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docs: use fixed MITC4 reference tolerance

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KOKO\Mimi
2026-08-13 10:06:45 +09:00
parent 8994ce93f8
commit f1be807e40
14 changed files with 110 additions and 80 deletions
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docs/io-definitions/linear-static-mitc4-shell-io.md
+15 -15
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@@ -36,7 +36,8 @@ The user approved the following I/O-specific decisions on `2026-08-12`:
retaining the existing common metadata, nodal-result, diagnostic, CLI, and
failure-atomicity conventions.
The approved requirements fix the drilling rule and B33 mixed displacement tolerance.
The approved requirements fix the drilling rule and the MITC4 fixed absolute
displacement tolerance `1.0e-5`.
Drilling calibration/output, `NR-O03`, `NR-O04`, bundle-administration metadata, and
an expanded reference portfolio are outside this contract.
@@ -514,22 +515,21 @@ Before tolerance evaluation:
Only `U1/U2/U3` affect pass/fail. `UR1/UR2/UR3` are always compared and reported but
can emit only an approved deterministic nonblocking warning.
For each model, step/frame, quantity, and component group:
For every matched displacement row:
```text
reference_scale_c = max(abs(reference_value_i))
row_tolerance_c = 1e-9 + 1e-6 * reference_scale_c
row_pass = abs(fesa_value-reference_value) <= row_tolerance_c
row_tolerance = 1.0e-5
row_pass = abs(fesa_value-reference_value) <= row_tolerance
```
Reference scale uses finite Abaqus values only. A zero scale makes the relative term
zero. No reference or result value is zero-clamped and no row-specific relative
denominator replaces the component scale. The formula is the approved B33 rule:
the `1e-9` floor is in the user-consistent length unit for U and dimensionless for UR.
U exceedance fails; UR exceedance emits a deterministic warning only.
The `1.0e-5` value is in the user-consistent length unit for U and dimensionless for
UR. No reference or result value is zero-clamped and neither component scale nor a
row-specific denominator changes the fixed value. A reference scale may remain in the
report as diagnostic information only. U exceedance fails; UR exceedance emits a
deterministic warning only. The separate B33 mixed tolerance is unchanged.
The report records every U/UR row, blocking/nonblocking decision, absolute error,
component-scale normalized error, RMS error, displacement/rotation vector-norm
fixed-tolerance-normalized error, RMS error, displacement/rotation vector-norm
error, worst source row/component, and every UR warning.
## 8. CLI and Diagnostics Contract
@@ -615,7 +615,7 @@ physics review, or release status follows from approval of this document alone.
| `031-038` | source-independent MITC4 identity, fixed drilling stabilization and full-integration policy; no drilling output | Implementation Planning tests |
| `039-048` | additive HDF5 v0 paths, mandatory quantities, location identity, atomic output | Reference Model and Implementation Planning |
| `049-057` | diagnostic/schema hooks and required verification-metric/physical-energy evidence | Numerical Review and planning |
| `058-064` | normalized U/UR rows, exact B33 tolerance, blocking/warning behavior, report inventory | Reference Verification |
| `058-064` | normalized U/UR rows, fixed absolute `1.0e-5`, blocking/warning behavior, report inventory | Reference Verification |
| `065-072` | exact current S4 paths, S4R reference non-consumption, immutability and displacement-only gate | Reference Model |
## 11. Open Issues and Downstream Handoff
@@ -623,8 +623,8 @@ physics review, or release status follows from approval of this document alone.
### 11.1 Numerical Review boundary
No I/O-owned calibration value remains open. Numerical Review shall verify the exact
fixed drilling rule, basic geometry predicates, required HDF5 inventory, and B33
tolerance mapping. Drilling calibration/energy output, `NR-O03`, `NR-O04`, bundle
fixed drilling rule, basic geometry predicates, required HDF5 inventory, and fixed
absolute MITC4 tolerance mapping. Drilling calibration/energy output, `NR-O03`, `NR-O04`, bundle
administration and reference-portfolio expansion are removed scope.
### 11.2 Reference Model Agent
@@ -632,7 +632,7 @@ administration and reference-portfolio expansion are removed scope.
- Write `docs/reference-models/linear-static-mitc4-shell-reference-models.md` using
this exact keyword/HDF5/reference-row contract.
- Record only the two exact existing input/displacement pairs, comparison components,
HDF5 projection, source-row identity, B33 tolerance and immutability rule.
HDF5 projection, source-row identity, fixed absolute MITC4 tolerance and immutability rule.
- Treat reaction/stress artifacts as nonblocking review evidence and do not create
location-equivalence claims absent from this contract.