Morelli Engineering
gerrym@morelli-engrg.com   503.848.2227
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ENGINEERING ANALYSIS & FEA

Understand your system.  Then do.

Analysis with a purpose:
Reduce component temperatures
Stiffen parts and reduce fatigue failure
Lower part weight
Optimize the design
Increase profits ​​

"Gerry has been consulting for FLIR since 2002. He is our go-to guy for thermal analysis and design, and for all aspects of mechanical design of printed circuit boards. In those two areas, he is the best mechanical engineer I have worked with. He consistently delivers designs that work, on time. As long as he is available, I will continue to employ him on my projects."

John Wiltse, Engineering Project Manager, Flir Systems

THERMAL FEA ANALYSIS

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Optimize LEDs
The design had to be optimized for LED number, location and heat rejection.  Through FEA analysis the first prototype was right on the money.
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Fan Sizing
There are multiple factors in sizing the fan and operating at its sweet spot for your system, such as system pressure drop, power dissipation, noise, and of course frame size.  It needs to be right.
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Heat Sink Analysis
The cylinder to be cooled had to be kept within a few degrees C of the ambient. By careful analysis of both the interfaces and air flow we did a little better than promised.
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Concept Tradeoffs
An especially powerful tool is modeling the system as a thermal circuit and using SPICE simulation. This enables many "what-if" scenarios to be evaluated quickly.
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Transient Thermal FEA
This electrical coil could only handle full power for a short time.  Through transient analysis we determined how long we had before we had to throttle the power.
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CFD
There are times when CFD analysis is indispensable to system design. We partner with some of the top talent in the region to provide this service.

VIBRATION FEA ANALYSIS

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Fixture Response
Before we ever build the product or vibration fixture we "test" within FEA to locate the response frequencies in all axes.
Product Response
It is very important to know if the product resonant frequency lies on top of an input peak.  If it does, either move it through design or damp it.
Resonance
The vibration test house wanted to know where their head expander design resonance was.  10% accuracy is considered reasonable; our analysis was within a few percent of the measured data. ​​

STRESS FEA ANALYSIS

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Stress analysis is very useful for predicting the product internal stresses and deflections.  
Is it strong enough?  Will it bend or deflect too far?  FEA can give the answers you need.

MORELLI ENGINEERING      Your Partner in Strategic Engineering
Product Design Engineering & Analysis
gerrym@morelli-engrg.com          503.848.2227
Gerry Morelli, Professional Engineer