Item 1155
DESIGN: Dragonfly ~ Power Train -
Reduction - Initial - X-tubeThis while page must be checked and completed
Drawing:
xxx
Note:
The torque in the X-shaft is 115 ft-lb.
Use the same factor as used in connections with standard transmission design, namely, 4 to 4.5 on torsional operating loads. An additional factor of 1.5 should be used in the design of the X-shafting and similar parts.
[Source ~ MDD p.77]
Sizing:
FORM: PT - Mast
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Material |
Steel |
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Span |
9 |
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" |
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Hollow Shaft Calculations: |
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OD of Hollow Shaft |
1.378 |
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" |
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ID of Hollow Shaft |
1 |
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" |
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Design OD of Shaft |
1.2366 |
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" |
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Properties: |
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Area |
0.706 |
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"^2 |
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Weight |
1.8019 |
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lb |
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Area Moment of Inertia |
0.1279 |
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"^4 |
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Polar Second Area Moment |
0.2558 |
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"^4 |
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Section Modulus |
0.1856 |
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"^3 |
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Radius of Gyration |
0.4257 |
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" |
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Centroidal Distance |
0.689 |
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" |
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Mass |
0.0623 |
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slugs |
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Mass Moment of Inertial about Longitudinal Axis |
0.0226 |
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? |
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Distortion Due to Torsion: |
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Horsepower |
49.5 |
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hp |
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Rotational Speed |
2250 |
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rpm |
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Torque |
115 |
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ft-lb |
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Shear Modulus of Elasticity |
11600 |
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ksi |
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Azimuth Differential |
0.0201 |
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rad? deg? |
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These calculations should be checked against: program Engineering Power Tools ~ Sizing of Shafts - Combined Torsion and Bending Loads
Spline:
FORM: PT - Mast - Spline
For additional information see:
OTHER: Mechanical - Spline
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Last Revised: January 24, 2003