How to draw the development drawing of a spherical shell plate and how to cut it?
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How to draw the development drawing of a spherical shell plate and how to cut it?
The book \"Comprehensive Guide to Chemical Equipment Design – Spherical Vessels and Large Storage Tanks\" contains calculation formulas
In fact, shell plates are non-developable; they are generally calculated based on the diameter in cross-sectional theory, with an additional margin of over 50 mm added to the perimeter. After pressing and shaping, the final dimension of the plate is determined
Use the ray method for unfolding; if a spherical shell plate cannot be unfolded, then it becomes impossible to turn square holes into round holes.
Changing square holes to round holes – I’m not sure what the purpose is
Thanks for sharing, I’ll keep an eye on it. . . .
You choose a point on the spherical surface of the sphere as the base point; the distance from this base point to the edge of the surface can be divided into N points according to the desired precision of fabrication. Between this base point and these N points, a ray-like pattern similar to that of a point light source is formed. By calculating the distance from each point to the base point, the development diagram can be determined. It applies to any surface.
Changing a square hole to a round hole is not a modification. It’s the part that connects the two sections – one end of it is square and the other end is round.
Thank you for the answer! But it’s still unclear under what circumstances the end that is taken over is square while the other end is round
For CAD 3D modeling, cutting along the spherical center angle allows for the creation of shell plates for each band