Process Equipment & Systems Engineering Capabilities
Engineering Design and Analysis
Stress Engineering's business is deeply rooted in providing a combination of design and analysis services for a broad range of industries. In support of our design activities, we have developed strong capabilities in predicative analysis using computer modeling. Our capabilities break down into three major categories:
 Process systems modeling, including waterhammer and high-pressure gas
systems
analysis.
Process heat transfer and flow modeling using computational fluid dynamics
(CFD).
Structural analysis of process equipment using finite element analysis (FEA).
We use the latest in CFD and FEA analysis software, including FLUENT and FLOW-3D for heat transfer and flow analysis, C-MOLD for injectionmold filling, shrink, and warp analysis, and ABAQUS and ANSYS for stress
analysis. In addition, we maintain a large array of CAD and modeling software, including AutoCAD, Pro-Engineer, I-DEAS, PATRAN, and FEMAP. This allows us to seamlessly interface with our clients' design engineers to transfer drawing
files and speed the construction of computer models for analysis.
Stress Engineering is actively applying these capabilities in suchindustries as refining and petrochemicals, foods and pharmaceuticals, consumer products, aluminum and steel, pulp and paper, and power generation. Typical
applications include:
Design analysis of pumps and fans to improve throughput and establish pump
and fan
 curves in advance of physical prototyping.
Design analysis of valves to improve flow coefficients.
Thermal and mechanical design of heat
exchangers.
Transient modeling of pneumatic and hydraulic piping systems to diagnose
system failures.
Design of high-temperature gas mixing equipment.
Transient thermal-stress analysis of hydrocracking reactor vessels and
fluidized catalyst
cracking units (FCCUs).
Design of manufacturing components for extreme process conditions,
including superalloy
applications above 2000 ° F
and aluminum alloy applications above 550 ° F.
Stress and flow analysis of dispensing devices constructed of commodity
plastics for use in
consumer products packaging.
Design and analysis of injection-molded, blow-molded, and extruded plastic
parts, including
part design, mold filling analysis, and shrink and warp prediction.
Piping stress analysis and transient pressure analysis in pipelines.
Aluminum and steel casting flow and cooling analysis.
Instrumentation, Data Acquisition and Testing Capabilities
Stress Engineering offers both laboratory and on-site instrumentation and
testing services. We maintain extensive laboratory capabilities at both our
Cincinnati and Houston facilities. These facilities include ten load frames for
tension, bending and torsional testing, fatigue test machines, blast test
facilities, a fire test room, and an external pressure/collapse facility. In
addition, Stress Engineering offers a metallurgical lab staffed by three metallurgists. The
majority of the testing done in Stress Engineering's laboratories is custom work targeted at
answering the specific questions of our clients. When necessary, Stress Engineering will build
the custom test equipment required to obtain the data our clients require.
Stress Engineering's on-site services include both data acquisition and
instrumentation and control system development. Stress Engineering uses National Instruments'
(NI) LabVIEW software and NI data acquisition boards as the basis for our
on-site measurement and control systems. Our offices in Cincinnati, Houston, and New Orleans offer extensive LabVIEW
services, providing turnkey system development, measurement services, and
instruction to jump-start our client's in-house LabVIEW efforts.
Our data acquisition and testing capabilities include:
Custom test development.
Multi-channel, high-speed data acquisition services..
Installation of bondable & weldable strain gages for ambient and
high-temperature
applications.
Multi-channel, wireless data acquisition using FM telemetry.
Custom signal conditional chassis design and construction.
Custom National Instruments SCXI module design and construction.
Measurement and monitoring for force, pressure, temperature, vibration (acceleration,
velocity, displacement), noise, and speed
Experimental modal analysis
Residual stress testing for process equipment.
Load-displacement measurements for loads ranging from less than 1 pound to over
10,000,000 pounds.
Cyclic fatigue testing on components ranging from plastic parts to steel drill pipe.
Metallurgical laboratory.
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