scholarly journals A Proposed Method to Preserve Knowledge and Information by Use of Knowledge Enabled Engineering

2007 ◽  
Author(s):  
Stefan Sandberg ◽  
Mats Na¨sstro¨m
Keyword(s):  
Automotive Industry ◽  
New Method ◽  
Body Parts ◽  
Design Features ◽  
Car Body ◽  
Car Model ◽  
Other Information ◽  
Body In White ◽  
Use Of Knowledge ◽  
Information Today

Today’s automotive industry produces more new car models in a shorter time than ever before. Every car model comes in many different versions regarding number of doors, engine, transmission etc while being built on a platform strategy. This leads to a lot of different knowledge and information that needs to be tracked for the different components in addition to other information e.g. what function does design features have, why is this radius not smaller etc. Volvo Car Corporation (VCC) is in need of an effective method to save and present all this knowledge and information today. This paper describes a new method, to gather and save knowledge and information about car body parts also called body-in white, which was implemented in a demonstrator and tested and evaluated on VCC.

scholarly journals Smart Process Combination for Aluminum/Plastic Hybrid Components

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
André Albert ◽  
Wolfgang Zorn ◽  
Markus Layer ◽  
Welf-Guntram Drossel ◽  
Dirk Landgrebe ◽  
...  
Keyword(s):  
Automotive Industry ◽  
Body Parts ◽  
Production Engineering ◽  
Lightweight Construction ◽  
Lightweight Structures ◽  
Car Body ◽  
State Of Research ◽  
The One ◽  
Integrated Or ◽  
Process Combination

The research on lightweight construction increasingly gains in importance, especially for the automotive industry. New lightweight components ensure the necessary stability of car body parts on the one hand. On the other hand they are supposed to allow a low priced production. Hence, aluminum or magnesium alloys have quite a large share in production engineering. During the last years, research mainly addressed metal/plastic compounds. Weight reduction as well as the capability of producing complex structures are only some of the benefits of this technology. Furthermore, additional functionality can be integrated or functional tasks can be distributed: The metal ensures stiffness and realizes the technical connection to the car body by means of welding, while the plastic enables the insertion of special elements for the joining or assembly process. This paper presents two approaches of realizing a combined process to produce aluminum/plastic-hybrid structures. In a first approach, an active tool is presented to realize the sheet based process. The second approach focusses on the tube-based process and presents the topical state of research within the Federal Cluster of Excellence EXC 1075 “Merge Technologies for Multifunctional Lightweight Structures”.

scholarly journals APPLICABILITY VERIFICATION OF AUTOFORM SOFTWARE FOR FEM SIMULATION OF MECHANICAL FIXATION OF HEMMED JOINTS

2019 ◽  
Vol 59 (6) ◽  
pp. 554-559
Author(s):  
Lukáš Chrášťanský ◽  
Jan Šanovec ◽  
Yatna Yuwana Martawirya ◽  
Michal Valeš
Keyword(s):  
Production Process ◽  
Automotive Industry ◽  
Dimensional Stability ◽  
Fem Simulation ◽  
Body Parts ◽  
Mechanical Method ◽  
Car Body ◽  
Law Of Similarity ◽  
The Law ◽  
Small Parts

This paper deals with the problematics of fixation of hemmed joints, especially with one specific mechanical method how to ensure a dimensional stability of a hemmed joint of car-body parts, such as doors, bonnet and trunk lid, during the production process in the automotive industry. It also evaluates simulations and verify the possibility of the use of the Autoform software for this problematics. In the paper, the possibility of using the law of similarity in the analysis of the compressibility of small parts by Autoform is described.

A Methodology for Modular and Changeable Design Architecture and Application in Automotive Framing Systems

2015 ◽  
Vol 137 (12) ◽  
Author(s):  
Hoda ElMaraghy ◽  
Tarek AlGeddawy
Keyword(s):  
Design Methodology ◽  
Body Parts ◽  
Car Body ◽  
Design Structure ◽  
Modularization Design ◽  
Automotive Assembly ◽  
Granularity Level ◽  
Body In White ◽  
Classification Tool

This paper presents a design methodology to modularize integrated fixtures, such as automotive framing systems, to be quickly and cost effectively reconfigured to accommodate a variety of products. Automotive assembly framing systems are used to accurately position and spot-weld the loosely pre-assembled body-in-white (BIW) car body parts. Auto-assembly systems can handle many car body styles; however, the used model-specific BIW framing systems are large, expensive, and the changeover to accommodate different car models takes considerable time. The proposed modularization design methodology aggregates a set of design structure matrices (DSMs) to represent the required changes in the fixtures, the spatial relationships between the used tools and fixtures, and the flow of exchanged information between them. The best granularity level of the modular fixture design architecture is determined using “Cladistics”: a hierarchical biological classification tool. Different tools within the framing system are combined into switchable modules, which allows these integrated systems to be easily reconfigured between different car body styles (product variants). A case study involving four car body styles is used for illustrating the presented design methodology. Results show the validity of the proposed methodology and demonstrate the obtained design of new modular automotive BIW framing system and the methods used for postprocessing and redesigning to improve the framing system's changeability.

Vorrichtungsfreies Fügen*/Fixtureless joining in car body assembly

2018 ◽  
Vol 108 (10) ◽  
pp. 703-707
Author(s):  
D. Kupzik ◽  
S. Coutandin ◽  
J. Fleischer
Keyword(s):  
Automotive Industry ◽  
Flexible Body ◽  
Body Shop ◽  
Car Body ◽  
New Models ◽  
Device Free

Die steigende Variantenvielfalt im Automobilbau durch neue Modelle und elektrische Derivate motiviert ein Umdenken im Karosserierohbau. In „SmartBodySynergy“ (SBS) wird ein flexibler Karosserierohbau in Werkstattfertigung entwickelt. Für dessen Umsetzung sind flexible Fügezellen notwendig. In diesem Artikel wird der Einsatz einer vorrichtungsfreien, kamerageregelten Bauteilpositionierung für den Einsatz in varianten- sowie vorgangsflexiblen Fügezellen untersucht und eine Demonstratorzelle vorgestellt.   The increasing diversity of variants in the automotive industry through new models and electrical derivatives motivates a rethinking of body shop construction. In „SmartBodySynergy“ (SBS), a flexible body shop is being developed in workshop production. For its implementation, flexible joining cells are necessary. This article examines the use of device-free, camera-controlled component positioning for use in variant- and process-flexible joining cells and introduces a demonstrator cell.

Stamping Plant 4.0 – Basics for the Application of Data Mining Methods in Manufacturing Car Body Parts

2015 ◽  
Vol 639 ◽  
pp. 21-30 ◽  
Author(s):  
Stephan Purr ◽  
Josef Meinhardt ◽  
Arnulf Lipp ◽  
Axel Werner ◽  
Martin Ostermair ◽  
...  
Keyword(s):  
Data Mining ◽  
Data Acquisition ◽  
Data Driven ◽  
Quality Analysis ◽  
Process Conditions ◽  
Data Sets ◽  
Body Parts ◽  
Car Body ◽  
Sample Data ◽  
Mining Methods

Data-driven quality evaluation in the stamping process of car body parts is quite promising because dependencies in the process have not yet been sufficiently researched. However, the application of data mining methods for the process in stamping plants would require a large number of sample data sets. Today, acquiring these data represents a major challenge, because the necessary data are inadequately measured, recorded or stored. Thus, the preconditions for the sample data acquisition must first be created before being able to investigate any correlations. In addition, the process conditions change over time due to wear mechanisms. Therefore, the results do not remain valid and a constant data acquisition is required. In this publication, the current situation in stamping plants regarding the process robustness will be first discussed and the need for data-driven methods will be shown. Subsequently, the state of technology regarding the possibility of collecting the sample data sets for quality analysis in producing car body parts will be researched. At the end of this work, an overview will be provided concerning how this data collection was implemented at BMW as well as what kind of potential can be expected.

scholarly journals Numerical Prediction of Forming Car Body Parts with Emphasis on Springback

Metals ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 435 ◽  
Author(s):  
Peter Mulidrán ◽  
Marek Šiser ◽  
Ján Slota ◽  
Emil Spišák ◽  
Tomáš Sleziak
Keyword(s):  
Numerical Prediction ◽  
Body Parts ◽  
Car Body

scholarly journals Measuring The Usefulness Of Information For Investors Inferences: The Case Of Quarterly Earnings Announcements

2010 ◽  
Vol 8 (7) ◽  
Author(s):  
C. Catherine Chiang ◽  
Yaw M. Mensah
Keyword(s):  
Financial Performance ◽  
Stock Price ◽  
Value Of Information ◽  
Earnings Announcements ◽  
New Method ◽  
Rates Of Return ◽  
Earnings Announcement ◽  
Quarterly Earnings ◽  
Other Information

In this paper, we propose a new method for assessing the usefulness of information, its inferential value. In the context of accounting and finance, we define the inferential value of information about a firm as how efficaciously the information enables investors to draw correct inferences regarding its future financial performance. On the basis of this definition, we develop a stylized model to measure the proximity of a firm’s future realized rates of return to the estimated rates of return implied by its current stock price. We then use the new measure to test the hypothesis that quarterly earnings announcements have a higher inferential value than other information arriving during interim (non-earnings announcement) periods. Our empirical findings suggest that investors are able to make more informative inferences about a firm’s future profitability based on quarterly earnings announcement than based on information available during interim periods. However, our findings also suggest that, in general, investors do not correctly anticipate future losses. Finally, we find that earnings announcements are as important in anticipating future profitability for larger firms as they are for smaller firms.

scholarly journals Computer aided design of sequencing problem – the concept of Paint Shop 4.0

Mechanik ◽  
2018 ◽  
Vol 91 (7) ◽  
pp. 529-531
Author(s):  
Jolanta Krystek ◽  
Sara Alszer ◽  
Szymon Bysko
Keyword(s):  
Automotive Industry ◽  
Computer Aided Design ◽  
Industry 4.0 ◽  
Paint Shop ◽  
Actual Structure ◽  
New Approach ◽  
Digital Factory ◽  
Sequencing Problem ◽  
Car Body ◽  
Aided Design

Presented is the concept of paint shop operation for the automotive industry – Paint Shop 4.0, based on the ideas of Industry 4.0 and Digital Factory. A new approach to the issue of car body sequencing, taking into account the actual structure of the paint shop department with buffers, has been presented. In the created application, proprietary car body sequencing algorithms were implemented.

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