Target Cascading: A Design Process for Achieving Vehicle Ride and Handling Targets

2001 ◽  
Author(s):  
D. Geoff Rideout ◽  
Jeffrey L. Stein ◽  
John B. Ferris
Keyword(s):  
Design Process ◽  
Design Methodology ◽  
Vehicle Design ◽  
Design Strategies ◽  
Tire Pressure ◽  
Simulation Tools ◽  
Performance Targets ◽  
Overall Design ◽  
Target Cascading ◽  
Ride And Handling

Abstract Vehicle dynamics are well understood by both academic researchers and automotive industries. And while modeling and simulation tools are still underutilized, they are becoming more frequently used in the vehicle design process. However, there is still lacking an overall design methodology that can link and integrate in a systematic fashion the design tasks of individual components or systems such that the vehicle performs as intended with a minimal number of design iterations. A process called Target Cascading, applied in the early stages of vehicle design, might serve as this systematic design methodology. In this paper, Target Cascading is evaluated for its ability to propagate top-level design specifications down to specifications for various subsystems and components in a vehicle design problem. More specifically, general ride and handling targets are set for a vehicle and these are cascaded down through the suspension, tire pressure and spring design levels by partitioning the original problem into a hierarchical set of subproblems. At a given level, an optimization problem is formulated to minimize deviations from the proposed targets and thus achieve intersystem compatibility. A coordination strategy links all subproblem decisions so that the overall supersystem performance targets are met. Results are presented that demonstrate Target Cascading’s utility in unearthing tradeoffs and incompatibilities among initial targets early in the vehicle development cycle. Throughout the paper, the Target Cascading process is compared to traditional vehicle design strategies for achieving ride and handling targets. Target Cascading appears to be a promising systematic technique for the design of vehicles to meet ride and handling specifications.

A Methodology for Interior Design

2021 ◽  
pp. 161-178
Author(s):  
Ervin Garip ◽  
Ceren Çelik
Keyword(s):  
Design Process ◽  
Interior Design ◽  
Design Methodology ◽  
Design Practice ◽  
Direct Proportion ◽  
Overall Design ◽  
Living Space ◽  
Variable Environments

The notion of designed space often comes up with the tendency of perfection. This approach, which connects the design to perfection, is mostly reflected in the overall design, even in the representations. In this approach, the power of representation advances in direct proportion to its perfection and perfection is expected in the designed spaces. The situation created by this perfect representation and the reflection of perfection to the design also emerges in the “home” where daily encounters and routines are most intense. Rather than a flawless photogenic object, interiors are dynamic and variable environments containing daily encounters. The interior design practice can be handled from this context and actively influence the design methodology itself. The study shows that as the concept of “home” moves away from a photogenic object, the potential of designing a multi-layered and flexible living space in interior design studios increases. This situation provides alternative spatial articulations in the final product and representations as well as in the interior design process.

Sustainable apparel design strategies regenerated from traditional costumes of the Chosun Dynasty

2017 ◽  
Vol 21 (1) ◽  
pp. 27-41 ◽  
Author(s):  
Seoha Min ◽  
Helen Koo
Keyword(s):  
Design Process ◽  
Design Methodology ◽  
Sustainable Design ◽  
Research Purpose ◽  
Design Strategies ◽  
Apparel Design ◽  
Korean Culture ◽  
Content Type

Purpose This study aims to provide insights to designers for seeking innovative ways to design sustainable clothes and appeal to consumers by enhancing sustainability. Design/methodology/approach To achieve the research purpose, the researchers went through a design process and designed three prototypes. The experts’ evaluation on the prototypes was positive. Findings Various design strategies derived from the Korean traditional costume were explored. Based on the strategies, three prototypes were developed, and the design experts’ evaluation on the prototypes was positive. Originality/value The research has implications as follows. The sustainable design process and methods used in this research for developing designs inspired from cultural costumes will provide insights to designers who want to create sustainable garments inspired by a certain culture. In addition, the design and sustainable design strategies, derived from the Chosun Dynasty, will guide apparel designers to create sustainable designs and broaden their perspectives. Furthermore, the research will provide guidance to following researchers who are interested in the topic of sustainability in apparel design. The researchers explored sustainable design strategies from the Korean culture, applied them in their design process and evaluated the design outcomes. By doing so, merits and limitations of the design strategies were more clearly understood.

Setting Performance Targets Based on Subsystem Pareto Frontiers in Multilevel Optimization

2006 ◽  
Author(s):  
Huibin Liu ◽  
Christopher Hoyle ◽  
Xiaolei Yin ◽  
Wei Chen
Keyword(s):  
Design Process ◽  
Pareto Frontier ◽  
System Level ◽  
Engineering System ◽  
Multilevel Optimization ◽  
Performance Targets ◽  
Target Values ◽  
Target Cascading ◽  
Complex Engineering ◽  
Complex Engineering System

The design of a complex engineering system typically involves tradeoffs among multiple design criteria or disciplinary performance to achieve the optimal design. The design process is usually an iterative procedure with individual discipline sub-systems designed concurrently to meet target values assigned from the system level. One of the most challenging issues is the large number of iterations in this design process, especially when uncertainty is taken into account. To improve the design concurrency while maintaining preferred tradeoffs at the system level, a new method is developed that identifies proper targets based on disciplinary design capability information while optimizing the design goal at the system level. The design capability of a discipline or criterion is represented by the achievable area bounded by its Pareto frontier. Using target values obtained from this method using Pareto information, the number of design iterations can be reduced in both deterministic and probabilistic design scenarios compared to existing approaches, such as Analytical Target Cascading (ATC). To demonstrate applications and benefits of the developed method this approach is applied to the design of a two-bar truss structure.

scholarly journals DECISION MAKING UNDER UNCERTAINTY USING A VEHICLE MULTILEVEL MODEL: APPROACH TO TARGETS ALLOCATION

2011 ◽  
Author(s):  
A. Chokri ◽  
J.-Y. Trépanier ◽  
C. Tribes
Keyword(s):  
Decision Making ◽  
Multilevel Model ◽  
Vehicle Design ◽  
Decision Making Under Uncertainty ◽  
Design Strategies ◽  
Hierarchical Tree ◽  
Performance Targets ◽  
Subjective Beliefs ◽  
Hierarchical Tree Structure ◽  
Model Approach

In this paper, we consider setting performance targets for a vehicle design. The vehicle is modeled by a multilevel hierarchical tree structure. We have considered that each leaf of the structure may have several characteristics, and that for each characteristic a target is defined. Experts’ opinions are expressed with uncertainty regarding the feasibility of achieving these targets. Experts’ opinions are given in the form of intervals associated with their subjective beliefs for the possible values of characteristics. The collected information is propagated in the model to determine the plausibility and the belief for characteristics at the vehicle level. Using this information, five target allocation approaches are discussed which can be applied to three vehicle design strategies.

Sensor e-textiles: person centered co-design for people with late stage dementia

2016 ◽  
Vol 20 (2) ◽  
pp. 76-85 ◽  
Author(s):  
Cathy Treadaway ◽  
Gail Kenning
Keyword(s):  
Design Process ◽  
Late Stage ◽  
Design Methodology ◽  
Design Research ◽  
Family Members ◽  
Sensory Properties ◽  
Content Type ◽  
People With Dementia ◽  
Grounded Practical Theory ◽  
The Moment

Purpose – The purpose of this paper is to present design research investigating the development of sensory textiles with embedded electronics to support the wellbeing of people with late stage dementia in residential care. Design/methodology/approach – The research presented is qualitative and uses a mixed method approach informed by grounded practical theory and positive design methodologies. It uses an inclusive and participatory co-design process involving people with dementia and their families with an interdisciplinary team of experts. Findings – Both the co-design process and the artefacts developed have been beneficial in supporting wellbeing. The textile artefacts have been found to soothe, distract and comfort people with dementia. They have also been shown to facilitate in the moment conversational bridges between family members and carers with persons with dementia. Research limitations/implications – The findings are based on a small cohort of participants, observational reports and descriptive accounts from family members and carers. Practical implications – The paper proposes ways in which simple hand-crafted textiles can be used beneficially to support the wellbeing of people with late stage dementia. It provides examples of how technology can be used to personalise and extend the sensory properties of the artefacts created. Social implications – It promotes an inclusive co-design methodology involving care professionals, carers and people with dementia with designers and technologists. Originality/value – The paper describes new ways of extending sensory properties of textiles through the integration of technology.

Functional Design Methodology Based on Knowledge Databases Achievements

2015 ◽  
Vol 809-810 ◽  
pp. 865-870
Author(s):  
Manuela Roxana Dijmărescu ◽  
Dragoș Iliescu ◽  
Marian Gheorghe
Keyword(s):  
Design Process ◽  
Design Methodology ◽  
Design Solution ◽  
Functional Design ◽  
Design Solutions ◽  
Early Phases

Various architectures exposing certain phases of the design process have been developed. A closer analysis of the presented timelines is leading more to postpone the design solution rather than advancing it in the early phases. This paper advances a new architecture for the design process with the main emphasize on the product functional design, based on functional-constructive knowledge stored in databases, and on the principle of selecting design solutions in an incipient phase and developing them during the further design process stages.

Electronic Sensor Design Principles

2021 ◽  
Author(s):  
Marco Tartagni
Keyword(s):  
Graduate Students ◽  
Design Process ◽  
Interdisciplinary Approach ◽  
Process Efficiency ◽  
Sensor Design ◽  
Overall Design ◽  
Electronic Sensor ◽  
Speed Up ◽  
Design Requirements ◽  
Electronic Sensors

Get up to speed with the fundamentals of electronic sensor design with this comprehensive guide, and discover powerful techniques to reduce the overall design timeline for your specific applications. Includes a step-by-step introduction to a generalized information-centric approach for designing electronic sensors, demonstrating universally applicable practical approaches to speed up the design process. Features detailed coverage of all the tools necessary for effective characterization and organization of the design process, improving overall process efficiency. Provides a coherent and rigorous theoretical framework for understanding the fundamentals of sensor design, to encourage an intuitive understanding of sensor design requirements. Emphasising an integrated interdisciplinary approach throughout, this is an essential tool for professional engineers and graduate students keen to improve their understanding of cutting-edge electronic sensor design.

Energy consultants calculating sustainability for residential buildings

Facilities ◽  
2019 ◽  
Vol 37 (11/12) ◽  
pp. 825-838 ◽  
Author(s):  
Roger Andre Søraa ◽  
Håkon Fyhn ◽  
Jøran Solli
Keyword(s):  
Design Process ◽  
Energy Efficient ◽  
Design Methodology ◽  
Residential Buildings ◽  
Qualitative Interviews ◽  
Implementation Process ◽  
Building Sector ◽  
Content Type ◽  
Practical Implications

PurposeThis paper aims to investigate the role of a particular energy calculator in enhancing the energy efficiency of existing homes by asking how this calculator was developed and how it is domesticated by craftspeople working as energy consultants.Design/methodology/approachThe study is based on qualitative interviews with users and producers of the energy calculator (n= 22), as well as participation in energy consultation training.FindingsThe paper finds that, in the energy calculator, there is a striking lack of connection between the domestication and script because of lack of energy consultants’ involvement in the design and implementation process.Practical implicationsThe enrolment of energy consultants as energy calculator users earlier in and throughout the design process could be valuable in making the transition to an energy-efficient and environmentally friendly building sector.Social implicationsThe paper argues for recognition of the role of energy consultants, especially craftspeople, as participants in the design process for tools of governance. This is a call to acknowledge the value of particular skills and experiences possessed by craftspeople doing home consultation.Originality/valueBy understanding the intricate developer–user synchronicity in tools developed for upgrading the building sector, energy mitigation can be made more effective.

scholarly journals Participatory design of healthcare technology with children

2018 ◽  
Vol 31 (1) ◽  
pp. 20-27
Author(s):  
Tara Sims
Keyword(s):  
Product Design ◽  
Design Process ◽  
Upper Limb ◽  
Participatory Design ◽  
Design Methodology ◽  
Design Research ◽  
Content Type ◽  
Upper Limb Prostheses ◽  
Sociocultural Approach ◽  
Design Skills

Purpose There are many frameworks and methods for involving children in design research. Human-Computer Interaction provides rich methods for involving children when designing technologies. The paper aims to discuss these issues. Design/methodology/approach This paper examines various approaches to involving children in design, considering whether users view children as study objects or active participants. Findings The BRIDGE method is a sociocultural approach to product design that views children as active participants, enabling them to contribute to the design process as competent and resourceful partners. An example is provided, in which BRIDGE was successfully applied to developing upper limb prostheses with children. Originality/value Approaching design in this way can provide children with opportunities to develop social, academic and design skills and to develop autonomy.

A Mechanical Design Framework Based on Object-Oriented Approach

1993 ◽  
Author(s):  
Taesik Jeong ◽  
Thomas P. Kicher ◽  
Ronald J. Zab
Keyword(s):  
Design Process ◽  
Mechanical Design ◽  
Design Method ◽  
Object Oriented ◽  
Object Oriented Programming ◽  
Reduction Gear ◽  
Design Framework ◽  
Design Strategies ◽  
Decomposition Approach ◽  
Automation Systems

Abstract An object-oriented programming (OOP) technique is investigated in order to develop the framework for mechanical design automation systems. A task-oriented decomposition approach is applied to conceptualize the task-object (or task-performing-object) in which common behavior and communication protocols are encapsulated [1]. Each task in the entire design process, either controlling design strategies or performing design methods, is made into an object. The design method objects are implemented using Artificial Intelligence (AI) paradigms, such as artificial neural networks and expert systems. This report explains how OOP is integrated to develop a mechanical design framework (MDF). A single reduction gear box design process was used to identify some of the general tasks involved in mechanical design process. From this process the guidelines for developing task-objects for future systems are formed. Full details of these guidelines and an implementation example in Smalltalk on a PC are available in [7].

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