Design Of Integrated System Research Articles

Integrated Knowledge-Based System for Machine Design

An integrated design system (IDS) approach has been developed to integrate various stages of the mechanical design process, including rapid prototyping. The system consist, of design, analysis, calculation, rapid prototyping, and library modules, and it blends artificial intelligence methods, CAD-CAM, and technical computing packages into a single environment. The system has been applied for the design of one-stage gearbox with helical gear. In this case study, all stages of the design process are carried out by using IDS.

Integrated Design Approach for Solving Complexity of Design Problem

The engineering problems today become more and more complex particularly in the area of new product development. It requires the multi-disciplinary design method to solve complex problems. This paper presents an integrated design system for solving complexity during multi-disciplinary design. Complexity could be solved if the design problems, given by any individuals who are concerned, are structured. The design system uses the multi-viewpoint concept to allow experts to share their information and knowledge in common views. Knowledge modules are used to store semantics from the experts of different disciplines. Then the system agent acts as an internal designer to help support the individuals to translate any semantics provided from one discipline and then propagate to other related disciplines. With these tools, the integrated design system can structure and solve the complexity of design problems.

Wearable Sensing for Physical Activity Measurement: Design and Performance Evaluation

In-situ monitoring of human physical activity under free-living conditions is key to establishing correlation between activity and health. This paper presents the design and performance evaluation of a multi-sensor integrated measurement system (IMS) for quantifying human physical activity. The IMS consists of two accelerometers, one UV sensor, and one respiration sensor to track and record body movement and the level of exertion of human body, to enable an objective assessment of the activities that human test subjects engage in during daily lives. Detailed analysis and simulations were performed leading up to a parametric design of the IMS unit. Experiments performed on human subjects in a clinical study have demonstrated that the multi-sensing system working in conjunction with a supervised learning algorithm is effective in recognizing activities types of varying intensity.

Actualities and Development on Dynamic Monitoring and Diagnosis with Distributed Fiber Bragg Grating in Mechanical Systems

The concept, main content, solutions, latest research advances of dynamic monitor and diagnosis with distributed fiber Bragg grating(FBG) in mechanical systems at home and abroad are discussed thoroughly. Based on the introduction of the concepts and missions of mechanical system, and the high-performance distributed FBG sensor, the principle and method of the high speed reflected demodulation, the principle and method of distributed sensing and dynamic monitoring, the recognition principle and method of mechanical damage based on distributed measurement data for mechanical system are presented. And also the integration principle and system design method of dynamic monitoring and diagnosis are proposed. Research achievements of the research group in the past 10 years and research advances at home and abroad of fiber sensing technology are summarized for significant mechanical equipment monitoring and diagnosis field.

SYSTEMIC MODELING OF INTEGRATED SYSTEMS FOR DECISION MAKING EARLY ON IN THE DESIGN PROCESS

Integrated systems design has new possibilities due to the use of intelligent devices. However, these new technologies introduce new constraints for designing innovative architectures and assessing their dependability. This article presents the Safe-SADT formalism, an extension of the structured analysis and design technique (SADT), for dependability studies and a computer-aided design (CAD) tool/software for modeling and comparing several architecture design choices early on in the design process. Its originality is based on operational architecture composed of function entities executed by material entities. A Monte Carlo approach allows simulation of “possible life history” and points out design's weaknesses using sensitivity analysis. We illustrate the tool functionalities with a temperature system. Possibilities for future research in terms of software development and industrial applications are provided.

An Integrated Design System for Marine Propeller

An Integrated Design System for Marine Propeller

Human–Systems Integration Design Process of the Air Traffic Control Tower Flight Data Manager

A user-friendly system that yields operational benefit results from data-driven prototype evaluations and benefits analyses that iteratively feed back into the prototype design and development. In this study, initial requirements development and field evaluations were conducted using a shadow operations technique at the center tower backup Dallas–Fort Worth International Airport air traffic control tower (ATCT). Results are discussed in reference to the design process of the Tower Flight Data Manager (TFDM) prototype. Nonintrusive measures for quantitatively validating human–systems design issues were identified for this study, including visual gaze analysis and verbal command sequence analysis. Behavioral validation of design issues simplifies the process to prioritize beneficial design changes. The iterative process used resulted in an interim TFDM prototype that was rated by active air traffic controllers as both beneficial and usable in an operational ATCT environment.

An RTLS-Based Approach to Cyber-Physical Systems Integration in Design and Construction

There have been several approaches to integrating physical construction components and their virtual models using RFID tags. These enable the movement of components to be tracked on the construction site. However, there is inadequate support for bidirectional coordination between these components and their virtual representations. Also, these approaches often involve manual input of status information into the tags and do not support tracking the permanent installed position of tagged components for consistency maintenance between the as-built and the as-planned models. As such, there are difficulties with ensuring accurate and timely updating of building information models and tag information during the construction process. A major bottleneck in achieving this integration is the choice of appropriate mechanisms for binding physical components with their virtual representations. This paper presents an approach to facilitating bidirectional coordination between physical construction components and their virtual models. Specialized real-time location sensing (RTLS) tags were used for tracking the position and status of physical construction components. This approach showed significant opportunities for enhancing real-time construction consistency checking, which will aid proactive decision making and control. The paper also discusses experiments undertaken to demonstrate the proposed RTLS-based system and highlights the merits and demerits of adopting the proposed approach on a full-scale project.

Security Design of Web-Based Information Integrated System

Security is an important index in the design of information integrated system. Combined with the development of an information integrated system, the security design of database system and network of the Web-based information integrated system are researched. The safety management methods and implementation measures are presented, which have certain reference value in the actual execution process.

The Integration Technology and Analysis of Information System

Based upon the resume of information system integration, this paper sets forth the system integration technologies, such as system architecture technology, collective design technology, system integration design technology, data sharing technology, system integration validation technology, system modeling and simulation technology and integration engineering management technology, and puts forward the integration effect analysis. Thenceforth a primary prospect is presented.

Microcontroller System Design for Robotic Vehicles

In this paper, a microcontroller system designed for economic robotic vehicles was presented. The system is consisted of hardware and software design. In the hardware design, the layout of the main control PCB was designed and implemented by the researchers themselves. The software function currently merely specified the obstacles avoiding capability for verifying the design of the integrated system. Performance evaluation was conducted to prove the effectiveness and the response time of this system. The results showed that the vehicle could pass the lane stuffed with obstacles in expected time limit.

Research on the Renewable Energy Hot Water System in the Subtropical Region and Comparison of their Effectiveness and Benefits in Northern Guangxi: Take Solar Integrated System Design of Higher Institutions’ Dormitories as an Example

This paper is based on the general condition that renewable energy resources used in buildings in Guangxi subtropical regions. By integrating the case of 9# dormitory building in Bowen College, Guilin University of Technology, making compare and contrast to the effectiveness of using ground source heat pump system, air source heat pump system , solar electric water heaters under such condition, taking the effectiveness of using renewable energy resources in air source heat pump system, the author discuss the issue of renewable energy resources system and the integration of buildings and provides some suggestions.

Design and Application of Heterogeneous Data Semantic Integration System based on Domain Ontology

Design and Application of Heterogeneous Data Semantic Integration System based on Domain Ontology

Assessing technical debt by identifying design flaws in software systems

Tough time-to-market constraints and unanticipated integration or evolution issues lead to design tradeoffs that usually cause flaws in the structure of a software system. Thus, maintenance costs grow significantly. The impact of these design decisions, which provide short-term benefits at the expense of the system's design integrity, is usually referred to as technical debt. In this paper, I propose a novel framework for assessing technical debt using a technique for detecting design flaws, i.e., specific violations of well-established design principles and rules. To make the framework comprehensive and balanced, it is built on top of a set of metrics-based detection rules for well-known design flaws that cover all of the major aspects of design such as coupling, complexity, and encapsulation. I demonstrate the effectiveness of the framework by assessing the evolution of technical debt symptoms over a total of 63 releases of two popular Eclipse® projects. The case study shows how the framework can detect debt symptoms and past refactoring actions. The experiment also reveals that in the absence of such a framework, restructuring actions are not always coherent and systematic, not even when performed by very experienced developers.

Performance Optimization of Wind Turbine Rotors with Active Flow Control (Part 2)

This article discusses the performance optimization of wind turbine rotors with active flow control. An extensive multi-parameter investigation with a thorough matrix-grading system was performed to identify the most suitable solution for industrial quality, short/mid-term implementation on actual utility scale wind turbines. A very wide selection of aerodynamic flow control solutions was analyzed based on extensive multi-disciplinary literature review and through aerodynamic and aeroelastic simulations. It is suggested that the trailing edge devices have the most favorable performance in the field of system integration and mechanical design performance. Compliant structures like the flexible flap keep the number of moving parts to a minimum while maintaining high performance and manufacturing simplicity. The use of flexible and elastic materials based on polymers or rubber material improves the lightning strike resistance of these solutions and allows for low-cost large-scale production. The actuator principle, sensitivity, and reliability are decisive parameters, and pneumatic actuators seem to strike a good balance between performance, cost, and reliability.

Analysis about Solar Water Heating System and Residential Building Integrated Design

The solar energy is a free from contamination of green energy, the application of solar energy in building is booming in recent years. Solar water heating system in the building and the organic combination are also getting forward. In order to meet the people of high quality life pursuit, more and more housing are designed with solar water heating system. The paper expounds the necessity and importance about solar water heating system integration and illustrates that residential building solar hot water system of building integrated principle, emphasize we should use the life cycle of the technology economic evaluation methods to speed up the establishment residential building solar water heating system and building integrated evaluation system.

Abstract IA5: Designing synthetic regulatory RNAs: New tools for temporal and spatial control in biological systems

Abstract Advances in synthetic biology are transforming our ability to design and build synthetic biological systems. While progress has been made in the design of complex genetic circuits, capabilities for constructing large genetic systems currently surpass our ability to design such systems. This growing “design gap” has highlighted the need to develop methods that support the generation of new functional biological components and scalable design strategies for complex genetic circuits that will lay the foundation for integrated biological devices and systems. As examples of functional RNA molecules playing key roles in the behavior of natural biological systems have grown over the past decade, there has been growing interest in the design and implementation of synthetic counterparts. Researchers are taking advantage of the relative ease with which RNA molecules can be modeled and designed to engineer functional RNA molecules that act as diverse components including sensors, regulators, controllers (ligand-responsive RNA regulators), and scaffolds. These synthetic regulatory RNAs are providing new tools for temporal and spatial control in biological systems. I will describe recent work in the design of RNA controllers and advances in addressing challenges faced in their broad implementation as user-programmed control systems in living cells. In particular, I will describe the development of high-throughput cell-based screens for rapidly generating synthetic regulatory RNAs with specified quantitative properties. I will also discuss how the application of synthetic regulatory RNAs as controllers in different biological pathways are leading to the elucidation of integrated systems design strategies and new capabilities for programming genetic systems. Citation Format: Christina D. Smolke. Designing synthetic regulatory RNAs: New tools for temporal and spatial control in biological systems [abstract]. In: Proceedings of the AACR Special Conference on Chemical Systems Biology: Assembling and Interrogating Computational Models of the Cancer Cell by Chemical Perturbations; 2012 Jun 27-30; Boston, MA. Philadelphia (PA): AACR; Cancer Res 2012;72(13 Suppl):Abstract nr IA5.

A Technical Framework and Roadmap of Embedded Diagnostics and Prognostics for Complex Mechanical Systems in Prognostics and Health Management Systems

Prognostics and Health Management (PHM) technologies have emerged as a key enabler to provide early indications of system faults and perform predictive maintenance actions. Implementation of a PHM system depends on accurately acquiring in real time the present and estimated future health states of a system. For electronic systems, built-in-test (BIT) makes it not difficult to achieve these goals. However, reliable prognostics capability is still a bottle-neck problem for mechanical systems due to a lack of proper on-line sensors. Recent advancements in sensors and micro- electronics technologies have brought about a novel way out for complex mechanical systems, which is called embedded diagnostics and prognostics (ED/EP). ED/EP can provide real-time present condition information and future health states by integrating micro-sensors into mechanical structures when designing and manufacturing, so ED/EP has a revolutionary progress compared to traditional mechanical fault diagnostic and prognostic ways. But how to study ED/EP for complex mechanical systems has not been focused so far. This paper explores the challenges and needs of efforts to implement ED/EP technologies. In particular, this paper presents a technical framework and roadmap of ED/EP for complex mechanical systems. The framework is based on the methodology of system integration and parallel design, which includes six key elements (embedded sensors, embedded sensing design, embedded sensors placement, embedded signals transmission, ED/EP algorithms, and embedded self-power). Relationships among these key elements are outlined, and they should be considered simultaneously when designing a complex mechanical system. Technical challenges of each key element are emphasized, and the corresponding existed or potential solutions are summarized in detail. Then a suggested roadmap of ED/EP for complex mechanical systems is brought forward according to potential advancements in related areas, which can be divided into three different stages: embedded diagnostics, embedded prognostics, and system integration. In the end, the presented framework is exemplified with a gearbox.

Study on CAD System for Semi-Armor-Piercing Warhead

Based on integration design method for semi-armor-piercing warhead, the design and implementation of CAD system are illuminated. The whole frame of CAD system is established. The function of integration design system is analyzed by IDEF0 method, and the functional modules are established. System software structure is founded based on system functional characteristic. Based on the technique of database and visualization, the key techniques of system implementation are analyzed in detail, which include database, visualization, etc. Finally, an application example of CAD system is given.

Study on Mine Railway Intelligent Transportation Digital System Design

According to the development of domestic and foreign Intelligent Railway, we integrate the needs of the mine railway system users, analyze internal data flow of the system, combine with the integration of the basic ideas and methodology, and use the model theory approach of model theory and system integration model. And then, we put forward mine railway intelligent transport digitizing systems integration model and design the overall framework of the mine railway intelligent transportation digitizing system