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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

BIM - Förvaltarens Framtid / BIM - The future for Facility Management

Gustafsson, Sofie, Mårtensson, Ted January 2010 (has links)
<p>For nearly twenty years people have been talking about Product models, but given that the building industry is so conservative, it is hard to implement new working methods. Product models are these days known as Building Information Modeling, BIM. People often say they work with BIM but they often forget the most important part, the information. A 3D model should be linked with characteristics and information. Information that can be invaluable for the facility manager.</p><p>We have a vision that in the best of worlds the facility manager would be able to "walk" into the model and see what kind of installations are inside the wall or in the roof. You should be able to point at an object and gain complete information about operation and maintenance off the installation. You should also be able to gain information such as the name of the product and article number if you have to buy a new one. That’s why in our thesis we want to highlight the possibilities for the facility manager.</p><p>In order to have high achievements with BIM, coordination is highly needed. All participants in the construction process have to work together at an early stage; they must have the possibility to affect the stage of inquiry. By having the facility manager connected to the process at an early stage, other members have the opportunity to understand what’s expected from them. In the same way the facility manager will understand if any of the requirements are unreasonable or difficult to solve. Planning must be allowed to cost money. A well planned project can later save a lot of money due to less problems at the building worksite. In a well planned project there will be less changes and less additional work. The key words are Coordination and review.</p><p>During the facility management stage there are great opportunities to save money with BIM. The benefits of BIM have been shown and larger facility companies demand a model that work in the facility management stage. The greatest advantages are gained by the visual model that gives a greater understanding and a better base for decisions. There are also great advantages in more effective processes, better quality and better documentation for maintenance, operation, future rebuilding and future sale.</p><p>To be able to get a good image of BIM, how it is used today and what expectations there are, we have interviewed facility managers, system manager and BIM experts. We have also researched information in reports and articles.</p> / <p>I snart 20 år har man pratat om Produktmodeller men i byggbranschen är det svårt att införa nya arbetsmetoder. Produktmodeller har senare fått namnet Building Information Modeling eller Byggnadsinformationsmodeller på svenska, fortsättningsvis kallat BIM. Många säger idag att de BIM:ar när de gör 3D modeller men de glömmer ofta den viktigaste delen, informationen. Till 3D modellen kan egenskaper och information kopplas till varje objekt. Information som sedan kan vara ovärderlig för förvaltaren.</p><p>Vi har en vision av att i de bästa av världar skall förvaltaren kunna ”gå” in i modellen och se vad för installationer som finns i t.ex. väggar och ovanför takplattor. Dessutom ska man bara kunna peka på  ett don och få all information om det vad gäller drift och underhåll samt produktnamn och artikelnummer för att köpa ett nytt. Därför försöker vi i examensarbetet lyfta fram förvaltaren och fördelarna för denne.</p><p>För att få ut det bästa med BIM krävs samordning. De olika aktörerna i processen måste börja arbeta tillsammans i ett tidigt stadium, d.v.s. vara med och påverka redan i utredningsstadiet. Kan man ha med förvaltningen redan i utredningen får övriga aktörer en bättre förståelse för vad som förväntas av dem. Samtidigt kan förvaltningen tidigt få veta om några krav är orimliga eller svårlösta.Projektering måste få kosta. Ett väl projekterat projekt kan senare spara massor med pengar på att inga problem behöver lösas på byggarbetsplatsen. I väl projekterade projekt minskar ÄTA-arbeten och kollisioner. Nyckelorden för detta är Samordning och Samgranskning.</p><p>I förvaltningsskedet finns det stora utsikter att spara kostnader med hjälp av BIM, fördelarna har börjat visa sig och en del större förvaltare har börjat ställa krav på en produktmodell som går vidare in i förvaltningsskedet. De största fördelarna är bl.a. visualiseringen som ger en bättre förståelse och ett bättre underlag för beslut, effektiviseringen som spar både tid och material, kvalitetshöjning och bättre dokumentation för underhåll, drift, uthyrning, framtida ombyggnad och framtida försäljning.</p><p>För att skapa oss en bild om BIM, hur det används idag och vilka förväntningar som finns branschen, har vi intervjuat förvaltare, systemansvariga och BIM-experter. Vi har även sökt information i rapporter och tidsskrifter.</p>
12

BIM - Förvaltarens Framtid / BIM - The future for Facility Management

Gustafsson, Sofie, Mårtensson, Ted January 2010 (has links)
For nearly twenty years people have been talking about Product models, but given that the building industry is so conservative, it is hard to implement new working methods. Product models are these days known as Building Information Modeling, BIM. People often say they work with BIM but they often forget the most important part, the information. A 3D model should be linked with characteristics and information. Information that can be invaluable for the facility manager. We have a vision that in the best of worlds the facility manager would be able to "walk" into the model and see what kind of installations are inside the wall or in the roof. You should be able to point at an object and gain complete information about operation and maintenance off the installation. You should also be able to gain information such as the name of the product and article number if you have to buy a new one. That’s why in our thesis we want to highlight the possibilities for the facility manager. In order to have high achievements with BIM, coordination is highly needed. All participants in the construction process have to work together at an early stage; they must have the possibility to affect the stage of inquiry. By having the facility manager connected to the process at an early stage, other members have the opportunity to understand what’s expected from them. In the same way the facility manager will understand if any of the requirements are unreasonable or difficult to solve. Planning must be allowed to cost money. A well planned project can later save a lot of money due to less problems at the building worksite. In a well planned project there will be less changes and less additional work. The key words are Coordination and review. During the facility management stage there are great opportunities to save money with BIM. The benefits of BIM have been shown and larger facility companies demand a model that work in the facility management stage. The greatest advantages are gained by the visual model that gives a greater understanding and a better base for decisions. There are also great advantages in more effective processes, better quality and better documentation for maintenance, operation, future rebuilding and future sale. To be able to get a good image of BIM, how it is used today and what expectations there are, we have interviewed facility managers, system manager and BIM experts. We have also researched information in reports and articles. / I snart 20 år har man pratat om Produktmodeller men i byggbranschen är det svårt att införa nya arbetsmetoder. Produktmodeller har senare fått namnet Building Information Modeling eller Byggnadsinformationsmodeller på svenska, fortsättningsvis kallat BIM. Många säger idag att de BIM:ar när de gör 3D modeller men de glömmer ofta den viktigaste delen, informationen. Till 3D modellen kan egenskaper och information kopplas till varje objekt. Information som sedan kan vara ovärderlig för förvaltaren. Vi har en vision av att i de bästa av världar skall förvaltaren kunna ”gå” in i modellen och se vad för installationer som finns i t.ex. väggar och ovanför takplattor. Dessutom ska man bara kunna peka på  ett don och få all information om det vad gäller drift och underhåll samt produktnamn och artikelnummer för att köpa ett nytt. Därför försöker vi i examensarbetet lyfta fram förvaltaren och fördelarna för denne. För att få ut det bästa med BIM krävs samordning. De olika aktörerna i processen måste börja arbeta tillsammans i ett tidigt stadium, d.v.s. vara med och påverka redan i utredningsstadiet. Kan man ha med förvaltningen redan i utredningen får övriga aktörer en bättre förståelse för vad som förväntas av dem. Samtidigt kan förvaltningen tidigt få veta om några krav är orimliga eller svårlösta.Projektering måste få kosta. Ett väl projekterat projekt kan senare spara massor med pengar på att inga problem behöver lösas på byggarbetsplatsen. I väl projekterade projekt minskar ÄTA-arbeten och kollisioner. Nyckelorden för detta är Samordning och Samgranskning. I förvaltningsskedet finns det stora utsikter att spara kostnader med hjälp av BIM, fördelarna har börjat visa sig och en del större förvaltare har börjat ställa krav på en produktmodell som går vidare in i förvaltningsskedet. De största fördelarna är bl.a. visualiseringen som ger en bättre förståelse och ett bättre underlag för beslut, effektiviseringen som spar både tid och material, kvalitetshöjning och bättre dokumentation för underhåll, drift, uthyrning, framtida ombyggnad och framtida försäljning. För att skapa oss en bild om BIM, hur det används idag och vilka förväntningar som finns branschen, har vi intervjuat förvaltare, systemansvariga och BIM-experter. Vi har även sökt information i rapporter och tidsskrifter.
13

Méthode d'évolution de modèles produits dans les sytèmes PLM / A pattern based approach for the evolution of PLM tools in the extended enterprise.

Izadpanah, Seyed Hamedreza 28 September 2011 (has links)
Le système PLM est l’un des outils stratégiques de l’entreprise. Ces systèmes sont sujets à des changements récurrents dans l’entreprise. Les évolutions organisationnelles, le changement de l’offre produit ou encore le remplacement de logiciels PLM peuvent déclencher l’évolution du système d’information PLM. Une des structures les plus importantes dans les systèmes PLM est le modèle du produit, autour duquel s’articule les informations et processus. C’est autour du modèle produit que se concentrent nos recherches. Les causes d’évolution des modèles produits sont des éléments signifiants qui différencient les étapes de la démarche à suivre. Les méthodes d’IDM sont utilisées afin de formaliser la transformation des modèles. En plus, cette démarche bénéfice d’un cadre de similarité spécialement développé pour la configuration de produit. Un exemple industriel est illustré et résolu en appliquant cette démarche. Il s’agit de l’évolution d’un système gérant les modèles spécifiques de produit vers un système qui est capable de construire et d’utiliser les modèles génériques de produit. Un outil informatique support à nos travaux est développé dans le cadre d'Eclipse. / PLM systems are among the strategic components of enterprise’s information system architecture. These systems undergo frequent evolutions of enterprise. Organizational evolution or product offer variation as well as PLM application replacement may launch PLM systems’ evolution.One of the important structures in PLM systems is the product configuration, which organize and structure all product’s information and processes. Our research activities concern product model evolution. Reasons of product model evolution specify the appropriate methodology and necessary steps in order to handle it. MDE methods are used to formalize the model transformation process.Moreover, our methodology contains a specific similarity framework dedicated to product configuration. An industrial example was illustrated and resolved by this methodology. The problematic of this example is the migration of a system which manage only specific product configuration to a new system that is capable to construct and use generic models of product.
14

Feature-based Approach for Semantic Interoperability of Shape Models

Gupta, Ravi Kumar January 2012 (has links) (PDF)
Semantic interoperability (SI) of a product model refers to automatic exchange of meaning associated with the product data, among applications/domains throughout the product development cycle. In the product development cycle, several applications (engineering design, industrial design, manufacturing, supply chain, marketing, maintenance etc.) and different engineering domains (mechanical, electrical, electronic etc.) come into play making the ability to exchange product data with semantics very significant. With product development happening in multiple locations with multiple tools/systems, SI between these systems/domains becomes important. The thesis presents a feature-based framework for shape model to address these SI issues when exchanging shape models. Problem of exchanging semantics associated with shape model to support the product lifecycle has been identified and explained. Different types of semantic interoperability issues pertaining to the shape model have been identified and classified. Features in a shape model can be associated with volume addition/subtraction to/from base-solid, deformation/modification of base-sheet/base surface, forming of material of constant thickness. The DIFF model has been extended to represent, classify and extract Free-Form Surface Features (FFSFs) and deformation features in a part model. FFSFs refer to features that modify a free-form surface. Deformation features are created in constant thickness part models, for example, deformation of material (as in sheet-metal parts) or forming of material (as in injection molded parts with constant thickness), also referred to as constant thickness features. Volumetric features covered in the DIFF model have been extended to classify and represent volumetric features based on relative variations of cross-section and PathCurve. Shape feature ontology is described based on unified feature taxonomy with definitions and labels of features as defined in the extended DIFF model. Features definitions are used as intermediate and unambiguous representation for shape features. The feature ontology is used to capture semantics of shape features. The proposed ontology enables reasoning to handle semantic equivalences between feature labels, and is used to map shape features from a source to target applications. Reasoning framework for identification of semantically equivalent feature labels and representations for the feature being exchanged across multiple applications is presented and discussed. This reasoning framework is used to associate multiple construction paths for a feature and associate applicable meanings from the ontology. Interface is provided to select feature label for a target application from the list of labels which are semantically equivalent for the feature being exchanged/mapped. Parameters for the selected feature label can be mapped from the DIFF representation; the feature can then be represented/constructed in the target application using the feature label and mapped parameters. This work shows that product model with feature information (feature labels and representations), as understood by the target application, can be exchanged and maintained in such a way that multiple applications can use the product information as their understandable labels and representations. Finally, the thesis concludes by summarizing the main contributions and outlining the scope for future work.

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