scholarly journals Aerodynamic aspects in the development of morphing winglet for a regional aircraft

2021 ◽  
Author(s):  
Prakash Paudel
Keyword(s):  
Bending Moment ◽  
Design Parameters ◽  
Technology Readiness ◽  
Proper Selection ◽  
Technology Readiness Level ◽  
Actuation System ◽  
Readiness Level ◽  
Stall Angle ◽  
Wing Deformation ◽  
Selection Of

An aerodynamic analysis is conducted for morphing winglets on a regional aircraft. The optimum drag, bending moment, stall angle and maximum lift coeffcient are evaluated for various mission segments by varying winglet design parameters. Aero-elastic studies are conducted in order to incorporate wing deformation effects in addition to exploring maneuver load alleviation capability of the morphing winglet. The results show drag benefit up to 1% in cruise and wing bending moment and winglet bending moment benefits of 2.4% and 63% at 2.5g symmetric maneuver conditions. The total aircraft drag benefit translates to additional allowable structural weight that can be applied to the design of winglet actuation system. The morphing winglet shows superior stall behavior and attenuates high wing loads. The estimated wing-winglet loads will help in proper selection of actuators. This study is also expected to help in elevating technology readiness level of the morphing winglet technology.

scholarly journals Aerodynamic aspects in the development of morphing winglet for a regional aircraft

2021 ◽  
Author(s):  
Prakash Paudel
Keyword(s):  
Bending Moment ◽  
Design Parameters ◽  
Technology Readiness ◽  
Proper Selection ◽  
Technology Readiness Level ◽  
Actuation System ◽  
Readiness Level ◽  
Stall Angle ◽  
Wing Deformation ◽  
Selection Of

An aerodynamic analysis is conducted for morphing winglets on a regional aircraft. The optimum drag, bending moment, stall angle and maximum lift coeffcient are evaluated for various mission segments by varying winglet design parameters. Aero-elastic studies are conducted in order to incorporate wing deformation effects in addition to exploring maneuver load alleviation capability of the morphing winglet. The results show drag benefit up to 1% in cruise and wing bending moment and winglet bending moment benefits of 2.4% and 63% at 2.5g symmetric maneuver conditions. The total aircraft drag benefit translates to additional allowable structural weight that can be applied to the design of winglet actuation system. The morphing winglet shows superior stall behavior and attenuates high wing loads. The estimated wing-winglet loads will help in proper selection of actuators. This study is also expected to help in elevating technology readiness level of the morphing winglet technology.

scholarly journals Estimaton of technology readiness level of tender proposal in terms of methodology TPRL

2020 ◽  
Vol 6 (1-2) ◽  
pp. 88-99
Author(s):  
A. N. Petrov ◽  
A. V. Komarov
Keyword(s):  
Technology Development ◽  
Technology Readiness ◽  
Federal Target Program ◽  
Technological Readiness ◽  
Russian Scientific ◽  
Technology Readiness Level ◽  
Proposed Model ◽  
Readiness Level ◽  
Subsequent Selection ◽  
Selection Of

The article describes a model for assessing the level of technological readiness of projects submitted to the competition for funding, built using the TPRL methodology. The model can be used along with other tools for evaluating competitive applications to increase the accuracy and objectivity of the expert evaluation of competitive projects. Based on the results obtained using the proposed model, ranked lists of participating projects can be compiled for the subsequent selection of winning projects. The developed model for assessing the level of technology development hasbeen tested for projects of the federal target program «Research and Development in Priority Directions for the Development of the Russian Scientific and Technological Complex for 2014-2020».

scholarly journals Review on District Cooling and Its Application in Energy Systems

2021 ◽  
Author(s):  
Sana Sayadi ◽  
Jan Akander ◽  
Abolfazl Hayati ◽  
Mathias Cehlin
Keyword(s):  
Environmentally Friendly ◽  
Primary Energy ◽  
European Countries ◽  
Design Parameters ◽  
Technology Readiness ◽  
Cooling Systems ◽  
Technology Readiness Level ◽  
Electricity Use ◽  
Readiness Level ◽  
Cost Efficient

This chapter investigates the implementation of district cooling systems by exploring several research studies reported in the literature. The topics addressed include typologies and design parameters, benefits and limitations, applications of the system, and the technology readiness level. District cooling systems are generally regarded as cost-efficient and environmentally friendly solutions. One might think that district cooling is only a solution for areas with a very warm climate. However, based on the reported results of the surveyed studies, the number of operating district cooling systems has increased over the years, with the Scandinavian countries taking the lead in this market within European countries. Implementation of these systems concluded reduction in primary energy and electricity use, they also proved to be an environmentally efficient way.

Evaluation of the maturity level of biomass electricity generation technologies using the technology readiness level criteria

2021 ◽  
Vol 295 ◽  
pp. 126426
Author(s):  
Fernando Bruno Dovichi Filho ◽  
York Castillo Santiago ◽  
Electo Eduardo Silva Lora ◽  
José Carlos Escobar Palacio ◽  
Oscar Agustin Almazan del Olmo
Keyword(s):  
Electricity Generation ◽  
Technology Readiness ◽  
Maturity Level ◽  
Technology Readiness Level ◽  
Readiness Level

scholarly journals Improving the robustness of a service robot for continuous indoor monitoring: An incremental approach

2021 ◽  
Vol 18 (3) ◽  
pp. 172988142110121
Author(s):  
David Portugal ◽  
André G Araújo ◽  
Micael S Couceiro
Keyword(s):  
Real World ◽  
Service Robots ◽  
Service Robot ◽  
Technology Readiness ◽  
Incremental Approach ◽  
Technology Readiness Level ◽  
Readiness Level ◽  
Software And Hardware ◽  
Indoor Monitoring

To move out of the lab, service robots must reveal a proven robustness so they can be deployed in operational environments. This means that they should function steadily for long periods of time in real-world areas under uncertainty, without any human intervention, and exhibiting a mature technology readiness level. In this work, we describe an incremental methodology for the implementation of an innovative service robot, entirely developed from the outset, to monitor large indoor areas shared by humans and other obstacles. Focusing especially on the reliability of the fundamental localization system of the robot in the long term, we discuss all the incremental software and hardware features, design choices, and adjustments conducted, and show their impact on the performance of the robot in the real world, in three distinct 24-h long trials, with the ultimate goal of validating the proposed mobile robot solution for indoor monitoring.

scholarly journals Some aspects of technology transfer

2018 ◽  
Vol 178 ◽  
pp. 08006
Author(s):  
Alexei Toca ◽  
Vadim Iaţchevici ◽  
Tatiana Niţulenco ◽  
Nicolae Rusu
Keyword(s):  
Life Cycle ◽  
Technology Transfer ◽  
Technology Readiness ◽  
Technology Readiness Level ◽  
Technological Transfer ◽  
Readiness Level ◽  
Functional Orientation ◽  
Technology Life Cycle

Technological transfer is a complex and varied process, being realized out at different stages of technology readiness level. Being essentially a trading, technology transfer is fully subject to market laws. The technology transfer strategy and tactics are strongly influenced by the degree of technology's readiness level, systemic character, functional orientation and universality, technical and economic determination degrees that can be specified and determined in accordance with the stages of technology life cycle.

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