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Multi-Function Laboratory
(B-150) |
Description:
This laboratory houses multi-disciplinary research and instructional
facilities shared mainly by the departments of Civil and Mechanical
Engineering. Approximately 25% of the laboratory is used for undergraduate
labs in fluid and solid mechanics. The rest of the lab is used to
support research projects in the areas of acoustics, vibrations, aerodynamics,
fluid mechanics, and solid mechanics.
| Faculty
Point of Contact: |
Acoustics & Vibrations:
Doug Reynolds
MEG Fluid Mechanics/Aerodynamics: Bill Culbreth (x 3426, culbreti@clark.nscee.edu)
CEG Fluid Mechanics: James Cardle, Tom Piechota
MEG Materials & Structures: Brendan O'Toole (x3885; bj@me.unlv.edu)
CEG Materials & Structures: Samaan Ladkany, Jerry Fredericks
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| Affiliated
Faculty: |
Mohamed Trabia
Ajit Roy
John Wang
Dave James
Jaci Batista |
| Function of Facility: |
75% research
25% instruction |
Major Equipment, Instrumentation and Capabilities:
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Fluid Mechanics:
- Wind Tunnels - Low turbulence wind tunnel, 18"
x 18" cross section, Eiffel design, 35 hp fan, 110
MPH with 3-D boundary layer pitot tube traverse and force
platform. The wind tunnel also has a smoke generator. A
small instructional wind tunnel is also available in the
laboratory for demonstrating streaklines past airfoils and
cylinders with circulation;
- Flume - 65 foot long tilting flume with 1800 GPM
capacity, 65 hp pump, filters, magnetic flowmeter, and the
ability to flow and capture sand. The system includes additional
12" taps for future experiments. A small water turbine
is also attached to the fluid loop;
- Lab apparatus - A number of undergraduate fluid
mechanics experimental devices are available in the laboratory.
A small open channel flume, two pressure drop experiments,
and a compressible flow bench are a part of the lab;
Acoustics & Vibrations:
- Anechoic Room - The anechoic room has a 12 ft x
14 ft x 10 ft work area. It has been qualified per ANSI
S12.35 for sound measurements down to the 50 Hz third octave
frequency band. The anechoic room is used to characterize
the sound radiation characteristics of reference sound sources
and to determine the sound radiation patterns of multiple
categories of sound sources;
- Reverberation Rooms - There are two reverberation
rooms in TBE 150. One has an interior volume of 9,400 ft3
and been qualified per ANSI S12.31 for broadband sound tests
and per ANSI S12.32 for pure tone sound tests. The room
is used to measure the overall sound energy that is radiated
from sound sources, the sound attenuation of HVAC duct components,
and the sound attenuation of walls and panels. The large
reverberation room has adjacent to it a small 4,300 ft3
reverberation room and attached to it two air distribution
duct systems, one with a flow capacity up to 60,000 cfm
and one with a flow capacity of up to 10,000 cfm;
- Ventilation Duct Systems - There are two ventilation
duct systems take can be used to conduct airflow and sound
tests on HVAC duct and system components. Both duct systems
are connected to the large reverberation room;
- Throw Room - The throw room has dimensions of 31
ft x 22 ft and a ceiling height that can be automatically
varied from 4 ft to 14 ft. This room is used to measure
the throw characteristics of HVAC terminal units, such as
air diffusers. Airflow and sound measurements are made in
the room via a four-axis, computer-controlled traversing
mechanism that can place a probe anywhere in the room with
an accuracy of 0.1 in;
- Vibration Test Facility and Instrumentation - The
vibration test facility is used to make vibration measurements
related to human exposure to vibration, hand-tool vibration,
and unitary HVAC systems. The facility has an assortment
of standard and shock-type accelerometers, an electromechanical
shaker with a Vibration View vibration controller, several
high-end two-channel sound and vibration frequency and real-time
analyzers, and a four-channel Bruel-Kjaer Portable Pulse
System;
- Sound Instrumentation - The sound instrumentation
includes an assortment of microphones, Bruel & Kjaer
and Larson Davis precision sound level meters, a Bruel &
Kjaer acoustic intensity probe, several high-end two-channel
sound and vibration frequency and real-time analyzers, and
a four-channel Bruel-Kjaer Portable Pulse System;
Materials & Structures:
- MTS 50,000-lb Servo Hydraulic Axial/Torsional Fatigue
Rated Material Test System with:
¾ - inch hydraulic collet grips
rated for torsion and 50 kips tension/compression
Hydraulic wedge grips rated to 27 kips
tension/compression
8-channel Measurements Group strain gage
conditioning system
500°C Furnace with high temperature
extensometry
Test Fixtures: compression platens, 3-
and 4-pt. flexure, puncture, and shear;
- Blue-M inert gas oven for long term aging studies of materials;
- Blue-M furnace for curing and aging of materials;
- Concrete mixing equipment;
- Tineus Olson 30,000-lb universal testing machine;
- Techmet strut testing system for laboratory experiments;
- Torsion testing system for laboratory experiments
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