Sampras
Guest
Hello everyone, I have to deal with hypermesh,using ls-dyna as a solver, a crash problem of an articulated quadrilateral.
Before the actual analysis of the crash it is necessary to meshare the pieces that will be analyzed (4 crosses); the iter is usually to carry out the clean up (repair and clean the geometry, ostica phase), to make a mesh 2d and then to throw the tetramesh.
the geometry of the 4 crosses to be analyzed is known (though in bad conditions, they must have been detected and not hand-drawn).
for this it was thought to immediately launch the mesh 2d,clean it later,using quality index,render it as good as possible,and then make tetramesh.
But during this passage, from the mesh 2d to the tetra,the surfaces are unclosed;even surfaces have just been adjusted as complex and irregular.how to proceed?it is necessary to make the perfect geometry,then perfectly circular holes, regular surfaces after the mesh 2d?
once then overcome this problem, how do I manage constraints? the articulated quadrilateral is basically constituted by 4 transverses that should be hinged at the extremities and at the center where (I believe) housing the steering column.
Thank you.
Before the actual analysis of the crash it is necessary to meshare the pieces that will be analyzed (4 crosses); the iter is usually to carry out the clean up (repair and clean the geometry, ostica phase), to make a mesh 2d and then to throw the tetramesh.
the geometry of the 4 crosses to be analyzed is known (though in bad conditions, they must have been detected and not hand-drawn).
for this it was thought to immediately launch the mesh 2d,clean it later,using quality index,render it as good as possible,and then make tetramesh.
But during this passage, from the mesh 2d to the tetra,the surfaces are unclosed;even surfaces have just been adjusted as complex and irregular.how to proceed?it is necessary to make the perfect geometry,then perfectly circular holes, regular surfaces after the mesh 2d?
once then overcome this problem, how do I manage constraints? the articulated quadrilateral is basically constituted by 4 transverses that should be hinged at the extremities and at the center where (I believe) housing the steering column.
Thank you.