Yu Cai

Yu Cai
Georgia Institute of Technology | GT · School of Aerospace Engineering

Master of Science

About

28
Publications
2,105
Reads
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123
Citations
Citations since 2017
27 Research Items
123 Citations
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20172018201920202021202220230102030
20172018201920202021202220230102030
Additional affiliations
January 2016 - present
Georgia Institute of Technology
Position
  • Researcher
Education
January 2018 - May 2022
Georgia Institute of Technology
Field of study
  • Aerospace Engineering
August 2015 - December 2017
Georgia Institute of Technology
Field of study
  • Aerospace Engineering
August 2011 - May 2015
University of Illinois, Urbana-Champaign
Field of study
  • Aerospace Engineering

Publications

Publications (28)
Conference Paper
This paper evaluates the potential benefits of applying hybrid parallel propulsion architectures to future turboprop aircraft that are expected to enter into service in 2030. Two baseline aircraft models are established by infusing viable 2030 airframe and engine technologies on state-of-the-art 19-passenger and 50-passenger aircraft models. Two pa...
Article
This paper explores the design spaces of a thin-haul and a regional aircraft with parallel hybrid-electric propulsion architectures for a 2030 entry into service date. Notional technology reference aircraft models were developed for a 19- and a 50-passenger aircraft based on publicly available data on Beechcraft 1900D and ATR 42-600, respectively....
Conference Paper
Full-text available
View Video Presentation: https://doi.org/10.2514/6.2022-3204.vid The Parallel Electric-Gas Architecture with Synergistic Utilization Scheme (PEGASUS) is a regional aircraft concept developed by NASA’s Aeronautics Systems Analysis Branch to explore the opportunities created by the technology of electric aircraft propulsion. It features a distributed...
Conference Paper
This paper presents a parametric modeling and integrated sizing approach for a charge-depleting parallel hybrid electric aircraft. The hybrid powertrain model is integrated within a regional aircraft with an entry-into-service of 2030-2035. In addition to the physical architecture, different operational modes enabled by the hybridization of the pro...
Article
Traditional aircraft conceptual design primarily involves determination of top-level sizing parameters, resulting in an initial design which satisfies specified point-performance constraints while flying the so-called design mission. In practical scenarios, commercial aircraft are also expected to operate optimally in the actual missions they fly w...
Conference Paper
View Video Presentation: https://doi.org/10.2514/6.2022-1994.vid This paper explores the design spaces of a thin-haul and a regional aircraft with parallel hybrid electric propulsion architectures and an entry into service date of 2030. Notional technology reference aircraft models were developed for a 19- and a 50-passenger aircraft based on publi...
Article
Airworthiness certification is a mandatory but expensive process in aircraft development. To reduce certification cost, it is desired to incorporate certification considerations into aircraft early design stages. The tradeoff between performance and certification constraints and the interactions between the behind-the-scene disciplines require a mu...
Article
The push for more-electric aircraft (MEA) has motivated numerous studies to quantify and optimize the impact of subsystem electrification in early design phases. Past studies on multi-objective optimization of MEA show a clear benefit over conventional architectures when no constraints are placed on the number of subsystems electrified at once. In...
Conference Paper
Full-text available
View Video Presentation: https://doi.org/10.2514/6.2021-2433.vid The conceptual design stage requires rapid evaluation of aerodynamic characteristics for a number of design candidates at multiple flight conditions. Low-fidelity aerodynamic analysis methods may lose accuracy when being applied to unconventional configurations, while high-fidelity me...
Conference Paper
View Video Presentation: https://doi.org/10.2514/6.2021-2448.vid The conceptual design phase traditionally employs the “tail volume ratio” method to initially size the horizontal and vertical tails on tube-and-wing aircraft. Such method is no longer applicable for certain hybrid wing body (HWB) configurations where the use of elevons and the absenc...
Conference Paper
Aircraft families are effectively used in the commercial market for reducing costs and for rapidly responding to emerging market needs. A conceptual-level platform design decision support environment with cost evaluation is created for a commercial transport aircraft family through an integrated Model-Based Systems Engineering (MBSE) approach in Ma...
Conference Paper
Full-text available
The aerospace industry’s push for More-Electric Aircraft (MEA) has motivated numerous studies to quantify and optimize the impact of subsystem electrification in early design phases. Past studies on multi-objective optimization of MEA show a clear benefit over conventional architectures when no constraints are placed on the number of subsystems ele...
Conference Paper
Full-text available
The hybrid wing body (HWB) configuration is a paradigm shift in commercial transport aircraft design in terms of environmentally responsible characteristics and significant performance improvements over the conventional tube-and-wing configuration. However, the sizing methods and analysis tools used in conceptual design of tube-and-wing aircraft are n...
Conference Paper
Traditional aircraft conceptual design primarily involves determination of top-level sizing parameters, resulting in an initial design which satisfies specified point-performance constraints while flying the so-called design mission. In practical scenarios, commercial aircraft are also expected to operate optimally in the actual missions they fly w...
Conference Paper
The drive for more efficient flying vehicles in all categories may necessitate a significant departure from the tube-and-wing or rotary-wing norms that have been the mainstay of aviation for many decades. This poses challenges for predicting the aerodynamic characteristics and the weight build-up of such unconventional vehicles in early design phas...
Article
The aerospace industry’s current trend towards novel or More Electric architectures results in some unique challenges for designers due to both the scarcity or absence of historical data and a potentially large combinatorial space of possible architectures. These add to the already existing challenges of attempting to optimize an aircraft design in...
Conference Paper
Electrification of the major aircraft subsystems, in particular the environmental control system, is of significant interest to the aerospace industry due to the potential for fuel savings through reduced non-propulsive power usage. To evaluate and assess the impact of such subsystem architectures, it is necessary to integrate the sizing of the eng...
Article
The use of active flow control technology for augmentation of aircraft aerodynamic performance is of considerable interest to the aerospace industry. Research to date has included subscale and full-scale wind-tunnel experiments as well as limited flight-test demonstrations. Out of several possible applications of active flow control to commercial a...
Article
Full-text available
Active Flow Control is at present an area of considerable research, with multiple potential aircraft applications. While the majority of research has focused on the performance of the actuators themselves, a system-level perspective is necessary to assess the viability of proposed solutions. This paper demonstrates such an approach, in which major...

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