scholarly journals Review of Passive Electromagnetic Devices for Vibration Damping and Isolation

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Efren Diez-Jimenez ◽  
Rocco Rizzo ◽  
Maria-Jesus Gómez-García ◽  
Eduardo Corral-Abad
Keyword(s):  
Lower Cost ◽  
Mechanical Vibration ◽  
Vibration Damping ◽  
Technology Readiness ◽  
Damping Capacity ◽  
Electromagnetic Devices ◽  
Technology Readiness Level ◽  
Recent Developments ◽  
Readiness Level ◽  
Application Fields

Passive electromagnetic devices for vibration damping and isolation are becoming a real alternative to traditional mechanical vibration and isolation methods. These types of devices present good damping capacity, lower cost, null power consumption, and higher reliability. In this work, a state-of-the-art review has been done highlighting advantages and drawbacks, application fields, and technology readiness level of most recent developments. In addition, a general introductory section relates presents key considerations that any engineer, electrical or mechanical, needs to know for a deep comprehension and correct design of these types of devices.

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.

ECAT: An Engine Component Aerothermal Facility at the University of Oxford

2017 ◽  
Author(s):  
Benjamin Kirollos ◽  
Roderick Lubbock ◽  
Paul Beard ◽  
Frédéric Goenaga ◽  
Anton Rawlinson ◽  
...  
Keyword(s):  
New Technologies ◽  
Pressure Ratio ◽  
High Technology ◽  
Technology Readiness ◽  
Lean Burn ◽  
University Of Oxford ◽  
Technology Readiness Level ◽  
Engine Component ◽  
Readiness Level ◽  
The University

This paper describes a new engine-parts facility at the University of Oxford for high technology-readiness-level research, new technology demonstration, and for engine component validation. The Engine Component AeroThermal (ECAT) facility has a modular working section which houses a full annulus of engine components. The facility is currently operated with high-pressure nozzle guide vanes from a large civil jet-engine. A high degree of engine similarity is achieved, with matched conditions of Mach number, Reynolds number, and coolant-to-mainstream pressure ratio. For combustor-turbine interaction studies, a combustor simulator module is used, which is capable of both rich-burn and lean-burn combined temperature, swirl and turbulence profiles. The facility is being used for aerothermal optimisation research (e.g., novel cooling systems, aerodynamic optimisation problems, capacity sensitivity studies), computational fluid dynamics validation (aerodynamic predictions, conjugate predictions), and for component validation to accelerate the engine design process. The three key measurement capabilities are: capacity characteristic evaluation to a precision of 0.02%; overall cooling (metal) effectiveness measurements (using a rainbow set of parts if required); and aerodynamic loss evaluation (with realistic cooling, trailing-edge flow etc.). Each of these three capabilities have been separately developed and optimised in other facilities at the University of Oxford in the last 10 years, to refine aspects of facility design, instrumentation design, experimental technique, and theoretical aspects of scaling and reduction of experimental data. The ECAT facility brings together these three research strands with a modular test vehicle for rapid high technology-readiness-level research, demonstration of new technologies, and for engine component validation. The purpose of this paper is to collect in one place — and put in context — the work that led to the development of the ECAT facility, to describe the facility, and to illustrate the accuracy and utility of the techniques by presenting typical data for each of the key measurements. The ECAT facility is a response to the changing requirements of experimental turbomachinery testing, and it is hoped this paper will be of interest to engine designers, researchers, and those involved in major facility developments in both research institutes and engine companies.

Sign in / Sign up

Export Citation Format

Share Document