Limitations of Parametric Operators for Supporting Systematic Design

2005 ◽  
Author(s):  
Bernhard Bettig ◽  
Vikram Bapat ◽  
Balaji Bharadwaj
Keyword(s):  
Variational Methods ◽  
Design Automation ◽  
Manufacturing Industry ◽  
Systematic Design ◽  
Synthesis System ◽  
Inherent Limitation ◽  
Design Synthesis ◽  
Automation Systems ◽  
Current Design ◽  
Design Requirements

Computers are being used extensively in the manufacturing industry to design and analyze products. In spite of the power of existing CAD systems and potential power of current Design Automation systems, we believe that they possess an inherent limitation that keeps them from aligning with and fully supporting the design process. Specifically, all of these systems are based on using parametric operators to generate valid designs. This paper examines the limitations of parametric operators for CAD and design automation and shows how “variational” methods could be used. An approach using variational methods is compared with traditional CAD and design automation methods. The paper also proposes a language of objects and relationships to represent design requirements. This work is a step towards realizing an interactive design synthesis system that can represent and satisfy design requirements.

scholarly journals TRANSPARENCY OF DESIGN AUTOMATION SYSTEMS USING VISUAL PROGRAMMING – WITHIN THE MECHANICAL MANUFACTURING INDUSTRY

2021 ◽  
Vol 1 ◽  
pp. 3249-3258
Author(s):  
Tim Heikkinen
Keyword(s):  
Design Automation ◽  
Manufacturing Industry ◽  
System Development ◽  
Visual Programming ◽  
Programming Approach ◽  
Automation System ◽  
Automation Systems ◽  
Potential Benefits ◽  
Feature Based ◽  
The Many

AbstractOne challenge with design automation is system transparency with adjustable granularity because of the many different forms of representation from multiple disciplines. Previous research has focused on visualization through the generation of graphs, packaging into electronic books, and model highlighting. The research presented in this paper focuses instead on a visual programming approach, commonly applied in the building industry, where design assets and external references are wrapped into visual components and managed on a canvas with information input/output relations displayed. This entails additional documentation efforts, but the visualization is arguably more useful as groups and levels of granularity are adjusted by the engineers themselves as a part of the development work. To explore visual programming and its potential benefits as a way of enabling transparency with adjustable granularity of DA systems within mechanical manufacturing industry, an existing textual design automation system was transformed into a visual one using Grasshopper® (a visual programming environment) and discussed with respect to DA system transparency, feature-based CAD, and DA system development.

Research on Situated Reconstitution of Non-Manifold Polyhedral from Function-to-Form Mapping

2013 ◽  
Vol 774-776 ◽  
pp. 1766-1769
Author(s):  
Zhi Gang Xu ◽  
Zi Xiang Li ◽  
Jin Wang ◽  
Tao Tao Liu ◽  
Chun Po Sun
Keyword(s):  
Design Automation ◽  
Algebraic Reasoning ◽  
Top Down ◽  
Automation Systems ◽  
Geometric Elements

Situated reconstitution is proposed in this paper to cope with un-manifold polyhedral from the function to form mapping processes. Specifically the situated reconstitution is not simply re-arrangement of geometric elements, mainly face entities in the un-manifold polyhedral, rather it needs a complex geometric/algebraic reasoning to reconstitute a manifold object, novel mathematical as well as AI techniques are introduced in this paper, several tools are developed to testify the proposed situated reconstitution in the “top-down” design automation systems.

Multi-tool processing in the conditions of complex automation of technical processes

2021 ◽  
pp. 24-30
Author(s):  
A.B. Istomin ◽  
I.N. Gemba ◽  
I.V. Lizunov
Keyword(s):  
Production System ◽  
Design Automation ◽  
Complex Problem ◽  
Machine Building ◽  
Production Cycle ◽  
Elastic Deformations ◽  
Automation Systems ◽  
General Complex ◽  
Complex Automation ◽  
Production Preparation

The article analyzes the influence of errors from elastic deformations on the accuracy of processing in the conditions of complex automation. Different variants of multi-tool processing are considered: parallel processing, when different tools are alternately, one after the other, involved in the processing of the workpiece surfaces, and parallel-sequential processing, when different surfaces of the workpiece are processed simultaneously by several tools located in the working position. Design automation in machine-building production is part of the complex problem of automation of engineering work in all areas of the functioning of a modern production system. Therefore, when creating design automation systems, its connections in the general complex of automation of engineering activities in the production cycle should be taken into account. In general, the automation of the engineer's work is task planning, design and technological preparation of production, and management of the production system. The choice of favorable cutting modes for multi-tool processing is a difficult task, since, along with taking into account the features of each individual tool, it is necessary to make a general analysis of the entire setup, i.e. the set of tools used on the machine, and the distribution of processing transitions among them. Machine-building production is currently characterized by the desire to constantly update the range of released products. The requirements of multi-product manufacture can be met under the condition of its automation, which covers both the automation of production preparation and management. The article provides recommendations for reducing the error from elastic deformations in the conditions of complex automation. English version ofthe article is available at URL: https://panor.ru/articles/multi-tool-machining-in-complex-process-automation/65225.html

scholarly journals Blockchain Reference System Architecture Description for the ISA95 Compliant Traditional and Smart Manufacturing Systems

Sensors ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 6456 ◽  
Author(s):  
Erkan Yalcinkaya ◽  
Antonio Maffei ◽  
Mauro Onori
Keyword(s):  
Manufacturing Systems ◽  
Manufacturing Industry ◽  
Research Effort ◽  
Smart Manufacturing ◽  
Reference Architecture ◽  
Systematic Assessment ◽  
Blockchain Technology ◽  
Design Requirements ◽  
Manufacturing Technologies ◽  
Smart Manufacturing Systems

The next-generation technologies enabled by the industry 4.0 revolution put immense pressure on traditional ISA95 compliant manufacturing systems to evolve into smart manufacturing systems. Unfortunately, the transformation of old to new manufacturing technologies is a slow process. Therefore, the manufacturing industry is currently in a situation that the legacy and modern manufacturing systems share the same factory environment. This heterogeneous ecosystem leads to challenges in systems scalability, interoperability, information security, and data quality domains. Our former research effort concluded that blockchain technology has promising features to address these challenges. Moreover, our systematic assessment revealed that most of the ISA95 enterprise functions are suitable for applying blockchain technology. However, no blockchain reference architecture explicitly focuses on the ISA95 compliant traditional and smart manufacturing systems available in the literature. This research aims to fill the gap by first methodically specifying the design requirements and then meticulously elaborating on how the reference architecture components fulfill the design requirements.

Design synthesis of non-symmetrically loaded high-performance disc brakes Part 1

2001 ◽  
Vol 215 (2) ◽  
pp. 101-109 ◽  
Author(s):  
M Tirovic ◽  
G Ali
Keyword(s):  
Finite Element ◽  
Design Process ◽  
Thermal Effects ◽  
High Performance ◽  
Finite Element Analyses ◽  
Design Synthesis ◽  
Critical Design ◽  
Disc Brakes ◽  
Design Requirements ◽  
Manufacturing Methods

Wheel-mounted disc brakes are exposed to severe non-symmetrical mechanical and thermal loads. The paper describes the design process for two high-performance, hub-mounted discs of different size and duty. The development has resulted in two very successful but fundamentally different hub designs and manufacturing methods. Initially, finite element analyses used in the design optimization were mainly concentrated on bulk thermal effects. Recently, in order further to improve the design process, analyses have included macro thermal effects, providing valuable results, particularly related to the prediction of disc permanent coning, one of the most critical design requirements.

Design Synthesis and Evaluation in a Design Reuse System

2005 ◽  
Author(s):  
Q. L. Xu ◽  
S. K. Ong ◽  
A. Y. C. Nee
Keyword(s):  
Product Information ◽  
Synthesis Method ◽  
Design Reuse ◽  
Product Knowledge ◽  
Design Synthesis ◽  
Fitness Assessment ◽  
Computational Support ◽  
Current Design ◽  
Information Management Systems ◽  
Reuse System

This paper presents a design reuse approach to facilitate product conceptual design. While current design information management systems are useful in storing and retrieving product knowledge, providing effective assistance to intelligent design synthesis is still far from satisfactory, let alone the support to logical solution evaluation. Accordingly, this paper proposes an approach to automatically generate design solutions and evaluate them analytically according to multiple design objectives. To achieve these functions, a design synthesis method based on a multi-objective optimization algorithm is proposed. It makes use of existing product information to create multiple candidate solutions. Moreover, a component fitness assessment (CFA) method is proposed to evaluate the reusability of the design components. This CFA method is used in the selection of design components during the design synthesis. A design reuse system is developed to implement the methodology. It can effectively manage heterogeneous product information as well as provide computational support for design synthesis and evaluation.

Bringing Path Planning and Lean Automation Together

2012 ◽  
Vol 591-593 ◽  
pp. 1371-1375
Author(s):  
Joseph Polden ◽  
Zeng Xi Pan ◽  
Nathan Larkin ◽  
Stephen van Duin
Keyword(s):  
Path Planning ◽  
Manufacturing Industry ◽  
Automation System ◽  
Manufacturing Processes ◽  
Control Operation ◽  
Automation Systems ◽  
New Challenges ◽  
Path Planner

In order to achieve higher productivity and flexibility, manufacturing industry is turning increasingly to robotics based lean automation systems. This lean approach presents a series of new challenges for the control, operation and programming of robotic hardware implemented to carry out a range of manufacturing processes. This paper reviews relevant path planning methodologies alongside a specific set of requirements for a manipulator operating in a lean automation workcell. Then, new challenges to path planning for a lean automation system are presented. Finally, a framework for a new path planner is developed and its performance is compared to existing methods.

scholarly journals A base-isolation design using spherically-ended rollers and telescopic shock absorbers

1988 ◽  
Vol 21 (2) ◽  
pp. 135-139
Author(s):  
L. T. Pham
Keyword(s):  
New Zealand ◽  
Base Isolation ◽  
Transmission Network ◽  
Hvdc Transmission ◽  
Shock Absorbers ◽  
Current Design ◽  
Design Requirements ◽  
Prototype Testing

The seismic strength of 16 valve damping resistors in the HVDC transmission network of the Electricity Corporation of New Zealand (Electricorp) were upgraded to current design requirements using a base- isolation design. This paper discusses the design, the prototype-testing and outlines briefly the usefulness and limitations of spherically-ended rollers as a base-isolation support.

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