...Hao Liu; Guoqing Li; Chenyang Kang; Yunhong Ruan; Ruofan Wang; Xingen Lu Improving the sealing performance of labyrinth seal is beneficial in reducing the loss of downstream components as well as improving the aero-engines' efficiency. Meanwhile, the optimization of labyrinth seal is more cost...

... heat exchanger features curved fins to promote flow turning and decrease pressure losses compared to more conventional straight fin heat exchangers. Conceptual design and duct shape optimization has been carried out which produced integrated ICD heat exchanger designs with significantly lower air-side...

... quality of automatically optimized NN models assuring reproducibility and a solid foundation for future utilization of the developed methods by turbomachinery engineers without a need to be an ML expert. The direct comparison of the improved approach with the alternative Auto-ML tools was not performed...

... volatility, and provide services to the grid. In such a situation, in order to properly manage these crucial technologies, and thus guarantee the economic viability of the operation, it is essential to properly optimize the dispatch and define the best scheduling. This paper considers a gas turbine combined...

... the introduction of digital tools into in-person education. The “Process Optimization” course at Mälardalen University (MDU) is reformed to operate in a digitally enhanced classroom mode. The course covers a variety of optimization methods applied on thermal and fluid machinery such as systems of compressors...

... as much as possible. In this work, an optimization strategy for reducing the flowrate fed to tilting pad journal bearings (TPJBs) is proposed. An artificial neural network (ANN) is trained to estimate the static and dynamic performance of the bearings. The training dataset is built with a Reynolds-based...

... to that. This paper explores the impact of optimal implementation and scheduling of VRS and power management strategy for conventional and hybrid-electric rotorcraft on energy, fuel, and emissions footprint. A multidisciplinary simulation framework for rotorcraft performance combined with models for engine...

...Maksym Burlaka; Leonid Moroz The paper describes the study performed by SoftInWay in the scope of the Phase I SBIR project funded by the National Aeronautics and Space Administration (NASA). The project was dedicated to a study of optimization of the variable geometry reset angle schedules...

... methodology for the design, performance assessment, and optimal implementation of HEPSs for conceptual rotorcraft has been developed. A multidisciplinary approach is devised comprising models for rotor aerodynamics, flight dynamics, HEPS performance, and weight estimation. All models are validated using...

...   robust rotordynamics surface response design of experiments multivariate multiresponse modeling optimization tilting pad bearings sensitivity analysis manufacturing normal variation 05 06 2020 26 10 2020 31 03 2021 e-mail:  leourbiola@gmail.com Table 10 shows...

... overcome the flight speed limitations of conventional helicopters with additional lifting and propulsive components. Further to operational benefits, these augmentations provide additional flight control parameters, resulting in control redundancy. This work aims to investigate the impact of optimal...

... and training different ANN models with feed-forward multilayer perceptron (MLP) structure. The code consisted of various training functions, different number of neurons as well as a variety of transfer (activation) functions for hidden and output layers of the network. It was shown that the optimal model...

... 2011 26 08 2011 air pollution control crude oil diesel engines optimisation petroleum Taguchi methods diesel engine NO x emission MRSN optimization orthogonal array Biodiesel, a clean burning renewable CI engine fuel, has been accepted by many countries as a partial...

... and robustness of the model, the paper recommends an optimization routine stage on the existing model that comprises results of more pump shapes (obtained through field projects or extended laboratory work). The optimization procedure suggested would come a long way to provide a lasting solution for the search...

...Christos I. Papadopoulos; Pantelis G. Nikolakopoulos; Lambros Kaiktsis An optimization study of trapezoidal surface texturing in slider micro-bearings, via computational fluid dynamics (CFD), is presented. The bearings are modeled as micro-channels, consisting of a moving and a stationary wall...

...Costin D. Untaroiu; Alexandrina Untaroiu Design of a rotor-bearing system is a challenging task due to various conflicting design requirements, which should be fulfilled. This study considers an automatic optimization approach for the design of a rotor supported on tilting-pad bearings. A numerical...

... optimize the FLC, conduct tests to compare the FLC with conventional controls in scenarios relevant to the application. We have designed, implemented, and tested our simulation to the exhaust temperature control problem of a gas turbine problem. The FLC, plant simulation, existing control configuration...

...Wang Qiuwang; Liang Hongxia; Xie Gongnan; Zeng Min; Luo Laiqin; Feng ZhenPing In recent years, the genetic algorithm (GA) technique has gotten much attention in solving real-world problems. This technique has a strong ability for global searching and optimization based on various objectives...