient robotic gripper is its ability to satisfy the “Form-gripping” feature which is utilized for the presented design. Kinematic consideration is examined by Catia. Finally, control methods through Matlab and experimental test results are presented in this paper.

Experimental investigations of the scanning functions of galvanometer-based scanners with applications in OCT

by Virgil-Florin Duma

Duma V. F.*, Lee K.-S., Meemon P., Rolland J. P., Experimental investigations of the scanning functions of galvanometer-based scanners with applications in OCT , Applied Optics 50(29), 5735-5749 (2011)
- also selected in Virtual Journal for Biomedical Optics 6(11), ISSN 1931-1532, 2011

We analyse three most common profiles of scanning functions for galvanometer-based scanners (GS), the sawtooth,... more We analyse three most common profiles of scanning functions for galvanometer-based scanners (GS), the sawtooth, triangular and sinusoidal functions. They are determined experimentally with regard to the scan parameters of the input signal (i.e. frequency and amplitude). We study the differences of the output function of the GS measured as the positional error of the oscillatory mirror from the ideal function given by the input signal of the device. The limits in achieving the different types of scanning functions in terms of duty cycle and linearity are determined experimentally for the possible range of scan parameters. Of particular importance are the preservation of an imposed duty cycle and profile for the sawtooth function, the quantification of the linearity for the sinusoidal function, and the effective duty cycle for the triangular, as well as for the other functions. The range of scan amplitudes for which the stability of the oscillatory regime of the galvo mirror is stable for different frequencies is also highlighted. While the use of the device in certain scanning regimes is studied, certain rules of thumb are deduced to make the best out of the galvoscanner. Finally, the three types of scanning functions are tested with a Fourier Domain Optical Coherence Tomography (FD OCT) setup and the conclusions of the study are demonstrated in an imaging application by correlating the determined limits of the scanning regimes with the requirements of OCT.