Strain In a Rotating Shaft

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Presentation transcript:

Strain In a Rotating Shaft Engineering 300 Open- Ended Project Strain of a Rotating Shaft Joachim Pedersen & Michael Johnson – Spring 2008

How is Data Collected From a Rotating Sensor Array? Slip Rings! And Carbon brushes!

Strength of PMMA

PMMA Tensile Performance Elastic Modulus: 313.98GPa and 280.31GPa

Maximizing Sensitivity Strain Gauges in full bridge configuration for ultimate sensitivity, 4 x that of a quarter bridge!

Data Acquisition System Ability to collect large amount of data in a short time interval. 500 samples per second. 500Hz sample rate

PMMA Rod in Action:

Initial Results

Initial Results

Standard Deviation of Data

Trends from the Data Strain In a Rotating Shaft Increases with increasing rotational speed Increases dramatically when weight is added Deflection increases with increased surface strain

Take it slow!

Predictions

Questions and Thanks Mr. Mike Strange is AWESOME! McKee & Strubs Electric Motor Repairing

Other Videos-Unstable Sample

Heavy Vibration

System Limit, 30lbs Monofilament fishing line 25.2g @ > 1600RPM