scholarly journals Design Methodology for a Quick and Low-Cost Wind Tunnel

10.5772/54169 ◽  
2013 ◽  
Author(s):  
Miguel A. Gonzalez Hernandez ◽  
Ana I. Moreno Lopez ◽  
Artur A. ◽  
Jose M. Perales Perales ◽  
Yuliang Wu ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Design Methodology ◽  
Low Cost

Flexural Joints in Mechanisms

2000 ◽  
Author(s):  
M. P. Koster
Keyword(s):  
Consumer Goods ◽  
Design Methodology ◽  
Low Cost ◽  
Point Of View ◽  
Industrial Technology ◽  
Scientific Instruments ◽  
Manufacturing Equipment ◽  
Flexural Fatigue ◽  
Elastic Deflection ◽  
Flexural Joints

Abstract The application of flexural joints in mechanisms has a number of advantages. Extreme repeatability of position is obtained because of the absence of backlash and friction. From a tribological point of view, no lubrication is needed and no wear exists. In many cases their application gives rise to a low cost assembly. Flexural elements have their particular drawbacks as well. Deflections are limited; only oscillating motions can be performed and work has to be done as a consequence of the elastic deflection. Flexural fatigue sets another limit to their application. The paper gives an overview of a design methodology that has been developed at the Philips Center for Industrial Technology by the author and his colleagues over the last several decades. Some aspects of this methodology are well known; other aspects are unique. The methodology is described in detail in a book by the author about design principles (Koster 1998). The methodology has been used to design hundreds of practical mechanisms incorporated in scientific instruments, manufacturing equipment and consumer goods. Many examples are given in (Koster 1998). Several interesting examples are given in this paper.

Web-based tools for collaborative research

2017 ◽  
Vol 34 (8) ◽  
pp. 8-19
Author(s):  
Stacy Brody
Keyword(s):  
Collaborative Research ◽  
Design Methodology ◽  
Research Collaboration ◽  
Low Cost ◽  
Research Process ◽  
Web Based ◽  
Content Type ◽  
Collaborative Tools ◽  
Start Ups ◽  
Practical Implications

Purpose The purpose of this paper is to profile various types of Web-based tools to facilitate research collaboration within and across institutions. Design/methodology/approach Various Web-based tools were tested by the author. Additionally, tutorial videos and guides were reviewed. Findings There are various free and low-cost tools available to assist in the collaborative research process, and librarians are well-positioned to facilitate their usage. Practical implications Librarians and researchers will learn about various types of tools available at free or at low cost to fulfill needs of the collaborative research process. Social implications As the tools highlighted are either free or of low cost, they are also valuable to start-ups and can be recommended for entrepreneurs. Originality/value As the realm of Web-based collaborative tools continues to evolve, the options must be continually revisited and reviewed for currency.

Acoustic Characterization of Glaze and Rime Ice Structures on an Oscillating Airfoil via Fully Unsteady Simulations

2020 ◽  
Vol 65 (4) ◽  
pp. 1-12
Author(s):  
Myles Morelli ◽  
Beckett Y. Zhou ◽  
Alberto Guardone
Keyword(s):  
Wind Tunnel ◽  
Computational Modeling ◽  
Low Cost ◽  
Two Dimensional ◽  
Ice Accretion ◽  
Experimental Database ◽  
Acoustic Characterization ◽  
Ice Detection ◽  
Detection Technologies

The development of low-cost and simple technologies to improve pilot awareness of icing environments is crucial to improve the safety of rotorcraft, and especially those with limited icing clearance which are admittedly operating within icing environments without full icing clearance. An acoustic characterization of glaze and rime ice structures is hereby introduced to begin to quantify different ice shape noise signatures which directly transcend from the iced performance characteristics to develop acoustic ice detection technologies. The feasibility of the detection technique is assessed for fully unsteady simulations of ice accretion on an oscillating, two-dimensional airfoil. This work focuses on the computational modeling of the experimental database of a rotor airfoil with pitching motion during icing conditions from the NASA Glenn Icing Research Wind Tunnel and computing the resultant noise signals and analyzing their topology.

Development and characterization of a low-cost wind tunnel balance for aerodynamic drag measurements

2019 ◽  
Vol 40 (4) ◽  
pp. 045002
Author(s):  
Suthyvann Sor ◽  
Rafael Bardera ◽  
Adelaida García-Magariño ◽  
Juan Carlos Matías García ◽  
Eduardo Donoso
Keyword(s):  
Wind Tunnel ◽  
Aerodynamic Drag ◽  
Low Cost ◽  
Wind Tunnel Balance

scholarly journals Potential of dust emission resources using small wind tunnel and GIS: case study of Bakhtegan playa, Iran

2019 ◽  
Vol 9 (8) ◽  
Author(s):  
Siroos Karimzadeh ◽  
Mohammad Mehdi Taghizadeh
Keyword(s):  
Wind Tunnel ◽  
Present Model ◽  
Low Cost ◽  
Dust Emission ◽  
High Potential ◽  
Wind Speeds ◽  
Desert Areas ◽  
Medium Potential

Abstract Determination of the high potential of dust emission is a requisite affair in the management of dusts emission and as well as avoiding its risks. Wind tunnel is among the most important approaches in the study of areas having high potential in emitting dusts. Extensive dried playas and desert areas require the making of low-cost, simple, and car-portable tunnels capable of presenting comparable data of various areas even supposing not having enough precision in the model of real wind motion. In this study, we first engaged in making a car-portable tunnel with a primarily semicircle section of 38 cm height, 50 cm diameter, and 110 cm length. A fan and key appliance with the ability to change speed were used along with a simple transformer launched with car battery. Then, concentration of the pm10 dusts was measured in the various wind speeds of 1, 2.5, 4, 5.5, and 7 m/s by the help of anemometer and digital equipments. The study of Bakhtegan playa was done, as the methodology of handling with this tunnel, in 35 positions, and zoning of the results was performed via ArcGIS software. Depending on the destructibility of the shell by wind, the areas under study were categorized as low potential (34%), medium potential (37%), and high potential (29%) in emitting dusts. The results of zoning spotted the high-potential areas on the map. The usage of small tunnels, as in the present model, may be applied in order for the low-cost and fast studies of vast areas to the purpose of playas management.

Mobilizing the technology storm: app-based stress relief – using free or low-cost apps to beat work and personal stress

2014 ◽  
Vol 31 (6) ◽  
pp. 8-11
Author(s):  
Thomas Finley
Keyword(s):  
Design Methodology ◽  
Low Cost ◽  
Stress Relief ◽  
Content Type ◽  
Take Back ◽  
Library Users ◽  
Personal Stress ◽  
Mental Space

Purpose – The purpose of this article is to review apps that will enable librarians to take back control of their own mental space and hopefully provide some means to relaxation. Sometimes it is hard to find a soothing space amidst the chaos of the outside world. Our library users turn to the author to provide these spaces in their own lives, but paradoxically, today’s librarian may find little relaxation within their own library’s walls. Design/methodology/approach – The author tests and reviews apps designed to help librarians relax. Findings – The author reviews various different apps designed to help librarians relax. Originality/value – The apps reviewed here will enable librarians to take back control of their own mental space and hopefully, provide some means to relaxation.

scholarly journals Design of a Compact Planar Rectenna for Wireless Power Transfer in the ISM Band

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Fang Zhang ◽  
Xin Liu ◽  
Fan-Yi Meng ◽  
Qun Wu ◽  
Jong-Chul Lee ◽  
...  
Keyword(s):  
Cycle Time ◽  
Design Methodology ◽  
Low Cost ◽  
Wireless Power ◽  
High Conversion Efficiency ◽  
Operation Mechanism ◽  
Ism Band ◽  
Design Cycle ◽  
Rectenna Design ◽  
Compact Planar

This paper presents a compact planar rectenna with high conversion efficiency in the ISM band. The proposed rectenna is developed by the decomposing of a planar rectenna topology into two functional parts and then recombining the two parts into a new topology to make the rectenna size reduction. The operation mechanism of the antenna and rectifying circuit in the proposed novel topology is explained and the design methodology is presented in detail. The proposed topology not only reduces the rectenna design cycle time but also leads to easy realization at the required frequency ranges with a very low cost. For validation, a 2.45 GHz rectenna system is designed and measured to show their microwave performances.

Developing the right brand image

2018 ◽  
Vol 34 (9) ◽  
pp. 35-36
Keyword(s):  
Case Studies ◽  
Design Methodology ◽  
Reading Time ◽  
Brand Image ◽  
Low Cost ◽  
Content Type ◽  
Customer Base ◽  
Pertinent Information ◽  
The Right ◽  
Practical Implications

Purpose Reviews the latest management developments across the globe and pinpoints practical implications from cutting-edge research and case studies. Design/methodology/approach This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context. Findings Developing a feeling of authenticity about products amongst the target customer base is an essential goal for marketers even in terms of low cost items. Consumers derive information from a broad range of marketing communications and consistency is a key element for success. Originality/value The briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.

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