Please keep in mind that these are just little factoids that I am making available about the model. No attempt is being made here to provide a complete overview.
On this page you will find:
Material | Density (lb/cubic inch) | Young's Modulus (psi) | Shear Modulus (psi) | Poisson's Ratio | Thermal Expansion (in/in/F) | MOLA Components |
---|---|---|---|---|---|---|
Aluminum 6061-T651 | 0.098 | 9900000 | 3800000 | 0.33 | 0.00001265 | Various Structural |
Honeycomb Panel | 0.0042 | 468000 | ~ | 0.33 | 0.00001265 | Support Panel |
Magnesium ZK60A | 0.065967 | 6500000 | 2400000 | 0.35 | 0.0000134 | |
G-10 Epoxy Glass | 0.068 | 2000000 | 892857 | 0.12 | 0.000032 | Circuit Boards |
Stainless Steel 303 | 0.286 | 28000000 | ~ | 0.27 | 0.0000096 | |
Titanium 6Al-4V Plate | 0.16 | 16000000 | 6200000 | 0.31 | 0.0000049 | |
Beryllium S200-F | 0.067 | 44000000 | 20370370 | 0.08 | 0.0000102 | |
Beryllium-SR-200E | 0.067 | 44000000 | 20754717 | 0.06 | ~ | |
Beryllium I220 B | 0.067 | 44000000 | 20370370 | 0.08 | ~ | |
AISI 4340 Steel | 0.02 | 29000000 | 10984848 | 0.32 | 0.0000066 | |
Fused Silica | 0.14361 | 10000000 | 3759398 | 0.33 | 0.0000234 | |
Unobtainium | 0 | 2000000 | 892857 | 0.12 | 0.000032 | Detector Boards |
Unobtainium is obviously not an actual material. Often we need specific properties of some materials without other properties being present. In this case, I wanted some of the strength properties of G-10, but not the mass. Hence, Unobtanium.
FEM Component | Quantity |
---|---|
Nodes | 8866 |
Elements | 10204 |
Materials | 15 |
Properties | 168 |
Model Extents | ||
---|---|---|
X | Y | Z |
-15.789 | -16.1685 | -3.25 |
15.789 | 12.0443 | 19.4265 |
The model extents are taken from the model origin, which is located on the optical axis at the support panel midplane (as shown in the exploded view).
Center of Gravity (from origin) | |||||
---|---|---|---|---|---|
Mass (lbs) | X (in) | Y (in) | Z (in) | ||
Structural | 41.88974 | -0.190483 | -2.872827 | 4.443094 | |
NonStructural | 15.74856 | -0.230001 | -9.189502 | 3.198256 | |
Total Mass | 57.6383 | -0.20128 | -4.598737 | 4.102966 |
Inertias about the Origin | ||||
---|---|---|---|---|
Ixx | 6033.54 | Ixy | 11.7679 | |
Iyy | 3833.677 | Iyz | -692.0615 | |
Izz | 6269.474 | Izx | -82.73241 | |
Inertias about Center of Gravity | ||||
Ixx | 3830.372 | Ixy | -41.58405 | |
Iyy | 2849.489 | Iyz | 395.4844 | |
Izz | 5038.693 | Izx | -35.13199 |
G R I D P O I N T W E I G H T A N D B A L A N C E S U M M A R Y REFERENCE POINT = 0 RIGID BODY MASS MATRIX AT REFERENCE POINT IN BASIC COORDINATE SYSTEM *** *** * 5.763811E+01 0.000000E+00 0.000000E+00 0.000000E+00 2.364870E+02 2.650634E+02 * * 0.000000E+00 5.763811E+01 0.000000E+00 -2.364870E+02 0.000000E+00 -1.160180E+01 * * 0.000000E+00 0.000000E+00 5.763811E+01 -2.650634E+02 1.160180E+01 0.000000E+00 * * 0.000000E+00 -2.364870E+02 -2.650634E+02 6.030214E+03 -1.180784E+01 8.273367E+01 * * 2.364870E+02 0.000000E+00 1.160180E+01 -1.180784E+01 3.834166E+03 6.920634E+02 * * 2.650634E+02 -1.160180E+01 0.000000E+00 8.273367E+01 6.920634E+02 6.278718E+03 * *** *** TRANSFORMATION MATRIX, BASIC TO PRINCIPAL MASS SYSTEM *** *** * 1.000000E+00 0.000000E+00 0.000000E+00 * * 0.000000E+00 1.000000E+00 0.000000E+00 * * 0.000000E+00 0.000000E+00 1.000000E+00 * *** *** CENTER OF GRAVITY SUMMARY DIRECTION MASS AXIS SYSTEM MASS X-C.G. Y-C.G. Z-C.G. X 5.763811E+01 0.000000E+00 -4.598752E+00 4.102962E+00 Y 5.763811E+01 -2.012869E-01 0.000000E+00 4.102962E+00 Z 5.763811E+01 -2.012869E-01 -4.598752E+00 0.000000E+00 INERTIA MATRIX IN THE PRINCIPAL MASS SYSTEM *** *** * 3.840956E+03 4.154594E+01 3.513194E+01 * * 4.154594E+01 2.861534E+03 -3.954818E+02 * * 3.513194E+01 -3.954818E+02 5.057421E+03 * *** *** PRINCIPAL MOMENTS OF INERTIA *** *** * 5.127064E+03 * * 2.790378E+03 * * 3.842469E+03 * *** *** TRANSFORMATION MATRIX, PRINCIPAL INERTIA TO PRINCIPAL MASS *** *** * 2.136337E-02 4.465263E-02 9.987742E-01 * * -1.715449E-01 -9.840227E-01 4.766241E-02 * * 9.849446E-01 -1.723529E-01 -1.336210E-02 * *** ***
Center of Gravity (from alternate origin) | |||||
---|---|---|---|---|---|
Mass (lbs) | X (in) | Y (in) | Z (in) | ||
Structural | 44.64165 | -0.178741 | -2.976193 | 7.466716 | |
NonStructural | 13.70766 | -0.264245 | -9.66845 | 6.924437 | |
Total Mass | 58.34931 | -0.198828 | -4.548365 | 7.339321 |
Inertias about the Origin | ||||
---|---|---|---|---|
Ixx | 8200.813 | Ixy | 11.7679 | |
Iyy | 6000.951 | Iyz | -1554.592 | |
Izz | 62969.474 | Izx | -120.4372 | |
Inertias about Center of Gravity | ||||
Ixx | 3850.682 | Ixy | -40.9998 | |
Iyy | 2855.622 | Iyz | 393.2197 | |
Izz | 5060.058 | Izx | -35.29028 |