scholarly journals DEVELOPMENT OF AN OPEN-SOURCE AUTOMATIC DEFORMATION MONITORING SYSTEM FOR GEODETICAL AND GEOTECHNICAL MEASUREMENTS

2016 ◽  
Vol XL-5/W8 ◽  
pp. 25-30 ◽  
Author(s):  
P. Engel ◽  
B. Schweimler
Keyword(s):  
Applied Sciences ◽  
Open Source ◽  
Deformation Monitoring ◽  
Development Effort ◽  
Open Hardware ◽  
Long Period ◽  
Programming Tools ◽  
Modern Engineering ◽  
University Of Applied Sciences ◽  
Sensor Control

The deformation monitoring of structures and buildings is an important task field of modern engineering surveying, ensuring the standing and reliability of supervised objects over a long period. Several commercial hardware and software solutions for the realization of such monitoring measurements are available on the market. In addition to them, a research team at the Neubrandenburg University of Applied Sciences (NUAS) is actively developing a software package for monitoring purposes in geodesy and geotechnics, which is distributed under an open source licence and free of charge. The task of managing an open source project is well-known in computer science, but it is fairly new in a geodetic context. This paper contributes to that issue by detailing applications, frameworks, and interfaces for the design and implementation of open hardware and software solutions for sensor control, sensor networks, and data management in automatic deformation monitoring. It will be discussed how the development effort of networked applications can be reduced by using free programming tools, cloud computing technologies, and rapid prototyping methods.

Design and Implementation of a Modern Automatic Deformation Monitoring System

2016 ◽  
Vol 10 (1) ◽  
Author(s):  
Philipp Engel ◽  
Björn Schweimler
Keyword(s):  
Open Source ◽  
Deformation Monitoring ◽  
Development Effort ◽  
Open Hardware ◽  
Design And Implementation ◽  
Programming Tools ◽  
Modern Engineering ◽  
University Of Applied Sciences ◽  
Sensor Control ◽  
The University

AbstractThe deformation monitoring of structures and buildings is an important task field of modern engineering surveying, ensuring the standing and reliability of supervised objects over a long period. Several commercial hardware and software solutions for the realization of such monitoring measurements are available on the market. In addition to them, a research team at the University of Applied Sciences in Neubrandenburg (NUAS) is actively developing a software package for monitoring purposes in geodesy and geotechnics, which is distributed under an open source licence and free of charge.The task of managing an open source project is well-known in computer science, but it is fairly new in a geodetic context. This paper contributes to that issue by detailing applications, frameworks, and interfaces for the design and implementation of open hardware and software solutions for sensor control, sensor networks, and data management in automatic deformation monitoring. It will be discussed how the development effort of networked applications can be reduced by using free programming tools, cloud computing technologies, and rapid prototyping methods.

scholarly journals GvSIG in the academic education of heterogeneous target groups – experiences in lectures, exercises and eLearning

2011 ◽  
Vol 7 ◽  
pp. 5-10
Author(s):  
Wolfgang Dorner ◽  
Jörg Scheffer ◽  
Roland Zink
Keyword(s):  
Applied Sciences ◽  
Open Source ◽  
Academic Education ◽  
Target Groups ◽  
Student Autonomy ◽  
University Of Applied Sciences ◽  
Range Of Functions ◽  
E Learning ◽  
The Right ◽  
The University

Thanks to easier operability and a growing range of functions, open source products are increasingly being used in teaching GIS to students of various course programs. The elaboration of such courses poses the challenge of taking into account different study paths, allowing for student autonomy (e-learning), and choosing the right software. The article suggests answers to these questions by presenting the classes offered at the University of Applied Sciences in Deggendorf and the University of Passau since winter 2010/11 as well as ideas for future course offers.

Chatty ROADMs: Streaming Telemetry with Open Source Software and Open Hardware

2021 ◽  
Author(s):  
Jan Kundrat ◽  
Vaclav Kubernat ◽  
Tomas Pecka ◽  
Ondrej Havlis ◽  
Martin Slapak ◽  
...  
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
Open Hardware

FH Münster University of Applied Sciences / Vietnamese Social Sciences

2021 ◽  
Author(s):  
H.L. Cu Si
Keyword(s):  
Social Sciences ◽  
Applied Sciences ◽  
The Road ◽  
University Of Applied Sciences

FH Münster University of Applied Sciences; Lib holding: Item - The Vietnamese Social Sciences at a Fork in the Road

URANS Simulations and Experimental Investigations on Unsteady Aerodynamic Effects in the Blade Tip Region of a Shrouded Fan Configuration

2017 ◽  
Author(s):  
Gi-Don Na ◽  
Frank Kameier ◽  
Nils Springer ◽  
Michael Mauß ◽  
C. O. Paschereit
Keyword(s):  
Applied Sciences ◽  
Numerical Simulations ◽  
Aerodynamic Performance ◽  
Design Parameters ◽  
Experimental Investigations ◽  
Acoustic Measurements ◽  
Noise Emission ◽  
Industrial Partner ◽  
University Of Applied Sciences ◽  
Blade Tip

The acoustical characteristics of cooling fans are an essential criterion of product quality in the automotive industry. Fan modules have to suffice growing customer expectations which are reflected in the comfort requirements set by car manufacturers around the world. In order to locate dominant acoustic sources and to reduce the noise emission generated by a shrouded fan configuration, numerical simulations and experimental investigations are performed. The working approach considers variously modified fan geometries and their evaluation regarding arising vortex flow phenomena and their effect on a decreased sound pressure level (SPL) in consideration of an improvement or the constancy of aerodynamic fan performance. Particular emphasis lies on the analysis of secondary flows in the blade tip region by post-processing CFD-results. Due to the large number of geometrical modifications investigated and the importance of highly resolved eddy structures, a hybrid approach is chosen by applying the SAS-SST turbulence model in URANS simulations. The SAS (Scale Adaptive Simulation) delivers LES (Large Eddy Simulation) content in unsteady regions of a RANS-simulation and exhibits not nearly the high computational effort needed to perform a full scale LES. An assessment of the actual propagation of noise emission into the far-field is made by performing experimental investigations on the most promising modifications. The acoustic measurements are carried out in a fan test stand in the anechoic chamber of Duesseldorf University of Applied Sciences. The aerodynamic performance is measured in a fan test rig with an inlet chamber setup in accordance to ISO 5801. The measured acoustical and aerodynamic performances are validated by the industrial partner. The results of the acoustic measurements are in turn utilized to determine indicators of noise radiation in the numerical simulation. Within this work an innovative geometry modification is presented which can be implemented into shrouded fan configurations with backward-skewed blades. The new design exhibits a reduced SPL (A-weighted) of approx. 4 dB over the entire operating range while showing no significant deterioration on the aerodynamic performance. While the design was registered for patent approval cooperatively by the industrial partner and Duesseldorf University of Applied Sciences, further investigations regarding variations of design parameters are performed and presented in this paper. All numerical simulations are performed with ANSYS CFX, a commercial solver widely spread in the industry. Methods similar to those shown in this work can be implemented in the design phase of axial fans in order to develop acoustically optimized fan geometries.

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