Data · dataset · 2026
<p>Joint stiffness values and parameter treatment.</p>
Listed in NCL Data
<div><p>Five-axis machine tools exhibit pose-dependent structural dynamics, but repeated full finite element reconstruction across the workspace is computationally inefficient.
Description
We developed a parametric finite element workflow in ANSYS APDL for a five-axis machine-tool analog specimen. The structure was divided into six modules; regular regions were sweep-meshed and irregular regions were represented with quadratic SOLID186 elements using nominal element sizes of 20, 10, and 5 mm.
Bearing, ball screw-nut, and linear guideway-slider joints were represented by equivalent springs. Twelve screw-nut and guideway-slider stiffness parameters were calibrated with a genetic algorithm against the first six natural frequencies measured at one reference pose. Movable joint locations were updated from the X-, Y-, Z-, A-, and C-axis pose variables while the identified joint stiffness values were held constant.
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At the reference pose, the mean and maximum frequency discrepancies between the calibrated model and experiment were 3.29% and 8.78%, respectively. Workspace calculations predicted that the first natural frequency decreased as the beam center of gravity rose, whereas spindle-dominated local modes showed similar trends among working planes. Because calibration and model checking used the same reference-pose data and no multi-pose modal measurements were available, the reported workspace trends should be interpreted as model-based predictions rather than independently validated responses.</p></div>
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Where it is published
- DOI doi.org/10.1371/journal.pone.0359727.t003 ↗
DOI / persistent id · from data ncl ac uk
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from data ncl ac uk
Topics
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NCL Data | oai:figshare.com:article/34071524 | 13 h ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data ncl ac uk | connector:data_ncl_ac_uk@1.0.0 | |
| concepts[field].anzsrc:field:440710 | mapping · data ncl ac uk | vocabulary-mapper@1.0.0 | keywords['Science Policy'] |
| concepts[field].anzsrc:group:3103 | mapping · data ncl ac uk | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3108 | mapping · data ncl ac uk | vocabulary-mapper@1.0.0 | keywords['Plant Biology'] |
| concepts[field].local:field:earth-environmental | mapping · data ncl ac uk | connector:data_ncl_ac_uk@1.0.0 | |
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| description | source · data ncl ac uk | connector:data_ncl_ac_uk@1.0.0 | /metadata/dc/description |
| license | source · data ncl ac uk | connector:data_ncl_ac_uk@1.0.0 | /metadata/dc/rights |
| publication_date | source · data ncl ac uk | connector:data_ncl_ac_uk@1.0.0 | |
| title | source · data ncl ac uk | connector:data_ncl_ac_uk@1.0.0 | /metadata/dc/title |