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COSMOS helps solve complex aircraft engine
pump analysis
Company
Nichols Aircraft
Division
Parker Hannifin Corp.
Aerospace Group |
Industry
Aerospace/Defense |
Location
U.S.A. |
Product Used
COSMOSWorks
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Type of Analysis
Linear Static,
Frequency
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More Details
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Complex housing structure for a multi-element
aircraft engine lubricating pump
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The Challenge
Nichols Aircraft Division wanted to analyze a very complex housing
structure for a multi-element aircraft engine lubricating pump
to make sure it met the vibration, acceleration and pressure loading
conditions it would encounter. Richard Friedman, principal engineer,
describes the pump model, designed with SolidWorks, as "an
octopus with its tentacles tied up in knots." Friedman tried
a number of analysis programs, but was unable to mesh the complex
casting.
The Solution
Nichols chose to use COSMOSWorks backed up by COSMOSM and SRAC's
Consulting Services.
The meshed model had approximately
1.3 million degrees of freedom. It took between one and a half
to two hours to run a first order solution. With COSMOS "typically
we succeed every time," Friedman says. "If a model is
meshable, we can usually mesh it within 24 hours. When we make
design modifications now, it only takes a couple of days to generate
new meshes and obtain results."
Summary and Metrics:
- Meshed a model with approximately 1.3 million degrees of freedom
- Reduced meshing time from 1 part in several months to several
meshes in 1 month.
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"In
the past we have gone through months of frustration, but
it took John just three weeks to mesh and solve the problem
using COSMOSWorks and COSMOSM."
Richard Friedman, Principal Engineer
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