B077
DESIGN: SynchroLite ~
Power Train (2-engines) - Mast
FORM: PT - Mast
The data on the above form must be checked
Torsional Deflection of Solid Steel Shafting:
(from Engineering Power Tools program). There is a Help file describing the data below.
Black rows are input.
Blue rows are results.|
|
Shaft Diameter [in] |
1.0 |
1.125 |
1.1811 |
1.25 |
1.375 |
1.5 |
|
|
Shaft Length (synchro to rotor) [in] |
54 |
54 |
54 |
54 |
54 |
54 |
|
|
Weight [lb] |
12.03 |
15.22 |
16.78 |
18.79 |
22.74 |
27.06 |
|
|
Tensile Modulus of Elasticity [psi] |
30.0e6 |
30.0e6 |
30.0e6 |
30.0e6 |
30.0e6 |
30.0e6 |
|
|
Shear Modulus of Elasticity [psi] |
11.5e6 |
11.5e6 |
11.5e6 |
11.5e6 |
11.5e6 |
11.5e6 |
|
|
Polar Moment of Inertia [in4] |
0.098 |
0.157 |
0.191 |
0.24 |
0.351 |
0.497 |
|
|
Polar Section Modulus [in3] |
0.196 |
0.28 |
0.324 |
0.383 |
0.61 |
0.663 |
|
|
Shaft Speed [rpm] |
600 |
600 |
600 |
600 |
600 |
600 |
|
|
Transmitted Power [hp] |
30 |
30 |
30 |
30 |
30 |
50 |
|
|
Applied Torque ["-#] |
3150 |
3150 |
3150 |
3150 |
3150 |
5147 |
|
|
Torsional Deflection [deg] |
8.65 |
5.40 |
4.44 |
3.55 |
2.41 |
2.79 |
|
|
Maximum Shear Stress [psi] |
16071 |
11250 |
9722 |
8225 |
6176 |
7763 |
|
|
Total side load [lbs] |
|
|
|
|
|
851 |
|
|
Distance between bearings [in] |
|
|
|
|
|
9.5 |
|
|
Resultant torque ["-#] |
|
|
|
|
|
673.7 |
|
|
Deflection at mid-point [in] |
|
|
|
|
|
0.001 |
|
|
Maximum stress at ends [psi] |
|
|
|
|
|
4165 |
|
|
Maximum Combined Stress [psi] |
35000 |
12291 |
10979* |
8960 |
6731 |
10370 |
* only one to include side load etc.
Comparison of weight & strength etc. for steel and titanium shafts of equal strength
Titanium is 6Al-4Va shafting and requires the center to be machine bored out for lightness.
Consideration of SynchroLite in respect to Ultrasport 331:
The Ultrasport titanium mast, if solid, would be 1.6" OD. Its 100% RRPM is 500 RPM and the engine is 65 hp.
|
|
Material |
Steel |
Titanium 6Al-4Va |
Titanium 6Al-4Va |
Titanium |
|
|
Shaft OD [in] |
1.3780 |
1.1811 |
1.3780 |
1.625 |
|
|
Wall |
0.15 |
---- |
0.25 |
0.4375 |
|
|
Shaft ID [in] |
1.0780 |
0 |
0.878 |
.75 |
|
|
Shaft Theoretical Diameter [in] |
1.1816 |
1.1811 |
1.2977 |
1.6 |
|
|
Shaft Length(clutch to rotor) [in] |
45.4 |
45.4 |
45.4 |
36 +/- |
|
|
Weight [lb] |
8.8527 |
9.6480 |
7.7929 |
12.22 |
|
|
Tensile Modulus of Elasticity [psi] |
30.0e6 |
16.0e6 |
16.0e6 |
16.0e6 |
|
|
Shear Modulus of Elasticity [psi] |
11.5e6 |
6.4e6 |
6.4e6 |
6.4e6 |
|
|
Polar Moment of Inertia [in4] |
0.191 |
0.191 |
0.278 |
.643 |
|
|
Polar Section Modulus [in3] |
0.323 |
0.324 |
0.429 |
.804 |
|
|
Shaft Speed [rpm] |
600 |
600 |
600 |
500 |
|
|
Transmitted Power [hp] |
30 |
30 |
30 |
65 |
|
|
Applied Torque ["-#] |
3150 |
3150 |
3150 |
8190 |
|
|
Torsional Deflection [deg] |
3.73 |
6.703 |
4.605 |
4.015 |
|
|
Maximum Shear Stress [psi] |
9722 |
9753 |
7360 |
10186 |
|
|
Total side load [lbs] |
851? |
851? |
851? |
|
|
|
Distance between bearings [in] |
9.5 |
9.5 |
9.5 |
|
|
|
Resultant torque ["-#] |
674? |
674? |
674? |
|
|
|
Deflection at mid-point [in] |
0.001? |
0.001? |
0.001? |
|
|
|
Maximum stress at ends [psi] |
4165? |
4165? |
3140? |
|
|
|
Maximum Combined Stress [psi] |
10979? |
10979? |
16321? |
|
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Last Revised: January 21, 2005