Topic
Design tool
About: Design tool is a research topic. Over the lifetime, 3864 publications have been published within this topic receiving 46401 citations.
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TL;DR: In this paper, a global wing analysis with a high detail model is conducted and the results are compared with results attained with a preliminary aircraft design tool, and the advantages are discussed.
Abstract: Preliminary design tools are essential during aircraft design to make conclusions about an aircraft’s performance. Generally this process employs methods of low and medium fidelity to create comparatively fast results for a high number of parameter variations. High-fidelity methods are needed to verify theses results and to consider components in more detail. A 100 PAX commercial aircraft with short take-off and landing capabilities of 800 m with circulation controlled high-lift devices is under investigation at the Collaborative
Research Centre SFB 880. In this paper, a global wing analysis with a high detail model is conducted and the results are compared with results attained with a preliminary aircraft design tool. Several detailed designs for the air feed system integration are proposed and examined regarding weight and stiffness characteristics on a representative high-lift device section model. Fluid–structure coupling is employed during all analyses to transfer aerodynamic loads and structural displacements. The aeroelastic impact of the slot stiffness on the Coandǎ effect during landing is then quantified. The attained aerodynamic performance results and structural characteristics of each configuration are compared and the advantages are discussed.
14 citations
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02 Oct 1988TL;DR: The application of personal computers as a design tool for microprocessor-based transmission-line fault locators is presented and five fault-locating algorithms are simulated and their performances are analyzed.
Abstract: The application of personal computers as a design tool for microprocessor-based transmission line fault locators is presented. Five fault-locating algorithms are simulated, and their performances are analyzed. Simulation results using a 400 kV transmission line model are presented. Simulation studies based on the data obtained from a laboratory model of a 400 kV, 510 km transmission line are also discussed. It is noted that the methods outlined are useful for relay design engineers for testing various fault locator designs and analyzing their performances. >
14 citations
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TL;DR: In this article, the hydrodynamics of wave induced flow within the interstices of concrete blocks is simulated by making use of advanced, but well tested, CFD techniques to integrate RANS equations.
14 citations
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23 Jan 2007TL;DR: Progress is described in modeling techniques for design and verification of complex integrated systems, in circuit and yield optimization tools for analog/RF circuits, as well as in signal integrity analysis methods such as EMC/EMI analysis.
Abstract: The scaling of CMOS technology into the nanometer era enables the fabrication of highly integrated systems, which increasingly contain analog and/or RF parts. However, scaling into the nanometer era also brings problems of leakage power, increasing variability and degradation, reducing supply voltages and worsening signal integrity conditions, all this in combination with tightening time-to-market constraints. Design methodologies and tools need to be developed to address these problems. This invited paper describes progress in modeling techniques for design and verification of complex integrated systems, in circuit and yield optimization tools for analog/RF circuits, as well as in signal integrity analysis methods such as EMC/EMI analysis.
13 citations
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01 Sep 1988TL;DR: This paper presents the constraint representation that supports the analysis and explanation process of schema constraints, and shows how this representation allows both inherent and explicit constraints to be analyzed in the same manner.
Abstract: Constraint analysis is a design tool for object-oriented database environments that makes use of knowledge about constraints to support the design of user views and the specification of propagation actions. The constraint analysis process is supported by the formal, uniform representation of schema constraints. The formal representation supports the ability to analyze and explain constraints; the uniform representation allows both inherent and explicit constraints to be analyzed in the same manner. Using constraint analysis, the effects of constraints can be made explicit at design time to support the flexible specification of database operations that maintain object integrity. This paper presents the constraint representation that supports the analysis and explanation process.
13 citations