Optioneering of long viaducts via parametric design

2021 ◽  
Author(s):  
Paul M. Sobota
Keyword(s):  
Design Process ◽  
Performance Indicators ◽  
Parametric Design ◽  
Design Stage ◽  
Parametric Modelling ◽  
Parametric Approach ◽  
Early Design Stage ◽  
Main Challenge ◽  
Suitable Approximation

<p><br clear="none"/></p><p>During the optioneering phase, engineers face the challenge of choosing between myriads of possible designs, while, simultaneously, several sorts of constraints have to be considered. We show in a case study of a 380 m long viaduct how parametric modelling can facilitate the design process. The main challenge was to satisfy the constraints imposed by several different stakeholders. In order to identify sustainable, aesthetic, economic as well as structurally efficient options, we assessed several key performance indicators in real time. By automatically estimating steel and concrete volumes, a simple, yet suitable approximation of the embodied carbon (considering 85-95%) can be obtained at a very early design stage. In summary, our parametric approach allowed us to consider a wider range of parameters and to react more flexibly to changing conditions during the project.</p><p><br clear="none"/></p>

Design for Facility Over the Internet: A Case Study With Automotive Connecting Rod Designs

2001 ◽  
Author(s):  
Khurshid A. Qureshi ◽  
Kazuhiro Saitou
Keyword(s):  
Design Process ◽  
Parametric Design ◽  
Complete System ◽  
Design Stage ◽  
The Internet ◽  
Concept Design ◽  
Connecting Rod ◽  
Manufacturing Facility ◽  
Manufacturing Facilities

Abstract This paper introduces a new methodology called ‘Design for Facility over Internet (DFF)’. This methodology provides an Internet-based environment for designers to perform manufacturability analysis of product designs with respect to the capabilities of existing manufacturing facilities, upfront into the design process. In the current work, only fixturing (machining datums) capabilities of a manufacturing facility are considered. A prototype DFF system for an automotive connecting rod, is developed. The system enables the designers to design the connecting rods by considering the fixturing (datums) capabilities of existing manufacturing facilities upfront at the concept design stage. The complete system implementation will also enable the manufacturers of connecting rods to create and update the database of their capabilities over the Internet. The DFF system analyzes the parametric design with respect to the fixturing capabilities and generates suggestions for a designer, to modify his design if required, to fit the capabilities of specified facilities.

scholarly journals Integration of Sustainability Into Early Design Through Working Knowledge Model and Visual Tools

2009 ◽  
Author(s):  
Srikanth Devanathan ◽  
Pranav Koushik ◽  
Fu Zhao ◽  
Karthik Ramani
Keyword(s):  
Design Process ◽  
Environmental Sustainability ◽  
Modern Society ◽  
Design Stage ◽  
Knowledge Model ◽  
Early Design ◽  
Environmentally Sustainable ◽  
Early Design Stage ◽  
And Performance

The issue of environmental sustainability, which is unprecedented in both magnitude and complexity, presents one of the biggest challenges faced by modern society. Engineers, including mechanical engineers, can make significant contribution to the development of solutions to this problem by designing products and processes that are more environmentally sustainable. It is critical that engineers take a paradigm shift of product design i.e. from cost and performance centered to balance of economic, environmental, and societal consideration. Although there have been quite a few design for environment (DfE, or ecodesign) tools developed, so far these tools have only achieved limited industrial penetration: they are either too qualitative/subjective to be used by designers with limited experiences, or too quantitative, costly and time consuming and thus cannot be used during the design process specially during the early design stage. This paper develops a novel, semi-quantitative ecodesign tool that targets specially on early design process. The new tool is a combination of environmental life cycle assessment, working knowledge model, and visual tools such as QFD, functional-component matrix, and Pugh chart. Redesign of staplers is selected as a case study to demonstrate the use of the proposed tool. Efforts are on going to confirm that the new design generated using this new tool does have improved environmental performance.

Supporting the Ideation Process and Representation of the Design of a Product as Part of a Real Life Use Process

2012 ◽  
Author(s):  
Eliab Z. Opiyo
Keyword(s):  
Development Process ◽  
Low Cost ◽  
Real Life ◽  
Product Development Process ◽  
Design Stage ◽  
Effective Solution ◽  
Early Design Stage ◽  
The Past ◽  
Detail Design ◽  
Main Challenge

Numerous virtual and physical prototyping techniques have been developed in the past decades. These techniques are typically used for prototyping of products in the embodiment and detail design phases of the product development process, without taking into consideration the processes associated with products. These processes include sub-processes related to the operation of the products, interactivity of the product developer or the user with the product, and thinking and manipulative control of humans. The main challenge addressed in this paper is how to conceptualize and communicate ideas about products together with all accompanying processes. We have developed a new concept of abstract prototyping (AP), with the intent to enable the ideation and representation of products or systems as real life processes. In this paper, we present application case studies to demonstrate the applicability of this new concept of abstract prototyping. The preliminary results show that this is indeed the case and prove that process-focused abstract prototyping can be a useful new enabler for design communication. One of the major benefits of the proposed method over the competing approaches such as the application of VR solutions is that it provides a low-cost, but yet effective solution for the challenge of taking into consideration how the product will be used in user’s context or scenario at the very early design stage.

scholarly journals Engagement of Facilities Management in Design Stage through BIM: Framework and a Case Study

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Ying Wang ◽  
Xiangyu Wang ◽  
Jun Wang ◽  
Ping Yung ◽  
Guo Jun
Keyword(s):  
Information Support ◽  
Design Stage ◽  
Facilities Management ◽  
Design Phase ◽  
Early Design Stage ◽  
Visual Model ◽  
Early Adoption ◽  
Building Information ◽  
Operational Phase

Considering facilities management (FM) at the early design stage could potentially reduce the efforts for maintenance during the operational phase of facilities. Few efforts in construction industry have involved facility managers into the design phase. It was suggested that early adoption of facilities management will contribute to reducing the needs for major repairs and alternations that will otherwise occur at the operational phase. There should be an integrated data source providing information support for the building lifecycle. It is envisaged that Building Information Modelling (BIM) would fill the gap by acting as a visual model and a database throughout the building lifecycle. This paper develops a framework of how FM can be considered in design stage through BIM. Based on the framework, the paper explores how BIM will beneficially support FM in the design phase, such as space planning and energy analysis. A case study of using BIM to design facility managers’ travelling path in the maintenance process is presented. The results show that early adoption of FM in design stage with BIM can significantly reduce life cycle costs.

Design Shell for Parametric Design at Embodiment Stage

2003 ◽  
Author(s):  
Adwait Vaidya ◽  
Jami Shah
Keyword(s):  
Parametric Design ◽  
Problem Definition ◽  
Design Stage ◽  
Embodiment Design ◽  
System Requirements ◽  
Parameter Values ◽  
Domain Independent

The embodiment design stage involves determination of geometric sizes, key parameter values, and matching of component variables to system requirements. This embodiment design stage can be parametrically represented as an iterative design-redesign problem. This paper presents a domain independent characterization of such problems; the characterization includes problem definition, design relations/procedures, and measures of goodness. The paper also discusses representation issues and solution techniques for design-redesign problems. Design tasks are differentiated as domain independent or problem specific and the scope of each design task with respect to the characterization is delineated. A Design Shell implemented on the basis of this characterization is described. This shell can be configured for evaluating designs in any domain. A case study illustrates the use of this Design Shell in characterizing a specific design problem and exploring its design space.

The User Pre-Occupancy Evaluation Method in designer–client communication in early design stage: A case study

2013 ◽  
Vol 32 ◽  
pp. 112-124 ◽  
Author(s):  
Weilin Shen ◽  
Xiaoling Zhang ◽  
Geoffrey Qiping Shen ◽  
Terrence Fernando
Keyword(s):  
Evaluation Method ◽  
Design Stage ◽  
Early Design ◽  
Early Design Stage ◽  
Client Communication

scholarly journals BIM as support for design process with fire safety regulations

2017 ◽  
Vol 1 (1) ◽  
pp. 39-48
Author(s):  
L. Sanches ◽  
J. G. F. Abdalla ◽  
M. A. S. Hippert
Keyword(s):  
Design Process ◽  
Fire Safety ◽  
Parametric Design ◽  
Algorithm Design ◽  
Digital Tool ◽  
Safety Standards ◽  
Safety Regulations ◽  
Design Software ◽  
Legal Constraints

Based on a case study this research aims to answer if it is possible to, automatically, materialize fire safety standards in 3D forms using algorithmic-design software and also, to analyse means, methods and requirements for its creation. First, with a short literature review it was possible to approach the concepts of BIM and parametric design as well as its use throughout design process, this review was extended to fire safety standards seeking to understand how it defines architectural details in Brazilian state of Minas Gerais. Finally, a digital tool was developed using software Windows Excel and Rhinoceros/Grasshopper, and a set simulations were made to validate its use. The study showed it is possible to achieve results similar to the ones obtained by conventional methods; therefore, the use of legal constraints as parameters on an algorithm design software may bring more flexibility to design process as it can fasten the design choices validation.

scholarly journals Data driven parametric design

2011 ◽  
Vol 2 (7) ◽  
pp. 49
Author(s):  
Ferdinand Facklam ◽  
Felipe Pecegueiro do Amaral Curado
Keyword(s):  
Design Process ◽  
Parametric Design ◽  
Digital Fabrication ◽  
Geometric Shape ◽  
Data Driven ◽  
Systematic Procedure ◽  
Use Of Data ◽  
Sensory Process

The focus of this paper is that we want to give a brief introduction about the idea of Parametric Design (PD) and the use of data to inform the design process. The digital fabrication is not covered in detail in this document. In the case study “Live Building” explains a sensory process. The project shows how to collect data, transformed and transported into a shape. Innovation is not only the approach of the draft, but the systematic procedure and the resulting diversity of solutions. The search for the geometric shape and the key to the concept will be answered in detail.

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