fem_vs_halfspace — DRIVE tacslip op

• Data kinds: table × table → table

• Call: import fullseye as fs; fs.ledger.fem_vs_halfspace(fz: 'dict', fxz: 'dict') -> 'dict' (to call the implementation directly, import tacslip; tacslip.fem_vs_halfspace(fz: 'dict', fxz: 'dict') -> 'dict'; from the registry, opsdrive.get("fem_vs_halfspace"))

Usage

> This operator's description has not been translated yet. The original text follows as it is.

同じ節点集合の法線押し込み `fz と斜め押し込み fxz(:func:fem_nodes_load`)を半空間解と形だけ比べる(荷重の大きさは不明)。

(1) r·dz を 0.5〜0.8 mm で 1 に正規化(`mids・rdz_n`): 半空間 Boussinesq は r ≫ 接触で一定、有限厚は落ちる。1/r から 2 倍外れる

半径 `r_half(無ければ None)。(2) 斜め押し込みの dx(θ) を r = 1/1.5/2/3 mm の環で A + B cos²θ に当てる(ang`: Cerruti なら

B/A = ν/(1−ν) → `nu、ratio = (A+B)/A、R2)、dy を A + B sin2θ に(dy_fit)。R_dome`(表面の r–z を球冠に当てた半径)、

`dy_over_dz0(法線だけでも出ている接線成分 = 非対称の量)、rdx_n、dz0、dx_min_spacing、r・th`(中心相対)も返す。

Raises ValueError: 2 つの表の節点数が違う、節点が 10 個未満。

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• poc_tacsim_marker_shear — py -3.11 examples/poc_tacsim_marker_shear.py

Ops the type connects to (they accept table as input)

course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same

Same category (tacslip)

mindlin_partial_slip · mindlin_traction · hertz_surface_ur · hertzian_tangential_inner · cerruti_kernel · cerruti_surface_displacement · membrane_shear_field · membrane_markers


*Provenance: tacslip.py — DRIVE operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.