Pneumatic cushions have always existed, but since the appearance of ETFE material (transparent or translucent) have become very popular. It is a space enclosed by two membranes, one upper and one lower.Ā They are kept separated by the internal pressure of the air which is higher than the external pressure.Ā This pressure difference is usually greater than…
One of the forms of pretensioning a membrane is to overpressure of the interior air. When a membrane is subjected to an air pressure has a certain curvature, this pressure causes the membrane a stress that is proportional to the curvature. So, if itās a membrane of cylindrical shape, with a certain radius of curvature…
With the advent of ETFE in the world of lightweight construction, cushion creation has become a common strategy. A cushion is a set of two membranes: one upper and one lower. Therefore, the best way to approach this creation in WinTess3 is to create the two separate membranes and then put them together. Suppose that…
