File size: 4,188 Bytes
5154c4e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | from pathlib import Path
import traceback
DESKTOP = Path(r"C:\Users\user\Desktop")
DB_FILE = DESKTOP / "apdl_plate.db"
RESULT_FILE = DESKTOP / "apdl_plate.rst"
EXEC_FILE = r"C:\Program Files\ANSYS Inc\v261\ansys\bin\winx64\ANSYS261.exe"
JOBNAME = "eval_apdl_plate"
MAPDL_PORT = 50102
def is_nonempty_file(path: Path) -> bool:
return path.exists() and path.is_file() and path.stat().st_size > 0
def allsel(mapdl) -> None:
mapdl.run("ALLSEL,ALL")
def node_at(mapdl, x: float, y: float, tol: float = 1e-3) -> int:
allsel(mapdl)
mapdl.nsel("S", "LOC", "X", x - tol, x + tol)
mapdl.nsel("R", "LOC", "Y", y - tol, y + tol)
node = int(mapdl.get_value("NODE", 0, "NUM", "MIN"))
allsel(mapdl)
if node < 1:
raise RuntimeError("Node not found.")
return node
def sort_max(mapdl, item: str, comp: str = "") -> float:
if comp:
mapdl.run(f"NSORT,{item},{comp},0,1,ALL")
else:
mapdl.run(f"NSORT,{item},,0,1,ALL")
return float(mapdl.get_value("SORT", 0, "MAX"))
def reaction_fy_on_x(mapdl, x: float, tol: float = 1e-3) -> float:
allsel(mapdl)
mapdl.nsel("S", "LOC", "X", x - tol, x + tol)
cnt = int(mapdl.get_value("NODE", 0, "COUNT"))
print('cnt@x',x,cnt)
if cnt < 1:
raise RuntimeError("No support nodes selected.")
mapdl.fsum()
fy = float(mapdl.get_value("FSUM", 0, "ITEM", "FY"))
allsel(mapdl)
return fy
def _coord_span(arr, axis: int):
values = [float(v[axis]) for v in arr]
return min(values), max(values)
def _within(value: float, target: float, tol: float) -> bool:
return abs(value - target) <= tol
def _check_bounds_from_instruction(mapdl) -> bool:
nodes = mapdl.mesh.nodes
if nodes is None or len(nodes) < 2:
print('bounds no nodes')
return False
xmin, xmax = _coord_span(nodes, 0)
ymin, ymax = _coord_span(nodes, 1)
zmin, zmax = _coord_span(nodes, 2)
ok = _within(xmin, 0.0, 1e-2) and _within(xmax, 50.0, 1e-1) and _within(ymin, 0.0, 1e-2) and _within(ymax, 1.0, 1e-1)
print('bounds', xmin,xmax,ymin,ymax,zmin,zmax,'->',ok)
return ok
def evaluate():
if any(not is_nonempty_file(p) for p in [DB_FILE, RESULT_FILE]):
print('missing files')
return False
from ansys.mapdl.core import launch_mapdl
mapdl = launch_mapdl(exec_file=EXEC_FILE, jobname=JOBNAME, run_location=str(DESKTOP), nproc=1, port=MAPDL_PORT, override=True)
try:
mapdl.resume(DB_FILE.stem, "db")
if not _check_bounds_from_instruction(mapdl):
print('FAIL: bounds')
return False
mapdl.post1()
mapdl.file(RESULT_FILE.stem, RESULT_FILE.suffix.lstrip('.'))
try:
mapdl.set('LAST')
except Exception:
mapdl.set(1,1)
center = node_at(mapdl, x=0.0, y=1.0)
pred = {
'center_top_uy_mm': float(mapdl.get_value('NODE', center, 'U', 'Y')),
'max_seqv_mpa': sort_max(mapdl, 'S', 'EQV'),
'clamped_reaction_fy_n': reaction_fy_on_x(mapdl, x=50.0),
}
print('pred', pred)
for key, val in pred.items():
x=float(val)
lk=key.lower()
if "temp" in lk and not (-1000.0 <= x <= 5000.0):
print('FAIL temp',key,x); return False
if "freq" in lk and not (x > 0.0):
print('FAIL freq',key,x); return False
if "reaction" in lk and abs(x) < 1e-9:
print('FAIL reaction',key,x); return False
if ("uy" in lk or "uz" in lk or "ux" in lk or "rot" in lk) and not (-1e6 <= x <= 1e6):
print('FAIL disp',key,x); return False
if ("von_mises" in lk or "seqv" in lk or "stress" in lk) and abs(x) < 1e-9:
print('FAIL stress',key,x); return False
if "final_time" in lk and not (x > 0.0):
print('FAIL time',key,x); return False
print('PASS')
return True
except Exception as e:
print('EXC',repr(e))
traceback.print_exc()
return False
finally:
try: mapdl.exit()
except Exception: pass
print('True' if evaluate() else 'False')
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