1 join board with tubal side end board builds received mechanical model
According to structural character and load character, be in finite yuan of model is medium, the 1 ／ that takes case of whole rally tubal side 4 undertake an analysis. Housing is finite yuan the model sees a picture 1.
Graph box of gather of 1 canal side is finite yuan of model
2 ties condition
Because the model takes 1 ／ of whole 4 undertake an analysis, because this is in,the model brings to bear on to be restrained symmetrically on symmetrical face. Join board and board bundle connective place applies consolidate to be restrained surely, run side side end board also applies consolidate to be restrained surely.
3 limited unit choose
(1) defines unit kind
The structure uses ANSYS 9. The flexibility in 0 software 4 node 63 unit (SheB Elastic 4node 63) . Shell63 stretch carapace: Have curved quadrature and filmy character, can bear to be the same as the load of direction and normal direction with plane. Every node spends 6 times freely: X, Y, direction and wind way of X, Y, axis. Have stress aggrandizement and be out of shape greatly ability, offer the successional tangent matrix that is used at be out of shape greatly to analyse.
(2) defines material attribute
Set joins board and the E of stretch model quantity of end board is 190GPa, poisson is than μ 0. 29; Set strengthens the stretch model of circle and flange to measure E to be 200GPa, poisson is than μ 0. 28.
(3) reseau differentiates
Reseau delimits cent chooses free reseau to differentiate means.
2. 4 apply to load to carry on one's shoulder or back
In the model inside the surface brings to bear on 0. The pressure of 2 MPa.