2nd-CAD: A Tool for Conceptual Systems Design in Electromechanical Domain

2004 ◽  
Vol 4 (1) ◽  
pp. 28-36 ◽  
Author(s):  
Noe Vargas-Hernandez ◽  
Jami J. Shah
Keyword(s):  
Conceptual Design ◽  
Systems Engineering ◽  
Data Exchange ◽  
Systems Design ◽  
Behavior Modeling ◽  
Functional Design ◽  
Functional Requirements ◽  
Conceptual Systems ◽  
Electric Engineering ◽  
Component Selection

This paper presents a framework and information model for the development of SECOND-CAD (Systems Engineering CONceptual Design-CAD), or 2nd-CAD, a Computer Aided Conceptual Design (CACD) tool for Electromechanical Systems. The conceptual design tasks supported include functional design, behavior modeling, and component selection from standard industrial supply catalogs for mechanical, fluid, and electric engineering domains. 2nd-CAD is composed of three entity catalogs the designer uses to create three interconnected structures for function, behavior, and component. The logical model behind 2nd-CAD is one of the major contributions of this research. It allows the user to define entities based on popular taxonomies; this eases data exchange with other tools. When constructing structures, only technically feasible relationships are permitted and if an element in a structure is modified, the change is propagated throughout the structure. It reuses the entities’ information content to create new structures and since the three structures are interconnected, changes can be traced for design validation. 2nd-CAD’s functional requirements, logical design, and physical implementation are discussed in this paper.

scholarly journals Functional modelling of complex multi-disciplinary systems using the enhanced sequence diagram

2020 ◽  
Vol 31 (4) ◽  
pp. 429-448
Author(s):  
Unal Yildirim ◽  
Felician Campean
Keyword(s):  
Functional Analysis ◽  
Systems Engineering ◽  
Systems Design ◽  
Sequence Diagram ◽  
Functional Requirements ◽  
Sequence Diagrams ◽  
Personal Mobility ◽  
Development Scenarios ◽  
Function Modelling

Abstract This paper introduces an Enhanced Sequence Diagram (ESD) as the basis for a structured framework for the functional analysis of complex multidisciplinary systems. The ESD extends the conventional sequence diagrams (SD) by introducing a rigorous functional flow-based modelling schemata to provide an enhanced basis for model-based functional requirements and architecture analysis in the early systems design stages. The proposed ESD heuristics include the representation of transactional and transformative functions required to deliver the use case sequence, and fork and join nodes to facilitate analysis of combining and bifurcating operations on flows. A case study of a personal mobility device is used to illustrate the deployment of the ESD methodology in relation to three common product development scenarios: (i) reverse engineering, (ii) the introduction of a specific technology to an existent system; and (iii) the introduction of a new feature as user-centric innovation for an existing system, at a logical design level, without reference to any solution. The case study analysis provides further insights into the effectiveness of the ESD to support function modelling and functional requirements capture, and architecture development. The significance of this paper is that it establishes a rigorous ESD-based functional analysis methodology to guide the practitioner with its deployment, facilitating its impact to both the engineering design and systems engineering communities, as well as the design practice in the industry.

CONCEPTUAL DESIGN OF BOMB DETECTOR AS ANTICIPATION OF TERRORISM THREAT TO PUBLIC SERVICES

2021 ◽  
Vol 7 (1) ◽  
pp. 170
Author(s):  
Iris Sumariyanto ◽  
Asep Adang Supriyadi ◽  
I Nengah Putra A
Keyword(s):  
Artificial Intelligence ◽  
Conceptual Design ◽  
Systems Engineering ◽  
Public Services ◽  
Mass Casualties ◽  
Intelligence System ◽  
Three Stages ◽  
Metal Detectors ◽  
Security Surveillance ◽  
Processing Device

<p>Acts of terrorism are crimes and serious violations of human rights, also the threat of violence that can cause mass casualties and destruction of vital strategic objects. This is an urgent threat that needs to be prepared by designing a bomb detector conceptual design as anticipation of the threat of terrorism in public services. This study aims to obtain operational requirements and conceptual design of bomb detectors as detection of terrorism threats in public services. This study uses a mixed-method with a systems engineering approach and a life cycle model to produce a technological design. The results of operational requirements are sensors, standards, artificial intelligence, integration capability, reliability, calibration mode, portable, and easy to maintain. The configuration design is divided into three stages, namely, 1) sensors including a camera security surveillance system vector image, metal detectors, explosive detectors, and A-jamming; 2) as a processing device, processes an order with the help of an artificial intelligence system; and 3)  a security computer (surveillance), early warning, and mobile information to provide information to related agencies, especially the anti-terror unit.</p>

scholarly journals A Systems Engineering Hackathon – A Methodology Involving Multiple Stakeholders to Progress Conceptual Design of a Complex Engineered Product

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 38399-38410 ◽  
Author(s):  
S. Saravi ◽  
D. Joannou ◽  
R. S. Kalawsky ◽  
M. R. N. King ◽  
I. Marr ◽  
...  
Keyword(s):  
Conceptual Design ◽  
Systems Engineering ◽  
Multiple Stakeholders

Value-Driven Modeling of Tactical and Operational Decisions in Support of Aerospace Product-Service Systems Design

2015 ◽  
Author(s):  
Cassio D. Goncalves ◽  
Michael Kokkolaras
Keyword(s):  
Quality Function Deployment ◽  
Systems Design ◽  
Service Systems ◽  
Business Strategies ◽  
Functional Requirements ◽  
Operational Decisions ◽  
Design Engineers ◽  
Design Variables ◽  
Product Service ◽  
Product Service Systems

Competitive markets and complex business-to-business environments compel manufacturers to provide innovative service offerings along with their products. This necessitates effective methodologires for developing and implementing sucessful new business strategies. This article presents an approach to model tactical and operational decisions to support the design and development of Product-Service Systems (PSSs). A combination of Quality Function Deployment and Design-to-Cost techniques is proposed as the first step of a PSS design framework that aids design engineers to determine the relations among value to customer, functional requirements, design variables and cost. The objective is to identify PSS design alternatives that deliver value to customer while respecting cost targets. An aerospace software case study is conducted to demonstrate the proposed approach.

scholarly journals Elegance as Complexity Reduction in Systems Design

Complexity ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Luca Iandoli ◽  
Letizia Piantedosi ◽  
Alejandro Salado ◽  
Giuseppe Zollo
Keyword(s):  
Complexity Theory ◽  
Systems Engineering ◽  
Visual Art ◽  
Systems Design ◽  
Gestalt Psychology ◽  
Strongly Correlated ◽  
Design Strategies ◽  
Good Design ◽  
Effective Level ◽  
Systems Effectiveness

Elegance is often invoked as a characteristic of good design, but it cannot be pursued as a design objective because of the absence of actionable definitions that can be translated into design strategies and metrics. In this work, we analyze elegance in the context of systems engineering using a perspective that integrates visual art, Gestalt psychology, neuroscience, and complexity theory. In particular, we measure elegance as effective complexity and theorize that it can be achieved by a process of complexity resolution based on the adoption of eight visual heuristics. We present an empirical study in which a sample of systems engineers were asked to assess alternative representations of a same system and show that effective complexity is strongly correlated to perceived elegance and systems effectiveness. Our results are consistent with independent findings obtained in other fields including design and psychology of perception showing that good design must embed an effective level of complexity achievable through a mix of familiarity and novelty.

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