Hi
I generted a shape by exporting points from excel . It is similar to some airfoil shape. After that I revolved the shape and created a closed volume (I call it V1). Than I gave an offset to the shape and from this I used volume revolve and created a new volume inside the earlier one (I call it V2). (The offset value was very small as compared to the actual dimensions of the body)
Finally I removed the new volume from the earlier created volume(I call it V3). This gave me an airfoil shape with small (very small)thickness. I wanted to measure the mass, volume and inertia properties of this new volume.
According to common sense, V1 - V2 = V3 . But CATIA is giving results different from it. Plz help me to understand if there is any error on my part or this is some mathematical approximations used by CATIA.(Error is close to 20-30 %). I tried to use it for different volumes but the error is still creeping in. Plz help !!
I generted a shape by exporting points from excel . It is similar to some airfoil shape. After that I revolved the shape and created a closed volume (I call it V1). Than I gave an offset to the shape and from this I used volume revolve and created a new volume inside the earlier one (I call it V2). (The offset value was very small as compared to the actual dimensions of the body)
Finally I removed the new volume from the earlier created volume(I call it V3). This gave me an airfoil shape with small (very small)thickness. I wanted to measure the mass, volume and inertia properties of this new volume.
According to common sense, V1 - V2 = V3 . But CATIA is giving results different from it. Plz help me to understand if there is any error on my part or this is some mathematical approximations used by CATIA.(Error is close to 20-30 %). I tried to use it for different volumes but the error is still creeping in. Plz help !!