Design, Construction, and Validation of an Aeroacoustic Anechoic Test Facility

2002 ◽  
Author(s):  
Daniel Jansson ◽  
John Hubner ◽  
Mark Sheplak ◽  
Lou Cattafesta
Keyword(s):  
Test Facility ◽  
Design Construction

Design, Construction, and Analysis of Pavements Using Accelerated Loading Facility

1997 ◽  
Vol 1590 (1) ◽  
pp. 73-79
Author(s):  
Freddy L. Roberts ◽  
Louay N. Mohammad ◽  
Ludfi Djakfar ◽  
Amar Raghavendra
Keyword(s):  
Fatigue Cracking ◽  
Primary Response ◽  
Performance Data ◽  
Test Facility ◽  
Response Analysis ◽  
Damage Prediction ◽  
Testing Facility ◽  
Short Period ◽  
Transportation Research ◽  
Design Construction

The Louisiana Transportation Research Center has recently completed the construction of a full-scale pavement test facility using the accelerated loading facility (ALF) machine. This facility contains nine pavement test sections, 12-m (38-ft) long and 3.66-m (12-ft) wide that are loaded by the ALF machine with loads ranging from 34.71 to 111.25 kN (7,800 to 25,000 lbf) on a dual-tire assembly. The advantage of this testing facility is its ability to cause a pavement to fail in a short period of time. In addition, the data acquisition methods and instrumentation used in this testing facility allow researchers to obtain reliable and representative performance data. The first test section has been loaded to failure and a preliminary analysis of the data is completed. VESYS 3A-M, a microcomputer version of the VESYS series, has been selected for the analysis due to its ability to predict damage and its flexibility. The analysis consists of the primary response analysis to determine strains, stresses, and deflection of the pavement and damage-prediction modeling that includes rutting, fatigue cracking, and roughness. The analysis was conducted by comparing the data obtained from field with that predicted by VESYS 3A-M. The performance data obtained from the field include fatigue cracking, rutting, and roughness. The analysis showed that VESYS 3A-M outputs are in good agreement with those obtained from the field.

Design, construction and performance of the current lead test facility CuLTKa

Cryogenics ◽  
2017 ◽  
Vol 86 ◽  
pp. 22-29 ◽  
Author(s):  
T. Richter ◽  
S. Bobien ◽  
W.H. Fietz ◽  
M. Heiduk ◽  
R. Heller ◽  
...  
Keyword(s):  
Current Lead ◽  
Test Facility ◽  
And Performance ◽  
Design Construction

Class 100 Large Spacecraft Facility

1989 ◽  
Vol 32 (5) ◽  
pp. 17-21
Author(s):  
Keith Maruya ◽  
Lorraine Ryan ◽  
Donald Fritz
Keyword(s):  
Monitoring System ◽  
Lessons Learned ◽  
Test Area ◽  
Test Facility ◽  
Vertical Flow ◽  
Space Systems ◽  
Certification Process ◽  
Competitive Edge ◽  
Operational Data ◽  
Design Construction

To enhance its competitive edge in producing highly contamination-sensitive space systems, TRW has recently designed and constructed a large spacecraft assembly and test facility that is fully cleanroom compatible. Features of this facility include a large assembly and test area and a smaller support room that have HEPA-filtered vertical flow, dedicated staging areas for garment application, storage, and equipment preparation, and an automated cleanroom monitoring system (CRMS). A description of the design, construction, and certification process is given. Operational data from the CRMS and lessons learned are also presented.

scholarly journals Design, Construction and Testing of a Desktop Supersonic Wind Tunnel

2005 ◽  
Vol 4 (2) ◽  
Author(s):  
Vi Rapp ◽  
Jennifer Jacobsen ◽  
Mark Lawson ◽  
Andrew Parker ◽  
Kuan Chen
Keyword(s):  
Wind Tunnel ◽  
High Speed ◽  
Compressible Flows ◽  
Supersonic Flows ◽  
Load Cell ◽  
Test Facility ◽  
Supersonic Wind Tunnel ◽  
Tunnel System ◽  
Design Construction ◽  
Good Agreement

A mobile and affordable, miniature wind tunnel to aid students in studying high-speed compressible flows was constructed and tested. Millimeter-sized nozzles of different contours were fabricated to produce supersonic flows at Mach 2. The complete system consists of a converging-diverging nozzle, a load cell, pressure and temperature sensors, a tank to store high-pressure gases, and a computer-aided data acquisition system. The wind tunnel system is mounted to a cart, making it convenient to move. This test facility allows students to study and test supersonic flows in a safer environment while eliminating the high costs for a full-sized facility. Gas pressure was measured at various locations in the nozzle. A load cell consisting of four cantilever beams was constructed and used to determine the thrust of the nozzle. Data collected from each nozzle was compared to numerical simulations. In all cases, the simulations were in good agreement with the experimental data.

scholarly journals The SXFEL Upgrade: From Test Facility to User Facility

2021 ◽  
Vol 12 (1) ◽  
pp. 176
Author(s):  
Bo Liu ◽  
Chao Feng ◽  
Duan Gu ◽  
Fei Gao ◽  
Haixiao Deng ◽  
...  
Keyword(s):  
Free Electron Laser ◽  
Test Facility ◽  
X Ray ◽  
Water Window ◽  
Laser Facility ◽  
User Facility ◽  
Two Phases ◽  
Design Construction ◽  
Whole Water ◽  
Future Plans

The Shanghai soft X-ray Free-Electron Laser facility (SXFEL), which is the first X-ray FEL facility in China, is being constructed in two phases: the test facility (SXFEL-TF) and the user facility (SXFEL-UF). The test facility was initiated in 2006 and funded in 2014. The commissioning of the test facility was finished in 2020. The user facility was funded in 2016 to upgrade the accelerator energy and build two undulator lines with five experimental end-stations. The output photon energy of the user facility will cover the whole water window range. This paper presents an overview of the SXFEL facility, including considerations of the upgrade, layout and design, construction status, commissioning progress and future plans.

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