*rebuild_mesh
Remeshes selected shell elements with quality and flow considerations.
Syntax
*rebuild_mesh mark_id
Type
HyperMesh Tcl Modify Command
Description
This command rebuilds an existing mesh such that the new mesh has good quality and flow. It uses the same parameter and criteria files as used by BatchMesher to specify the quality criteria and mesh parameters.
The command expects that the criteria and parameter files are properly set and registered before execution. It utilizes the following fields from the parameter file:
1. Surface hole recognition table
2. Feature angle during element cleanup
3. Element type
4. Mesh type
1Ds attached input shell elements are used as features and they significantly impact mesh quality and flow. If no 1Ds are present in the shells of the input elements, the specified feature angle is internally used to recognize features.
Rebuild is currently supported for first-order shell elements that are not attached to solid elements.
Inputs
- mark_id
- The ID of the mark containing the elements to rebuild. Valid values are 1 and 2.
Examples
To remesh the displayed shell elements with 5 mm criteria and parameter file settings:
*createstringarray 14 " 0 penalty value 0.00 0.00 0.50 1.00 5.00" \
" 1 min length 1 2.0 5.000 4.333 3.666 3.000 2.833 2" \
" 2 max length 1 1.5 5.000 6.200 7.320 9.000 11.290 0" \
" 3 aspect ratio 1 1.0 1.000 2.000 4.000 5.000 10.000 0" \
" 4 warpage 1 2.0 0.000 5.000 15.000 20.000 40.000 0" \
" 5 max angle quad 1 1.0 90.000 110.000 140.000 150.000 165.000 0" \
" 6 min angle quad 1 1.0 90.000 70.000 40.000 30.000 15.000 0" \
" 7 max angle tria 1 1.0 60.000 80.000 120.000 130.000 155.000 0" \
" 8 min angle tria 1 1.0 60.000 50.000 30.000 20.000 10.000 0" \
" 9 skew 1 1.5 0.000 10.000 50.000 60.000 75.000 0" \
" 10 jacobian 1 2.0 1.000 0.900 0.600 0.500 0.350 0" \
" 11 chordal dev 0 0.0 0.000 0.300 0.800 1.000 2.000 0" \
" 12 taper 0 1.0 0.000 0.200 0.500 0.600 0.900 0" \
" 13 % of trias 1 2.0 0.000 3.000 4.500 6.000 9.000 0"
*setqualitycriteria 1 14 0
*createstringarray 105 "geometry_cleanup_flag 1" "meshing_flag 5" \
"element_size 5.0" "element_type 2" \
"mesh_align 3" "element_order 1" \
"surf_component 1" "feature_angle 30.0" \
"holes_table_begin" "appl_surf(1)" "appl_solid(0)" "appl_cordsfiles(0)" "appl_flanged_suppr(1)" \
"flanged_suppr_height(1.4)" "narrow_slots_type(0)" "abs_fixed_nodes_count_max(-8)" \
"rad(0.0,2.2) do action(1) washer(0) " "rad(2.2,3.01) do action(0) elems(4) washer(0) " \
"rad(3.01,4.7) do action(0) elems(6) washer(1) layers(3.5) " "rad(4.7,9.0) do action(0) elems(8) washer(1) layers(0.75*radius) " \
"rad(9.0,11.0) do action(0) elems(8) washer(1) layers(7.0) " "rad(11.0,20) do action(0) elems(8) washer(1) layers(auto) " \
"rad(0.0,2.2) solid(1) do action(1) " "rad(2.2,3.01) solid(1) do action(0) elems(4) " \
"rad(3.01,20) solid(1) do action(0) elems(6) " "holes_table_end" "edge_fillet_recognition 1" \
"max_fillet_radius 5.0" "surface_fillet_table_begin" "surface_fillet_recognition(1)" \
"minimize_transitions(1)" "rad(0,2.2) wid(3.0,6.2) do split(suppress_on)" \
"rad(2.2,15) wid(3.4,6.2) do elems(1)" "rad(0,25.0) wid(6.2,9.2) do elems(2)" \
"rad(0,35.0) wid(9.2,12.5) do elems(3)" "rad(0,40.0) wid(12.5,25.0) do chordal_deviation(0.2)" \
"surface_fillet_table_end" "del_dupl_surfs_flag 2" "del_dupl_surfs_tol -1" \
"edges_stitch_flags 0" "max_edges_stitch_tol -1.0" \
"fix_overlapsurfs_flag 1" "overlapsurfs_maxtangangle -1.0" \
"narrow_surfs_merge_width -1.0" "narrow_surfs_treat_flags 3" \
"beads_suppression 1" "beads_recognition 1" \
"minimal_beads_height 1.4" "beads_treat_flags 0" \
"flange_recognition 1" "flange_elements_across 3" \
"flange_max_width 30.0" "flange_min_width 8.0" \
"flanges_treat_flags 1" "flange_max_remove_width -1.0" \
"appl_tria_reduction 1" "tria_redu_max_elemsize auto" \
"tria_redu_min_elemsize auto" "trias_around_holes 0" \
"common_mesh_flow 0" "extract_thinsolids 1" \
"midsurf_method 3" "thinsolid_ratio 0.3" \
"max_thickness 10.0" "extract_feature_angle 25.0" \
"pre_midsurf_cleanup 1" "direct_midmesh 0" \
"ignore_flat_edges 1" "flatten_connections 0" \
"defeat_open_width_on 1" "defeat_open_width 1.0" \
"supp_proxim_edges_on 1" "supp_proxim_edges 0.5" \
"combine_nonmanifold_on 1" "combine_nonmanifold 0.5" \
"midmesh_extact_elem_size 10.0" "remove_logo 1" \
"logo_max_size 30.0" "logo_max_height 1.4" \
"logo_min_concavity 1.0" "threads_removal 0" \
"threads_toremove_max_depth 5.0" "threads_replacediametertype -2" \
"folded_elems_angle 150.0" "smooth_elems_target 0.2" \
"fillets_mesh_flow 0" "failed_elems_cleanup_flgs 8" \
"move_nodes_across_feature_edges 1" "featureedge_nodes_moveacross_max 0.1" \
"move_nodes_across_free_edges 1" "freeedge_nodes_moveacross_max 0.05" \
"move_normal_flag 1" "move_normal_dist 0.8" \
"divide_warped_quads 1" "ignore_comps_boundary 0" \
"gen_topology_prepare_flags 7" "cleanup_comp_flag 0 " \
"comp_select " "use_wildcards_for_compsnames 0" \
"cleanup_tolerances auto" "suppress_features_rate 0" \
"feat_charsize_method 0" "custom_feat_suppr_maxangle 25.0" \
"uncond_constr_lines_suppress 0" "aggressive_fillet_lines_suppress 0"
*createbatchparamsfromstrings 1 105
*createmark elements 1 displayed
*rebuild_mesh 1
Errors
if { [ catch {command_name...} ] } {
# Handle error
}Version History
2019