Trying to apply some FEA methods to an airship envelope. This envelope is symmetrical front to back and side to side so I have only drawn a quarter of the envelope and will use symmetry planes. The envelope is made out of 76 micron PET plastic film. I would like to analyse envelope shape and stresses with 3.5x10-4 MPa gauge pressure inside it using air, helium and hydrogen as the internal gas (air at STP will be the gas outside the envelope). I am hoping that there will be a way to account for the shape and stresses in the fabric that takes into account even the weight of the fabric itself.
by slilbaekslilbaek
by ahmedhussain18ahmedhussain18
DaleKramer created this project
over 7 years ago