- #1
Corse
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Homework Statement
Hi I require to compute the volume of a ellipsoid that is bounded by two planes. The first horizontal (xy) plane is cutting directly along the mid-section of the ellipsoid. The second horizontal plane is at a z = h below the first horizontal plane. The volume of the ellipsoid between these two planes is the interest.
Homework Equations
I understand that the volume of the ellipsoid is 4/3 ∏abc and the area of the cutting plane is ∏ab. However for this problem, I believe the use of integrals may be necessary.
The Attempt at a Solution
From the problem statement, I realized that this can be reduced to a half-ellipsoid and the single horizontal cutting plane at z = h below the first cutting plane. In doing so it will just be a subtraction between 2/3 ∏abc and the volume not bounded by the 2 planes.
If a is the length of the major axis of the 2nd cutting plane in the x direction,
a = A x √(1-(h/C)²);
where A is the major axis of ellipsoid in X direction
C = Major axis of ellipsoid in Z direction
h = vertical distance in the z direction of 2nd plane (below 1st plane)
I'm not sure how should I continue from here though.
Help!
Thanks all for your input.
Regards
Corse