Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 164 for “"multidisciplinary design"”.
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Financial analysis in multidisciplinary design optimization
… across multiple disciplines and find the ideal design which maximizes benefit to the company and society. Given the complexity of working with multiple disciplines and stakeholders, it is important to have a single metric which teams and organizations can use to choose the best design. Since …
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Multifidelity methods for multidisciplinary design under uncertainty
For computational design and analysis tasks, scientists and engineers often have available many different simulation models. The output of each model has an associated uncertainty that is a result of the modeling process. This uncertainty is referred to as model discrepancy and is defined as the …
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Multidisciplinary design of an integrated microburst alerting system
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1993.
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Multidisciplinary design problem solving on product development teams
… interpret and communicate about technical design problems while working on product development teams. Data was collected on 98 cases via interviews with engineers at LAI member companies. For approximately one-third of the cases, two engineers with different backgrounds were interviewed, …
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Multidisciplinary design optimization of part geometry in CAD
Multidisciplinary design optimization (MDO) is the process of searching for designs which best satisfy a set of objectives, while respecting that the appropriateness of a design is dependent on more than just a single discipline. Traditionally, MDO has been conducted on a higher system level where …
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Multidisciplinary Design Optimization of Low-Noise Transport Aircraft
… objective of this research is to examine how to design low-noise transport aircraft using Multidisciplinary Design Optimization (MDO). The subject is approached by designing for low-noise both implicitly and explicitly. The explicit design approach involves optimizing an aircraft while explicitly …
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Data-Driven Multidisciplinary Design and Optimisation of Future Aircraft
… thesis addresses the challenge of aerodynamic design optimisation and multi-disciplinary optimisation by introducing novel approaches that leverage model-order reduction (MOR) techniques and advanced machine learning (ML) methodologies to significantly enhance computational efficiency compared …
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Application of Multidisciplinary Design Optimisation to Engine Calibration Optimisation.
… maps are required as smooth as possible. The Multidisciplinary Design Optimisation (MDO) Frameworks have been studied to develop the optimisation process for the steady state Diesel engine calibration optimisation problem. Two MDO strategies are proposed for formulating and addressing this …
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Surrogate Models for Transonic Aerodynamics for Multidisciplinary Design Optimization
Multidisciplinary design optimization (MDO) requires many designs to be evaluated while searching for an optimum. As a result, the calculations done to evaluate the designs must be quick and simple to have a reasonable turn-around time. This makes aerodynamic calculations in the transonic regime …
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Multidisciplinary Design Optimization of a Strut-Braced Wing Aircraft
The objective of this study is to use Multidisciplinary Design Optimization (MDO) to investigate the use of truss-braced wing concepts in concert with other advanced technologies to obtain a significant improvement in the performance of transonic transport aircraft. The truss topology introduces …
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An Integrated Risk Analysis Methodology in a Multidisciplinary Design Environment
<p>Design of complex, one-of-a-kind systems, such as space transportation systems, is characterized by high uncertainty and, consequently, high risk. It is necessary to account for these uncertainties in the design process to produce systems that are more reliable. Systems designed by including …
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Multidisciplinary Design Optimization of an Extreme Aspect Ratio HALE UAV
ABSTRACT Multidisciplinary Design Optimization of an Extreme Aspect Ratio HALE UAV Bryan J. Morrisey Development of High Altitude Long Endurance (HALE) aircraft systems is part of a vision for a low cost communications/surveillance capability. Applications of a multi payload aircraft operating for …
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A study in digital prototyping and multidisciplinary design team collaboration
… collaboration between engineering and industrial design students in solving biomedical design tasks, as well as gathering information on student perceptions of the relative usefulness of digital prototyping tools employed in the development of the design projects, and (2) reviewed the design …
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Multidisciplinary design optimization of dynamic systems using surrogate modeling approach
… for efficient solution of multi-disciplinary design optimization (MDO) of dynamic systems. Many of the MDO problems in dynamic systems design often involve computationally expensive system simulations, severely limiting their design optimization. This work demonstrates a novel method which …
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A case study of multidisciplinary design optimization implementation process management
Multidisciplinary Design Optimization (MDO) has been developed in the last decades in the aircraft industry with the aim of optimizing complex products while cutting costs and product development time. Despite this, MDO still has not propagated through industry to become common practice. There are …
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Clean Wing Airframe Noise Modeling for Multidisciplinary Design and Optimization
… so that it can capture the effect of different design variables on the clean wing airframe noise such as the aircraft speed, lift coefficient, and wing geometry. It can also capture three-dimensional effects which become important at high lift coefficients, since the characteristic velocity and …
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Algorithmic Modifications to a Multidisciplinary Design Optimization Model of Containerships
When designing a ship, a designer often begins with "an idea" of what the ship might look like and what specifications the ship should meet. The multidisciplinary design optimization model is a tool that combines an analysis and an optimization process and uses a measure of merit to obtain what it …
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Structural analysis and multidisciplinary design of flexible fluid loaded composite canard
… of the composite laminates such that various design objectives can be achieved just by selecting the proper arrangement of ply orientation and thickness. Three numerical optimization techniques were applied respectively in the structural optimization design which aims at achieving the best …
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Application of Multidisciplinary Design Optimisation Frameworks for Engine Mapping and Calibration
… the feasibility and effectiveness of the Multidisciplinary Design Optimisation (MDO) frameworks to optimise the multi-attribute steady state engine calibration optimisation problems. Accordingly, this research is concentrated on two aspects of the steady state engine calibration …
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Design coupling analysis in multidisciplinary design optimization and control co-design
The design of complex engineering systems involves multiple interconnected, or coupled, disciplines. The relationships between these disciplines are not always well-known, especially for emerging technologies. Optimizing these systems can be a challenging task, especially if the designer has …
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