# CEA/LGLS 2004, Francis KLOSS (OCC) # ================================== # Import # ------ from geompy import * from meshpy import * # Piece # ----- # Creer la geometrie en bloc hexahedrique d'une piece en forme de T composee de 2 cylindres de diametre different dont les axes se coupent orthogonalement, # puis mailler en hexahedrique. cx = 0 cy = 0 cz = 0 g_rayon = 100.0 g_hauteur = 500 p_rayon = 50.0 p_hauteur = 500 g_trim = 1000 # Geometrie # ========= cpd = [] # Gros cylindre # ------------- g_base = MakeVertex(cx, cy, cz) g_dir = MakeVectorDXDYDZ(0, 0, 1) t_hauteur = p_rayon+10.0 g_cyl = MakeCylinder(g_base, g_dir, g_rayon, g_hauteur) g_coupe = MakeVectorDXDYDZ(1, 0, 0) g_tools = [] g_tools.append(MakePlane(MakeVertex(cx+t_hauteur, cy, cz), g_coupe, g_trim)) g_tools.append(MakePlane(MakeVertex(cx-t_hauteur, cy, cz), g_coupe, g_trim)) g_partie = MakePartition([g_cyl], g_tools, [], [], ShapeType["SOLID"]) g_bas, g_centre, g_haut = SubShapeAllSorted(g_partie, ShapeType["SOLID"]) # Partie basse du gros cylindre # ----------------------------- b_hauteur = 10 b_base = 20 b_boite = MakeBox(cx-t_hauteur, cy-b_base, cz, cx-t_hauteur-b_hauteur, cy+b_base, cz+g_hauteur) cpd.append(b_boite) b_cyl = MakeCut(g_bas, b_boite) b_tools = [] b_tools.append(MakePlane(MakeVertex(cx-t_hauteur-b_hauteur, cy+b_base, cz), MakeVectorDXDYDZ( 1, 1, 0), g_trim)) b_tools.append(MakePlane(MakeVertex(cx-t_hauteur-b_hauteur, cy-b_base, cz), MakeVectorDXDYDZ(-1, 1, 0), g_trim)) b_partie = MakePartition([b_cyl], b_tools, [], [], ShapeType["SOLID"]) b_element = SubShapeAll(b_partie, ShapeType["SOLID"]) cpd = cpd + b_element # Partie haute du gros cylindre # ----------------------------- h_plan = MakePlane(g_base, g_coupe, g_trim) cpd.append(MakeMirrorByPlane(b_boite, h_plan)) for h in b_element: h_symetrie = MakeMirrorByPlane(h, h_plan) cpd.append(h_symetrie) # Petit cylindre # -------------- z_arete = p_rayon/2 x_arete = z_arete*t_hauteur*2/g_hauteur px = cx-x_arete py = cy-1.5*g_rayon pz = cz+g_hauteur/2 p_base = MakeVertex(cx, py, pz) p_dir = MakeVectorDXDYDZ(0, 1, 0) p_cyl = MakeCylinder(p_base, p_dir, p_rayon, p_hauteur) p_boite = MakeBox(px, py, pz-z_arete, cx+x_arete, py+p_hauteur, pz+z_arete) # Partie interieure du petit cylindre # ----------------------------------- i_cyl = MakeCommon(p_cyl, g_cyl) i_tuyau = MakeCut(i_cyl, p_boite) i_boite = MakeCommon(p_boite, g_cyl) # Partie exterieure du petit cylindre # ----------------------------------- e_cyl0 = MakeCut(p_cyl, g_cyl) e_cyl = SubShapeAllSorted(e_cyl0, ShapeType["SOLID"]) e_tuyau = MakeCut(e_cyl[1], p_boite) e_boite0 = MakeCut(p_boite, g_cyl) e_boite = SubShapeAllSorted(e_boite0, ShapeType["SOLID"]) cpd.append(e_boite[1]) # Partie centrale du gros cylindre # -------------------------------- c_cyl = MakeCut(g_centre, p_cyl) # Partitionner # ------------ p_tools = [] p_tools.append(MakePlane(MakeVertex(px, py, pz-z_arete), MakeVectorDXDYDZ(-z_arete, 0, x_arete), g_trim)) p_tools.append(MakePlane(MakeVertex(px, py, pz+z_arete), MakeVectorDXDYDZ( z_arete, 0, x_arete), g_trim)) p_partie = MakePartition([e_tuyau], p_tools, [], [], ShapeType["SOLID"]) p_element = SubShapeAll(p_partie, ShapeType["SOLID"]) cpd = cpd + p_element q_partie = MakePartition([i_tuyau, c_cyl], p_tools, [], [], ShapeType["SOLID"]) q_element = SubShapeAll(q_partie, ShapeType["SOLID"]) q_element = q_element + [i_boite] q_tools = [] q_tools.append(MakePlane(MakeVertex(cx, cy-b_base, cz), MakeVectorDXDYDZ(0, 1, 0), g_trim)) q_tools.append(MakePlane(MakeVertex(cx, cy+b_base, cz), MakeVectorDXDYDZ(0, 1, 0), g_trim)) r_element = [] for e in q_element: r_partie = MakePartition([e], q_tools, [], [], ShapeType["SOLID"]) r_element = r_element + SubShapeAll(r_partie, ShapeType["SOLID"]) cpd = cpd + r_element # Compound # -------- comp_all = MakeCompound(cpd) piece = BlocksOp.RemoveExtraEdges(comp_all) # Ajouter la piece dans l'etude # ----------------------------- piece_id = addToStudy(piece, "T2Cylindres") # Maillage # ======== # Mailler des hexahedres # ---------------------- m_hexa=MeshHexa(piece, 4, "T2CylindresHexa") # Calculer le maillage # -------------------- m_hexa.Compute()