File size: 7,178 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | #!/usr/bin/env python3
from __future__ import annotations
import math
import re
from pathlib import Path
ROOT = Path("/home/user/Desktop")
DT = 0.01
T_MAX = 60.0
G = 9.80665
TARGET_PEAK_ACCELERATION = 0.2 * G
EXPECTED = (0.049626, 262.790752)
REL_TOL = 2.0e-3
ABS_TOL = 2.0e-5
def read(path: Path) -> str:
return path.read_text(encoding="utf-8", errors="ignore")
def close(actual: float, expected: float, rel_tol: float = REL_TOL, abs_tol: float = ABS_TOL) -> bool:
return math.isfinite(actual) and abs(actual - expected) <= max(
abs_tol, rel_tol * max(1.0, abs(expected))
)
def parameter(text: str, name: str) -> str:
match = re.search(rf"^\s*(\S+).*?\s{re.escape(name)}(?:\s+-.*)?$", text, re.MULTILINE)
if not match:
raise ValueError(f"missing parameter {name}")
return match.group(1).strip('"').rstrip(",")
def pulse_kinematics(time: float, scale: float) -> tuple[float, float, float]:
if time < 30.0 or time > 60.0:
return 0.0, 0.0, 0.0
tau = time - 30.0
envelope_frequency = math.pi / 30.0
carrier_frequency = 2.0 * math.pi
sine = math.sin(envelope_frequency * tau)
cosine = math.cos(envelope_frequency * tau)
envelope = sine**4
envelope_d1 = 4.0 * envelope_frequency * sine**3 * cosine
envelope_d2 = 4.0 * envelope_frequency**2 * (3.0 * sine**2 * cosine**2 - sine**4)
carrier = math.sin(carrier_frequency * tau)
carrier_d1 = carrier_frequency * math.cos(carrier_frequency * tau)
carrier_d2 = -(carrier_frequency**2) * carrier
displacement = scale * envelope * carrier
velocity = scale * (envelope_d1 * carrier + envelope * carrier_d1)
acceleration = scale * (
envelope_d2 * carrier + 2.0 * envelope_d1 * carrier_d1 + envelope * carrier_d2
)
return displacement, velocity, acceleration
def check_motion(path: Path) -> bool:
rows: list[list[float]] = []
for line in read(path).splitlines():
fields = line.split()
if len(fields) != 19:
return False
rows.append([float(value) for value in fields])
if len(rows) != 6001:
return False
unscaled_peak = max(
abs(pulse_kinematics(step * DT, 1.0)[2])
for step in range(round(T_MAX / DT) + 1)
)
scale = TARGET_PEAK_ACCELERATION / unscaled_peak
peak_acceleration = 0.0
for index, row in enumerate(rows):
time = index * DT
if not close(row[0], time, rel_tol=0.0, abs_tol=2.0e-9):
return False
expected = pulse_kinematics(time, scale)
actual = (row[1], row[7], row[13])
if any(not close(value, target, rel_tol=2.0e-8, abs_tol=2.0e-9) for value, target in zip(actual, expected)):
return False
if any(abs(row[column]) > 1.0e-12 for column in (*range(2, 7), *range(8, 13), *range(14, 19))):
return False
peak_acceleration = max(peak_acceleration, abs(row[13]))
return close(peak_acceleration, TARGET_PEAK_ACCELERATION, rel_tol=0.0, abs_tol=2.0e-8)
def output_metrics(path: Path) -> tuple[float, float]:
lines = read(path).splitlines()
header_index = next(i for i, line in enumerate(lines) if line.split()[:1] == ["Time"])
headers = lines[header_index].split()
units = lines[header_index + 1].split()
time_i = headers.index("Time")
displacement_i = headers.index("Intf1TDXss")
moment_i = headers.index("ReactMYss")
if units[displacement_i] != "(m)" or units[moment_i] != "(N*m)":
raise ValueError("unexpected native SubDyn units")
all_rows: list[list[float]] = []
for line in lines[header_index + 2 :]:
fields = line.split()
if len(fields) != len(headers):
continue
try:
all_rows.append([float(value) for value in fields])
except ValueError:
continue
if len(all_rows) != 6000 or not close(all_rows[-1][time_i], 59.99, rel_tol=0.0, abs_tol=1.0e-8):
raise ValueError("incomplete SubDyn output")
rows = [row for row in all_rows if row[time_i] >= 30.0]
if len(rows) != 3000:
raise ValueError("incorrect excitation-window sample count")
return (
max(abs(row[displacement_i]) for row in rows),
max(abs(row[moment_i]) for row in rows) / 1.0e6,
)
def parse_summary(path: Path) -> tuple[float, float]:
rows = [line.strip() for line in read(path).splitlines() if line.strip()]
if len(rows) != 1:
raise ValueError("summary must contain one row")
values = tuple(float(value.strip()) for value in rows[0].split(","))
if len(values) != 2 or not all(math.isfinite(value) for value in values):
raise ValueError("summary must contain two finite values")
return values
def check() -> bool:
required = (
"build_case.py",
"postprocess.py",
"earthquake_motion.txt",
"subdyn_eq.dat",
"earthquake.dvr",
"earthquake_sd.SD.out",
"earthquake_sd.SD.sum.yaml",
"earthquake_sd.log",
"summary.txt",
)
if any(not (ROOT / name).is_file() or (ROOT / name).stat().st_size == 0 for name in required):
return False
driver = read(ROOT / "earthquake.dvr")
expected_driver = {
"NSteps": "6000",
"TimeInterval": "0.01",
"nTP": "1",
"TP_RefPoint_X": "0.0",
"TP_RefPoint_Y": "0.0",
"TP_RefPoint_Z": "10.0",
"InputsMod": "2",
"InputsFile": "earthquake_motion.txt",
"nAppliedLoads": "0",
}
if any(parameter(driver, name) != value for name, value in expected_driver.items()):
return False
if "ALJointID Fx Fy Fz Mx My Mz UnsteadyFile" not in driver:
return False
subdyn = read(ROOT / "subdyn_eq.dat")
if "ExtLdMod" in subdyn:
return False
if re.search(r"(?<![-A-Za-z0-9_])ReactMYss(?![A-Za-z0-9_])", subdyn) is None:
return False
if re.search(r"(?<![-A-Za-z0-9_])Intf1TDXss(?![A-Za-z0-9_])", subdyn) is None:
return False
if re.search(r"(?<![A-Za-z0-9_])-ReactMYss(?![A-Za-z0-9_])", subdyn):
return False
if not check_motion(ROOT / "earthquake_motion.txt"):
return False
log = read(ROOT / "earthquake_sd.log")
if "Running SubDyn Driver a part of OpenFAST - v5.0.0" not in log:
return False
if "Simulated Time: 59.99 seconds" not in log or "Total Real Time:" not in log:
return False
if any(marker in log for marker in ("Premature EOF", "Invalid numerical input", "FATAL ERROR")):
return False
calculated = output_metrics(ROOT / "earthquake_sd.SD.out")
reported = parse_summary(ROOT / "summary.txt")
return all(close(actual, expected) for actual, expected in zip(calculated, EXPECTED)) and all(
close(actual, expected) for actual, expected in zip(reported, EXPECTED)
) and all(close(actual, calculated_value, rel_tol=0.0, abs_tol=2.0e-5) for actual, calculated_value in zip(reported, calculated))
def main() -> int:
try:
result = check()
except Exception:
result = False
print("True" if result else "False")
return 0
if __name__ == "__main__":
raise SystemExit(main())
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