[{"data":1,"prerenderedAt":1661},["ShallowReactive",2],{"{\"language\":\"fr\",\"resolve_relations\":\"reference.source\",\"version\":\"published\"}resources/blog/tech-soft-3d-s-cad-acronyms-buster-59-key-terms-for-3d-engineering-clarified":3},{"data":4,"headers":1638},{"story":5,"cv":1619,"rels":1620,"links":1637},{"name":6,"created_at":7,"published_at":8,"updated_at":9,"id":10,"uuid":11,"content":12,"slug":1610,"full_slug":1611,"sort_by_date":1612,"position":1613,"tag_list":1614,"is_startpage":390,"parent_id":1615,"meta_data":27,"group_id":1616,"first_published_at":1617,"release_id":27,"lang":1491,"path":27,"alternates":1618,"default_full_slug":27,"translated_slugs":27},"Tech Soft 3D’s CAD Acronyms Buster: 59 Key Terms for 3D Engineering, Clarified","2026-04-14T15:16:19.962Z","2026-10-10T22:21:11.299Z","2026-10-10T22:21:11.507Z",165847777206883,"4014db9b-ed23-4169-bbdc-d59bf4f3b6cf",{"_uid":13,"body":14,"date":1430,"fold":1431,"unit":1522,"intro":1523,"title":1508,"author":1530,"sidebar":1531,"category":1590,"end_date":17,"location":17,"metadata":1598,"component":1603,"thumbnail":1604,"hide_author":390,"hide_sidebar":390,"redirect_url":17,"show_date_range":390,"is_external_page":390,"open_graph_image":1608,"external_page_url":17,"include_open_graph":160,"block_search_engines":390},"015c4825-95f3-4f19-abd8-1dcd8091b8a2",[15,19,161,299,436,639,674,760,799,1311,1325,1336,1347,1358,1369,1378,1387,1389,1397,1403],{"_uid":16,"height":17,"component":18},"fc3725b4-7fbc-4e55-9c67-90291430fe64","","element-spacer",{"_uid":20,"body":21,"alignment":17,"component":159,"is_full_width":160},"d6494edd-4bb7-4c9f-ba48-c2d26b77a7c2",{"type":22,"content":23},"doc",[24,32,37,155,157],{"type":25,"attrs":26,"content":28},"paragraph",{"textAlign":27},null,[29],{"text":30,"type":31},"Lorsqu'on travaille dans des espaces d'ingénierie 3D, que ce soit en tant que développeur logiciel, ingénieur ou client, les acronymes peuvent commencer à se fondre. Pour aider, nous avons assemblé un guide pratique de quelques-uns des termes courants de la CAO et de l'ingénierie que nous rencontrons tous les jours. Bien sûr, cette liste n'est pas exhaustive, mais nous espérons qu'elle aide à naviguer dans la mer des abréviations.","text",{"type":25,"attrs":33,"content":34},{"textAlign":27},[35],{"text":36,"type":31},"Nous les avons regroupés par sujet pour vous aider à en savoir plus sur les domaines les plus pertinents pour vous. Cliquez sur les catégories ci-dessous pour accéder à l'endroit où vous souhaitez commencer.",{"type":38,"content":39},"bullet_list",[40,56,67,78,89,100,111,122,133,144],{"type":41,"content":42},"list_item",[43],{"type":25,"attrs":44,"content":45},{"textAlign":27},[46],{"text":47,"type":31,"marks":48},"Écosystème CAO de base",[49],{"type":50,"attrs":51},"link",{"href":52,"uuid":11,"anchor":53,"target":54,"linktype":55},"/resources/blog/tech-soft-3d-s-cad-acronyms-buster-59-key-terms-for-3d-engineering-clarified","core","_self","story",{"type":41,"content":57},[58],{"type":25,"attrs":59,"content":60},{"textAlign":27},[61],{"text":62,"type":31,"marks":63},"Fondamentaux de la Géométrie et de la Modélisation",[64],{"type":50,"attrs":65},{"href":52,"uuid":11,"anchor":66,"target":54,"linktype":55},"geometry",{"type":41,"content":68},[69],{"type":25,"attrs":70,"content":71},{"textAlign":27},[72],{"text":73,"type":31,"marks":74},"Formats de Fichiers et Interopérabilité",[75],{"type":50,"attrs":76},{"href":52,"uuid":11,"anchor":77,"target":54,"linktype":55},"file",{"type":41,"content":79},[80],{"type":25,"attrs":81,"content":82},{"textAlign":27},[83],{"text":84,"type":31,"marks":85},"Fabrication et Impression 3D",[86],{"type":50,"attrs":87},{"href":52,"uuid":11,"anchor":88,"target":54,"linktype":55},"3d",{"type":41,"content":90},[91],{"type":25,"attrs":92,"content":93},{"textAlign":27},[94],{"text":95,"type":31,"marks":96},"Simulation et Analyse",[97],{"type":50,"attrs":98},{"href":52,"uuid":11,"anchor":99,"target":54,"linktype":55},"simulation",{"type":41,"content":101},[102],{"type":25,"attrs":103,"content":104},{"textAlign":27},[105],{"text":106,"type":31,"marks":107},"Données Produit et de Fabrication",[108],{"type":50,"attrs":109},{"href":52,"uuid":11,"anchor":110,"target":54,"linktype":55},"product",{"type":41,"content":112},[113],{"type":25,"attrs":114,"content":115},{"textAlign":27},[116],{"text":117,"type":31,"marks":118},"Visualisation et Graphiques",[119],{"type":50,"attrs":120},{"href":52,"uuid":11,"anchor":121,"target":54,"linktype":55},"visualization",{"type":41,"content":123},[124],{"type":25,"attrs":125,"content":126},{"textAlign":27},[127],{"text":128,"type":31,"marks":129},"XR (AR/VR)",[130],{"type":50,"attrs":131},{"href":52,"uuid":11,"anchor":132,"target":54,"linktype":55},"xr",{"type":41,"content":134},[135],{"type":25,"attrs":136,"content":137},{"textAlign":27},[138],{"text":139,"type":31,"marks":140},"Concepts du Développeur",[141],{"type":50,"attrs":142},{"href":52,"uuid":11,"anchor":143,"target":54,"linktype":55},"developer",{"type":41,"content":145},[146],{"type":25,"attrs":147,"content":148},{"textAlign":27},[149],{"text":150,"type":31,"marks":151},"Infrastructure Cloud",[152],{"type":50,"attrs":153},{"href":52,"uuid":11,"anchor":154,"target":54,"linktype":55},"cloud",{"type":156},"horizontal_rule",{"type":25,"attrs":158},{"textAlign":27},"copy",true,{"_uid":162,"body":163,"alignment":17,"component":159,"is_full_width":160},"f2d2f96e-8fff-4e49-b1c5-d6b61a168d50",{"type":22,"content":164},[165,178,183,189,194,199,215,220,225,230,250,255,270,275,280,285,290,291],{"type":166,"attrs":167,"content":169},"heading",{"level":168,"textAlign":27},2,[170,172],{"text":171,"type":31},"Termes de l'Écosystème CAD de Base",{"text":173,"type":31,"marks":174}," ",[175],{"type":176,"attrs":177},"anchor",{"id":53},{"type":25,"attrs":179,"content":180},{"textAlign":27},[181],{"text":182,"type":31},"Ici, vous trouverez certains des acronymes les plus fondamentaux dans les espaces d'ingénierie.",{"type":166,"attrs":184,"content":186},{"level":185,"textAlign":27},3,[187],{"text":188,"type":31},"CAD (Computer-Aided Design)",{"type":25,"attrs":190,"content":191},{"textAlign":27},[192],{"text":193,"type":31},"CAD, ou conception assistée par ordinateur, est un terme générique utilisé pour décrire l'utilisation d'un modèle 3D qui représente un objet physique.",{"type":166,"attrs":195,"content":196},{"level":185,"textAlign":27},[197],{"text":198,"type":31},"CAE (Computer-Aided Engineering)",{"type":25,"attrs":200,"content":201},{"textAlign":27},[202,204,209,211],{"text":203,"type":31},"CAE désigne la réalisation d'analyses numériques sur des modèles CAD, simulant le comportement physique tel que l'intégrité structurelle, le flux d'air ou les performances thermiques. Les techniques courantes incluent ",{"text":205,"type":31,"marks":206},"FEA",[207],{"type":208},"bold",{"text":210,"type":31}," et ",{"text":212,"type":31,"marks":213},"CFD.",[214],{"type":208},{"type":166,"attrs":216,"content":217},{"level":185,"textAlign":27},[218],{"text":219,"type":31},"CAM (Computer-Aided Manufacturing)",{"type":25,"attrs":221,"content":222},{"textAlign":27},[223],{"text":224,"type":31},"CAM fait référence à l'utilisation des données CAD pour générer les instructions et les processus nécessaires à la fabrication d'une pièce, y compris les trajectoires d'outils et le code CNC.",{"type":166,"attrs":226,"content":227},{"level":185,"textAlign":27},[228],{"text":229,"type":31},"AEC (Architecture / Engineering / Construction)",{"type":25,"attrs":231,"content":232},{"textAlign":27},[233,235,239,241,248],{"text":234,"type":31},"Une vaste catégorie industrielle couvrant la conception et la construction de bâtiments et d'infrastructures. 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Un outil clé utilisé dans ",{"text":261,"type":31,"marks":262},"la construction numérique",[263],{"type":208},{"text":265,"type":31},", et donc également lié à ",{"text":267,"type":31,"marks":268},"AEC.",[269],{"type":208},{"type":166,"attrs":271,"content":272},{"level":185,"textAlign":27},[273],{"text":274,"type":31},"PLM (Product Lifecycle Management)",{"type":25,"attrs":276,"content":277},{"textAlign":27},[278],{"text":279,"type":31},"Le processus de gestion du cycle de vie d'un produit, de sa conception à sa fabrication et maintenance. Connecte les données, les processus et les équipes à travers le cycle de vie d'un produit.",{"type":166,"attrs":281,"content":282},{"level":185,"textAlign":27},[283],{"text":284,"type":31},"Jumeau Numérique",{"type":25,"attrs":286,"content":287},{"textAlign":27},[288],{"text":289,"type":31},"Un sujet d'actualité dans de nombreuses industries de l'ingénierie, ce terme décrit un modèle virtuel d'un objet physique qui reflète ses caractéristiques du monde réel. Souvent utilisé pour la surveillance, la simulation et la gestion du cycle de vie.",{"type":156},{"type":166,"attrs":292,"content":293},{"level":168,"textAlign":27},[294,295],{"text":62,"type":31},{"text":173,"type":31,"marks":296},[297],{"type":176,"attrs":298},{"id":66},{"gap":17,"_uid":300,"align":301,"count":302,"width":17,"columns":303,"component":435,"remove_padding":160},"d8b28a65-c771-4c4f-966a-e62bb683a431","align-center","column-two",[304,391],{"_uid":305,"body":306,"alignment":17,"component":159,"is_full_width":390},"2cf71bdd-8a4b-4979-b2f1-8f908283f068",{"type":22,"content":307},[308,313,329,348,353,364],{"type":166,"attrs":309,"content":310},{"level":185,"textAlign":27},[311],{"text":312,"type":31},"B-Rep (Représentation par les Frontières)",{"type":25,"attrs":314,"content":315},{"textAlign":27},[316,318,322,323,327],{"text":317,"type":31},"Également abrégé en BREP, cette méthode pour représenter un modèle 3D utilise ",{"text":319,"type":31,"marks":320},"la topologie",[321],{"type":208},{"text":210,"type":31},{"text":324,"type":31,"marks":325},"la géométrie",[326],{"type":208},{"text":328,"type":31}," pour définir sa forme et ses frontières.",{"type":25,"attrs":330,"content":331},{"textAlign":27},[332,334,338,340,346],{"text":333,"type":31},"C'est la représentation principale utilisée dans la plupart des systèmes CAD modernes. Souvent converti en ",{"text":335,"type":31,"marks":336},"données ",[337],{"type":208},{"text":339,"type":31},"tessellées pour la visualisation et les flux de travail en aval. Nous avons une explication complète disponible ici : “",{"text":341,"type":31,"marks":342},"Qu'est-ce que B-Rep?",[343],{"type":50,"attrs":344},{"href":345,"uuid":27,"anchor":27,"target":27,"linktype":247},"https://www.techsoft3d.com/resources/blog/what-is-boundary-representation-b-rep-/",{"text":347,"type":31},"”",{"type":166,"attrs":349,"content":350},{"level":185,"textAlign":27},[351],{"text":352,"type":31},"Tessellation",{"type":25,"attrs":354,"content":355},{"textAlign":27},[356,358,362],{"text":357,"type":31},"Le processus de conversion de la géométrie précise en une représentation ",{"text":359,"type":31,"marks":360},"maillée",[361],{"type":208},{"text":363,"type":31}," . Contrôle la précision et la densité des approximations basées sur des triangles.",{"type":25,"attrs":365,"content":366},{"textAlign":27},[367,373,379,384],{"text":368,"type":31,"marks":369},"Cela est fait parce que les systèmes informatiques sont optimisés pour traiter des formes simples comme les triangles, et non les formes complexes d'un vrai design. Les données résultantes sont généralement appelées ",[370],{"type":371,"attrs":372},"textStyle",{"color":17},{"text":374,"type":31,"marks":375},"maillage",[376,378],{"type":371,"attrs":377},{"color":17},{"type":208},{"text":380,"type":31,"marks":381}," ou ",[382],{"type":371,"attrs":383},{"color":17},{"text":385,"type":31,"marks":386},"données de facette.",[387,389],{"type":371,"attrs":388},{"color":17},{"type":208},false,{"gap":17,"_uid":392,"align":17,"count":17,"width":17,"columns":393,"component":435,"remove_padding":390},"5a36ae5f-4fe0-4843-a2e3-8fa5409c28b5",[394],{"_uid":395,"body":396,"alignment":17,"component":159,"is_full_width":390},"56ebce56-1c46-45d1-aacf-d18fb8453fbf",{"type":22,"content":397},[398,400,402,404,406,412,421,430],{"type":25,"attrs":399},{"textAlign":27},{"type":25,"attrs":401},{"textAlign":27},{"type":25,"attrs":403},{"textAlign":27},{"type":25,"attrs":405},{"textAlign":27},{"type":166,"attrs":407,"content":409},{"level":185,"textAlign":408},"center",[410],{"text":411,"type":31},"Modèles B-Rep vs Modèles Tessellés",{"type":25,"attrs":413,"content":414},{"textAlign":27},[415,419],{"text":416,"type":31,"marks":417},"Les modèles B-Rep",[418],{"type":208},{"text":420,"type":31}," définissent une géométrie exacte en utilisant des surfaces mathématiques.",{"type":25,"attrs":422,"content":423},{"textAlign":27},[424,428],{"text":425,"type":31,"marks":426},"Les modèles tessellés",[427],{"type":208},{"text":429,"type":31}," approximent la géométrie en utilisant des triangles.",{"type":25,"attrs":431,"content":432},{"textAlign":27},[433],{"text":434,"type":31},"Les systèmes de CAO utilisent B-Rep pour la précision et l'édition, tandis que les modèles tessellés sont utilisés pour la visualisation, la simulation et l'impression 3D.","columns",{"_uid":437,"body":438,"alignment":17,"component":159,"is_full_width":160},"d604e792-87d6-4047-8a7c-7031f593b17b",{"type":22,"content":439},[440,445,454,459,467,472,477,482,487,492,503,508,525,530,535,540,574,579,584,589,604,609,620,625],{"type":166,"attrs":441,"content":442},{"level":185,"textAlign":27},[443],{"text":444,"type":31},"Modélisation Paramétrique",{"type":25,"attrs":446,"content":447},{"textAlign":27},[448,450],{"text":449,"type":31},"Une approche de modélisation où les dimensions et les caractéristiques sont pilotées par des paramètres et des contraintes. Permet aux conceptions d'être facilement modifiées en changeant les valeurs, avec des mises à jour se propageant à travers le modèle. Souvent représentée et éditée par ",{"text":451,"type":31,"marks":452},"arborescence des caractéristiques.",[453],{"type":208},{"type":166,"attrs":455,"content":456},{"level":185,"textAlign":27},[457],{"text":458,"type":31},"Modélisation Directe",{"type":25,"attrs":460,"content":461},{"textAlign":27},[462,464],{"text":463,"type":31},"Une approche de modélisation qui permet à la géométrie d'être modifiée directement sans s'appuyer sur un historique des caractéristiques. Permet des modifications plus rapides et plus flexibles, particulièrement pour les modèles importés ou sans historique. Souvent utilisée lorsqu'on travaille avec de la géométrie qui manque d'une ",{"text":451,"type":31,"marks":465},[466],{"type":208},{"type":166,"attrs":468,"content":469},{"level":185,"textAlign":27},[470],{"text":471,"type":31},"Topologie et Géométrie",{"type":25,"attrs":473,"content":474},{"textAlign":27},[475],{"text":476,"type":31},"La topologie décrit comment les éléments géométriques sont connectés (faces, arêtes, sommets). La géométrie définit la forme exacte des éléments en utilisant des surfaces et des courbes mathématiques. La topologie définit les relations, tandis que la géométrie définit la forme. La topologie répond à la question « qu'est-ce qui touche quoi ? », tandis que la géométrie répond « à quoi cela ressemble-t-il ? »",{"type":166,"attrs":478,"content":479},{"level":185,"textAlign":27},[480],{"text":481,"type":31},"Structure d'Assemblage",{"type":25,"attrs":483,"content":484},{"textAlign":27},[485],{"text":486,"type":31},"Définit comment les pièces et sous-assemblages sont organisés dans un produit. Les pièces communes peuvent être réutilisées plusieurs fois (instanciation), chacune avec sa propre position et orientation (comme les vis individuelles, etc.). Considérez cela comme la structure hiérarchique d'un design.",{"type":166,"attrs":488,"content":489},{"level":185,"textAlign":27},[490],{"text":491,"type":31},"Contraintes",{"type":25,"attrs":493,"content":494},{"textAlign":27},[495,497,501],{"text":496,"type":31},"Règles appliquées à la géométrie qui définissent des relations telles que la distance, l'angle ou l'alignement. 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Fréquemment stockée dans des formats comme ",{"text":520,"type":31,"marks":521},"STL",[522],{"type":208},{"text":524,"type":31}," et utilisée dans les flux de travail de visualisation et de simulation.",{"type":166,"attrs":526,"content":527},{"level":185,"textAlign":27},[528],{"text":529,"type":31},"Opérations Booléennes",{"type":25,"attrs":531,"content":532},{"textAlign":27},[533],{"text":534,"type":31},"Opérations utilisées pour combiner ou modifier des formes : union, soustraction et intersection. Fondamentales à la fois pour la modélisation solide et polygonale.",{"type":166,"attrs":536,"content":537},{"level":185,"textAlign":27},[538],{"text":539,"type":31},"Modélisation Convergente / Facettée",{"type":25,"attrs":541,"content":542},{"textAlign":27},[543,545,549,551,555,557,561,563,567,568,572],{"text":544,"type":31},"Permet ",{"text":546,"type":31,"marks":547},"les représentations B-Rep ",[548],{"type":208},{"text":550,"type":31},"et ",{"text":552,"type":31,"marks":553},"maillées",[554],{"type":208},{"text":556,"type":31},"de coexister au sein d'un même modèle. Utile lorsqu'on combine des données de scan ou des entrées maillées avec des ",{"text":558,"type":31,"marks":559},"CAD",[560],{"type":208},{"text":562,"type":31},"traditionnelles. 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FDM et FFF se réfèrent essentiellement au même processus.",{"type":156},{"type":166,"attrs":835,"content":836},{"level":168,"textAlign":27},[837,838],{"text":95,"type":31},{"text":173,"type":31,"marks":839},[840],{"type":176,"attrs":841},{"id":99},{"type":166,"attrs":843,"content":844},{"level":185,"textAlign":27},[845],{"text":846,"type":31},"FEA (Analyse par Éléments Finis)",{"type":25,"attrs":848,"content":849},{"textAlign":27},[850,852,856,858,862],{"text":851,"type":31},"Une méthode numérique utilisée pour simuler le comportement physique, tel que le stress ou la déformation. Une des techniques de base utilisées en ",{"text":853,"type":31,"marks":854},"CAE",[855],{"type":208},{"text":857,"type":31}," pour prédire comment une conception se comportera dans des conditions réelles. Fonctionne typiquement sur des représentations ",{"text":859,"type":31,"marks":860},"basées sur des maillages",[861],{"type":208},{"text":863,"type":31},"dérivées de la géométrie CAD.",{"type":25,"attrs":865,"content":866},{"textAlign":27},[867,869,875],{"text":868,"type":31},"Notre partenaire, Ansys, a une excellente ",{"text":870,"type":31,"marks":871},"analyse plus détaillée de FEA ici",[872],{"type":50,"attrs":873},{"href":874,"uuid":27,"anchor":27,"target":27,"linktype":247},"https://www.ansys.com/simulation-topics/what-is-finite-element-analysis",{"text":249,"type":31},{"type":166,"attrs":877,"content":878},{"level":185,"textAlign":27},[879],{"text":880,"type":31},"CFD (Dynamique des Fluides Numérique)",{"type":25,"attrs":882,"content":883},{"textAlign":27},[884,886,889],{"text":885,"type":31},"Une méthode de simulation utilisée pour analyser le flux de fluides, utilisant généralement uniquement un maillage de surface. 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Souvent considérée comme une partie fragile de l'échange de données CAD, car tous les formats ne supportent pas cette information, et elle peut être perdue ou dégradée entre les systèmes.",{"type":166,"attrs":921,"content":922},{"level":185,"textAlign":27},[923],{"text":924,"type":31},"GD&T (Cotations et Tolérances Dimensionnelles)",{"type":25,"attrs":926,"content":927},{"textAlign":27},[928,930,934],{"text":929,"type":31},"Un système pour définir et communiquer les tolérances d'ingénierie. Assure que les pièces sont fabriquées dans des limites acceptables, avec une fonction prévue préservée lorsqu'elles sont assemblées. 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