102,062 research outputs found
Integrated Computer-Aided Innovation: The PROSIT approach
No full textThe paper presents a methodology aimed at the improvement of the product development cycle through
the integration of Computer-Aided Innovation (CAI) with Optimization and PLM systems. The
interoperability of these tools is obtained through the adoption of Optimization systems as a bridging
element between CAI and PLM systems. This methodology was developed within the PROSIT project
(http://www.kaemart.it/prosit).
The paper describes the main issues related to the integration of these complementary instruments
and the solutions proposed by the authors. More specifically, the main idea of the PROSIT project to link
CAI and Optimization systems is the adoption of the latter tools not just to generate optimized solutions,
but also as a design analysis tool, capable to outline critical aspects of a mechanical component in terms
of conflicting design requirements or parameters. CAI systems are then applied to overcome the
contradictory requirements. The second step, i.e. the integration between Optimization and PLM
systems, has been obtained through the development of Knowledge-Based (KB) tools to support
designer’s activities. More in details, they provide means to analyze and extrapolate useful geometrical
information from the results provided by the optimizer, as well as semi-automatic modelling features for
some specific geometries. A detailed example related to the design of a plastic wheel for light motoscooters
clarifies the whole procedure. The paper integrates, extends and updates topics presented in
Cugini et al., Barbieri et al. and Cascini et al. [U. Cugini, G. Cascini, M. Ugolotti, Enhancing interoperability
in the design process—the PROSIT approach, in: Proceedings of the 2nd IFIP Working Conference on
Computer-Aided Innovation, Brighton (MI), USA, October 8–9, 2007, published on Trends in Computer-
Aided Innovation, Springer, ISBN 978-0-387-75455-0, pp. 189–200; L. Barbieri, F. Bruno, M.
Muzzupappa, U. Cugini, Design automation tools as a support for knowledge management in topology
optimization, in: Proceedings of the ASME 2008 International Design Engineering Technical Conferences
& Computers and Information in Engineering Conference (IDETC/CIE 2008), Brooklyn, New York, USA,
August 3–6, 2008; L. Barbieri, F. Bruno, M. Muzzupappa, U. Cugini, Guidelines for an efficient integration
of topological optimization tools in the product development process, in: Third International Conference
on Design Computing and Cognition, Atlanta, USA, June 23–25, 2008; G. Cascini, P. Rissone, F. Rotini,
From design optimization systems to geometrical contradictions, in: Proceedings of the 7th ETRIA TRIZ
Future Conference, Frankfurt, Germany, November 6–8, 2007]
A GIS spatial analysis model for landslide hazard mapping application in Alpine Area
No full textThis research describes an application of an existing method for evaluating landslide susceptibility in
alpine contest that may be considered a useful support in better land-use planning and risk management.
In order to perform the method and improve it creating landslide maps of probability, we investigated
the several conditioning factors that in general affected these morphological processes. Firstly, a landslide
inventory was prepared using both in-depth analysis of historical records and aero-photos (or
orthophotos) investigation. Secondarily, a set of conditioning factors which may affect slope movement
and failure (particularly lithology, geomorphology, land use, slope angle and aspect) was considered.
Then, the method involved the application of GIS techniques, specifically, spatial Data Analysis application.
The thematic maps of conditioning factors overlapping together with the support of the raster
calculator allowed the susceptibility map creation. The method was applied to the Germanasca Valley,
a small basin in the Italian Western Alps. This easy to use method allows one to individuate various
classes of susceptibility and to identify slope, lithology and geomorphology, driven by old landslide
events as the main conditioning factors. Furthermore, the individuation of area susceptible to landslides
verification is strictly related to risk and, as a consequence, this method permits specific zone to be
selected for detailed engineering geology studies in land-use planning
Valutazione Sperimentale della Accuratezza della Tecnica Stereolitografica mediante Elaborazione Automatica di Immagini.
No full text
Climatic conditions associated to the occurrence of slope instabilities in the Italian Alps in year 2016
No full textStudies carried out in different parts of the world have shown that, in the mountain high-elevation sites, temperature can play a major role in the preparation and trigger of slope instabilities. However, the interplay with other climatic parameters (in particular precipitation) and the nature of the climate-driven processes that lead to the development of slope instability continue to be poorly understood. This understanding is crucial in order to define reliable scenarios of the evolution of slope instability under the expected climatic and environmental changes. The present work aims to contribute to shed light on these issues by analyzing with the statistical and probabilistic method developed by Paranunzio et al. (2016) the values of the climatic parameters associated to the most significant events of slope instability occurred at high elevation in the Italian Alps in 2016. The method allows to detect the anomalies in temperature and precipitation values that are associated to the development of these slope instabilities, providing the ground for discussion of possible causes and triggering mechanisms, also in the framework of ongoing climate change. Paranunzio R., Laio F., Chiarle M., Nigrelli G., Guzzetti F. (2016) - Climate anomalies associated to the occurrence of rockfalls at high-elevation in the Italian Alps. Natural Hazards and Earth System Sciences, 16, 2085-2106, DOI: 10.5194/nhess-16-2085-2016
Revisione dei requisiti di accettazione per gli aggregati - Indagini sperimentali e proposte metodologiche
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