Papers by Keyword: Engineering Design

Abstract: This paper proposes and presents the proof of concept for an improvised device adapted from the condom tamponade used for controlling atonic primary postpartum haemorrhage in resource-poor settings. The device has been designed to address the setbacks of the conventional condom tamponade. The setbacks of the condom tamponade were assessed. Using the systematic engineering design process, a device was designed to address the setbacks of the condom tamponade. The device comprises an inflation/deflation system, blood drainage system and clamping system. Results from testing show that for an inexperienced user, the device has quicker inflation (3.36 ± 1.70 minutes/ 500 ml) and faster set-up time (3.60 ± 1.50 minutes), as compared to the conventional condom tamponade. The clamping system of the device also ensures effective control of fluid dynamics and prevents backflow. The device, however, was not tested on human subjects to prove its efficacy for actual treatment of patients. The device also can be easily and quickly set-up and operated by frontline healthcare providers with limited expertise, in resource-poor settings. It has further been designed for safety (use of biocompatible materials and elimination of sharp edges for the parts expected to have direct contact with the uterus).

Abstract: The paper presents a decision making support system for choosing an optimal variant of technical products. The problem is formulated and its characteristic features outlined. The decision making support system implements various approbated methods for solving the formulated problem. Its capabilities are extended with an advanced algorithm, based on ant colony optimization, and integrated as a program module in the decision making support system. An example problem is solved, showing some of the capabilities of the system, and the integrated algorithm.

Abstract: CNC technology is mechanical movement with digital information and work process control technology, data processing is the reverse engineering of important technical aspects, which determines whether the subsequent model reconstruction process easy and accurate manner. In this paper, CNC machining complex surfaces feature full potential of existing CNC equipment, automatic control system designed to make CNC machining equipment to achieve higher processing speed, high precision machining, and CNC equipment in order to achieve high efficiency machining.

Abstract: Based on the modernization of educational multimedia video technology is the primary means of education. Analysis of the Web-based virtual learning system design objectives and design ideas, describes the basic architecture of the virtual learning system, architecture, the role of the layers has been described, while the virtual learning system online experiment module design and virtual teaching scene were studied; Finally, the Web-based virtual system online browsing courseware, whiteboard and online experiments and other key technologies to achieve.

Abstract: Well testing engineering design must be completed according to the geological and engineering tasks and the actual condition of the well before logging, and then the test preparation completes according to the design. The whole construction process is carried out in accordance with the engineering design, For the complex test cases, it is need to adjust the testing process according to the basis data of engineering design and actual situation, engineering design is very important for the construction of production profile testing of horizontal wells. Engineering design can improve the test efficiency, ensure the accuracy of test data and test safety, reduce the cost of testing. This paper analyzed the role of engineering design in the testing construction and expounds the influence of engineering design for test construction by way of example.

Abstract: It is very important to use the science, technology and cultural elements in the process is the landscape of expression, and advanced engineering technology is the basis for the development of the urban landscape. In the urban construction area of modern technology into the traditional culture of the city can do the development and continuation of traditional culture, and promote the development of the urban landscape systems. This paper presents a dynamic urban landscape design, a variety of traits city weather conditions, urban context, materials technology, biological populations, ecological flows were studied. Through analysis, can be used in shaping the city's landscape, and achieved good results.

Abstract: To meet the demand of the signal stable at high speed, the key is control precision for the characteristic impedance of FPC. This article is intended to study the strip-line structure for reducing cross-talk (noise) and their theoretical analysis and calculation. By varying effect factor and countermeasure in the production process of FPC, and the optimal process parameter have been obtained. By using the some testing technology, the impedance of strip-line in FPC have been tested.

Abstract: A set of Mindlin plates bonded together is subjected to loading by impact, which is considered to represent a generic engineering structure and is analyzed through numerical simulation. The objective is to identify optimum configuration in terms of loading, structural dimensions, material properties and composite layup associated with micrometeorites impacts on spacecraft that will not penetrate into its structure. Following the algorithm developed for the problem, the work comprises an in-depth analysis of a generic flat plate structure subjected to impact and numerical simulation. The analyses are based on dynamic response with emphasis on the elastic region. The direct numerical simulation is carried out in parallel for the analysis, synthesis, parametric study and optimization. As simulation case study, the panel structure response to impact loading by a spherical rigid body at certain velocity perpendicular to the panel plate itself and numerical simulation is carried out as appropriate. Simulation results are validated through comparison with analytical work. The entire scheme carried out in this work is a novel comprehensive approach for the structural design of non-penetrated impact on metallic composites. The results show that the use of composites, in particular the bi-metallic composite, is instrumental in tailoring the plate materials to achieve non-penetrating impact.

Abstract: Finite element analysis (FEA) has become an increasingly important tool in evaluating structural performance of platforms. This includes the use of this tool to perform strength, stability checks, optimisation of structural design upon subjected to design loads as well as to perform failure investigation of platforms upon subjected to special loading conditions such as impacts. Traditionally, small and medium enterprises utilises laboratory (physical) testing and heuristic experience to fabricate and test the platforms, nonetheless this approach is deemed too time consuming and cost demanding. Therefore, this study aims at reconstructing the actual design based on engineering drawings as well as performing stress analysis by means of a commercial FEA software package, ANSYS v14.0 by investigating the effects of two distinct loading impacts on a mild steel platform. The maximum stress and maximum displacement values obtained via the FEA simulation was then compared with values obtained via theoretical computation. The results obtained via the FEA simulation was found to be in good agreement with the exact solution. The present study is non-trivial as it contributes towards the knowledge in the design and optimisation of complex steel structures.

Abstract: The advanced intelligent optimization algorithms used in water distribution network model study, currently in the pipe network optimization theory is a new, has great research value and practical value of the subject. This paper proposes a decision-making functions to optimize the drainage network system, by choosing the model using intelligent optimization algorithm for computing the most cost-caliber combination, to achieve the renovation and expansion of urban water supply network technical support.