scholarly journals A Concept for Process-Oriented Interdisciplinary Tolerance Management Considering Production-Specific Deviations

2019 ◽  
Vol 1 (1) ◽  
pp. 3441-3450 ◽  
Author(s):  
Bjoern Heling ◽  
Thomas Oberleiter ◽  
Andreas Rohrmoser ◽  
Christoph Kiener ◽  
Benjamin Schleich ◽  
...  
Keyword(s):  
Product Development ◽  
Computing Time ◽  
Tolerance Analysis ◽  
Product Development Process ◽  
Geometric Product ◽  
Wide Range ◽  
Process Oriented ◽  
Virtual Product Development ◽  
Development And Validation ◽  
Tolerance Management

AbstractTo meet rising customer requirements, increasingly complex products have to be virtually validated. To achieve this within the framework of virtual product development, a wide range of aspects has to be taken into account. In this context, tolerance analysis has established itself as a proven tool to evaluate the consequences of geometric part deviations on geometric product characteristics. Existing approaches, however, do not sufficiently take into account production-specific deviations, leading to time-consuming iterations during the product development process. Therefore, the focus of this contribution is on process-oriented interdisciplinary tolerance management that allows the integration of manufacturing simulations into the tolerance analysis. In contrast to the conventional approach, this novel methodology allows to avoid unnecessary iterations in the context of product development and validation. Following the presentation of the novel procedure, the application on a case study of an X- ray shutter is carried out, whereby surrogate models are integrated in order to reduce the computing time.

scholarly journals INTEGRATION OF CAD AND CAE IN SME’S FOR PRODUCT DEVELOPMENT

2012 ◽  
pp. 221-223
Author(s):  
PRASHANT B. SAGAR ◽  
MADHUKAR R. NAGARE
Keyword(s):  
Product Development ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Product Development Process ◽  
Element Analysis ◽  
Manufacturing Enterprises ◽  
Cad System ◽  
Small Manufacturer ◽  
Wide Range ◽  
Computer Aided

Small manufacturing enterprises face a number of challenges when integrating computer aided design (CAD) tools and computer-aided engineering (CAE) tools into their design processes. One of the most significant challenges is interoperability across the wide range of commercial CAD and CAE tools. Although many of these tools support industry data standards and claim to be interoperable, the connection between them is not seamless. This paper summarizes studies of tool integration activities at one small manufacturer. The paper shows the enhancement of the product development process resulting from replacement of a two dimensional CAD system with a three-dimensional CAD system and creation of an inhouse capability to perform finite element analysis (FEA), replacing analysis that had previously been outsourced. As a result of these experiences, the manufacturer learned that improved productivity and superior designs could be obtained by integrating analysis into the design process at the earlier stages of conceptual and preliminary design.

The Study on Process Development System

2013 ◽  
Vol 299 ◽  
pp. 176-179
Author(s):  
Xue Peng Liu ◽  
Dong Mei Zhao
Keyword(s):  
Product Development ◽  
Process Model ◽  
Development Process ◽  
Process Development ◽  
Product Development Process ◽  
Application System ◽  
Development System ◽  
Model Based ◽  
Process Oriented

The process -oriented product process model is established. The map of process model and product development is built. On the basis of product development process model, a model DMPA (Product development process model based on the process or action) is proposed. The algorithms of process deletion and recursion are put forward to implement the application system.

scholarly journals Efficient virtual garment fit evaluation infrastructure based on synthetic avatar target customer groups for MtM application

2020 ◽  
Vol 1 (2) ◽  
pp. 160-169
Author(s):  
Michael Ernst ◽  
Antje Christophersen ◽  
Monika Böhm ◽  
Ulrich Botzenhardt
Keyword(s):  
Product Development ◽  
Mass Customization ◽  
Development Process ◽  
Level Structure ◽  
Product Development Process ◽  
Automatic Process ◽  
Process Step ◽  
Joint Project ◽  
Virtual Product Development ◽  
The Right

Customization becomes more and more popular and influences the product development process in apparel industry. In addition to individualized products, the fit of garments is very important for the customization. Numerous tools are used to take the right measurements, to transport individual posture information and to implement these data correctly into a product pattern based on a predefined construction system. Unfortunately, in most cases the mass customization process takes place without a fitting session. Usually fit and design will be checked in the last process step, when the product is already manufactured. Virtual product development is a powerful tool to change this process getting an early fit and design check. By using a test population representing the target group, it is possible to check the sizing and to screen the fit of a product on individual bodies and postures in a short time. In a joint project between the Virtual Lab of Niederrhein University of Applied Sciences and Avalution GmbH, a practical approach for the implementation of a fitting session to a mass customization product development process was developed. The entire process has a three-level structure: First, the avatar population is built up using garment specific body measurements. Connected to a 3D simulation program, an automatic process of determining the made-to-measure (MtM) values, carrying out the MtM grading and the fitting on the selected avatar are initiated. In a special application, the digital try-ons are finally output as images in different physical aspects for evaluation.

scholarly journals Set-Based Concurrent Engineering Process Model and Systematic Application on an Electronic Card Reader

2021 ◽  
Vol 20 ◽  
pp. 329-351
Author(s):  
Ahmed Al-Ashaab ◽  
Zehra Canan Araci ◽  
Muhd Ikmal I. Mohd Maulana ◽  
Cesar Garcia Almeida ◽  
Steve Young
Keyword(s):  
Product Development ◽  
New Product Development ◽  
Concurrent Engineering ◽  
Process Model ◽  
New Product ◽  
Product Development Process ◽  
Card Reader ◽  
Systematic Application ◽  
Study Results ◽  
Wide Range

Set-based concurrent engineering (SBCE), also known as set-based design, is a state-of-the-art approach to the new product development process. SBCE, simply, provides an environment where designers explore a wide range of alternative solutions in the early stages of product development. After gaining knowledge, solutions are narrowed down until the optimal solution is ensured. Such an environment saves considerable amount of cost and time while reaching innovation and high quality in the products. However, industrial practitioners seek a clear and systematic application throughout an SBCE process. This paper demonstrates a well-structured SBCE process model and its step-by-step application on a product called “electronic card reader”. Real data is used in the industrial case study. Results showed the benefits of applying SBCE in both the product, and the process of new product development.

scholarly journals Impact of HPC and Automated CFD Simulation Processes on Virtual Product Development—A Case Study

2021 ◽  
Vol 11 (14) ◽  
pp. 6552
Author(s):  
Christopher Lange ◽  
Patrick Barthelmäs ◽  
Tobias Rosnitschek ◽  
Stephan Tremmel ◽  
Frank Rieg
Keyword(s):  
Product Development ◽  
High Performance ◽  
Cfd Simulation ◽  
Computing Time ◽  
Point Of View ◽  
Before And After ◽  
Massively Parallel Computing ◽  
Cfd Analyses ◽  
Virtual Product Development ◽  
The Impact

High-performance computing (HPC) enables both academia and industry to accelerate simulation-driven product development processes by providing a massively parallel computing infrastructure. In particular, the automation of high-fidelity computational fluid dynamics (CFD) analyses aided by HPC systems can be beneficial since computing time decreases while the number of significant design iterations increases. However, no studies have quantified these effects from a product development point of view yet. This article evaluates the impact of HPC and automation on product development by studying a formula student racing team as a representative example of a small or medium-sized company. Over several seasons, we accompanied the team, and provided HPC infrastructure and methods to automate their CFD simulation processes. By comparing the team’s key performance indicators (KPIs) before and after the HPC implementation, we were able to quantify a significant increase in development efficiency in both qualitative and quantitative aspects. The major aerodynamic KPI increased up to 115%. Simultaneously, the number of expedient design iterations within one season increased by 600% while utilizing HPC. These results prove the substantial benefits of HPC and automation of numerical-intensive simulation processes for product development.

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