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.
Results
Showing 1 to 20 of 81 for “"MDO"”.
-
Addition of Features to an Existing MDO Model for Containerships
… limited variables and constraints. A prototype MDO tool is developed based on Microsoft's COM framework using ATL. With this design, the modules can be modified with minimum programming effort. The user interface gives the user flexibility to manipulate relevant parameters that affect the …
-
A coarse-grained variable-complexity MDO paradigm for HSCT design
… order. Multidisciplinary optimization (MDO), a formal methodology for the integration of these disciplines, is evolving toward methods capable of replacing the traditional sequential methodology of aerospace vehicle design by concurrent algorithms, with both an overall gain in product …
-
An Automated Optimal Design of a Fan Blade Using an Integrated CFD/MDO Computer Environment
… Multidisciplinary Design Optimization (MDO) algorithms. Well known evolutionary type optimization algorithms include the Particle Swarm Optimization (PSO), Response Surface Optimization (RSO) and Genetic (GA) Algorithms. The benchmark case study is the optimal design of a low speed fan …
-
An Approach to Incorporate Additive Manufacturing and Rapid Prototype Testing for Aircraft Conceptual Design to Improve MDO Effectiveness
… design multidisciplinary design optimization (MDO). Both objectives are evaluated in terms of data quality, time, and cost. FDM(TM) and PolyJet AM processes were used for model production at low cost and time. Several models from a representative tailless configuration, ICE 101, were printed …
-
Multidisciplinary Design Optimization of Nose Landing Gears with Two Degrees of Freedom Considering Out of Plane Loading and Actuator Performance
Multidisciplinary design optimization (MDO) is a mathematical optimization technique for designing engineering systems that involve multiple disciplines. By implementing the MDO technique, engineers can design complex systems by simultaneously considering multiple branches of physics without manual …
-
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 …
-
HIGH EFFICIENCY AXIAL DIFFRACTION OUTPUT SCHEMES FOR THE A6 RELATIVISTIC MAGNETRON
… magnetron with diffraction output horn antenna (MDO). The primary goal of the experiments was to verify simulated 70% efficiency and greater than 1 GW of output power from the MDO. A less expensive vii compact MDO' variant, essentially an A6 magnetron with a flat-plate mode converter and …
-
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 …
-
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 …
-
Application of Multidisciplinary Design Optimisation to Engine Calibration Optimisation.
… 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 optimisation problem, which are All At …
-
Developing a Design Space Model Using a Multidisciplinary Design Optimization Schema in a Product Lifecycle Management System to Capture Knowledge for Reuse
… as a multidisciplinary design optimization (MDO) schema. Knowledge of a design space can be modeled by using a MDO schema to represent the design process. However, current MDO frameworks used to create this schema lack the scope to capture enterprise wide knowledge for reuse and …
-
Software for Multidisciplinary Design Optimization of Truss-Braced Wing Aircraft with Deep Learning based Transonic Flutter Prediction Model
… for multidisciplinary design optimization (MDO) called DELWARX. DELWARX also includes a transonic flutter analysis approach that is computationally very efficient, yet accurate enough for conceptual design and optimization studies. This transonic flutter analysis approach is designed for …
-
Multidisciplinary design optimization of dynamic systems using surrogate modeling approach
… 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 approximates the …
-
Development of a Multi-Disciplinary Design Optimization Framework for a Strut-Braced Wing Transport Aircraft in PACELAB APD 3.1
… preliminary design tool with potential for MDO applications, for higher fidelity with physics-based instead of empirical methods and to enable the analysis of nonconventional aircraft configurations. The implementation of these methods was first validated against both existing models and …
-
Development of Multidisciplinary Design Optimization Process for a Large Scale Hybrid Composite Wind Turbine Blade
… of a multidisciplinary design optimization (MDO) of a large scale hybrid composite wind turbine blade is performed. Multiple objectives are considered in the MDO process to maximize annual energy production and lifetime profit, minimize weight and power production rate. A wind turbine blade …
-
Financial analysis in multidisciplinary design optimization
MDO is moving beyond the small group of NASA and Aerospace companies and is increasingly being adopted by organizations around the world. With MDO, we can optimize across multiple disciplines and find the ideal design which maximizes benefit to the company and society. Given the complexity of …
-
Application of Multidisciplinary Design Optimisation Frameworks for Engine Mapping and Calibration
… 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 optimisation: 1) development of a sequential …
-
Aeroelastic Analysis of Truss-Braced Wing Aircraft: Applications for Multidisciplinary Design Optimization
… through a multidisciplinary design optimization (MDO) framework. Several improvements to previous analysis methods were developed and validated. Firstly, a flutter constraint was developed and the effects of the constraint on the MDO of TBW transport aircraft for both medium-range and long-range …
-
Multidisciplinary Design Optimization of a Strut-Braced Wing Aircraft
… 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 several opportunities. A …
Page 1 of 5