Transcript 1. dia - Neumann Kar
Óbuda University John von Neumann Faculty of Informatics Institute of Applied Mathematics Course
Situation and Event Driven Models for Multilevel Abstraction Based Virtual Engineering Spaces
Lecture and laboratory 1.
Abstraction in product definition
László Horváth university professor http://users.nik.uni-obuda.hu/lhorvath/
Ez a prezentáció szellemi tulajdon. Hallgatóim számára rendelkezésre áll. Minden más felhasználása és másolása nem megengedet t!
A prezentációban megjelent képernyő-felvételek a CATIA V5 PLM rendszernek, az Óbudai Egyetem Intelligens Mérnöki Rendszerek Laboratóriumában telepített installációján készültek, valóságos működő modellekről, a rendszer saját eszközeivel.
CATIA V5 PLM rendszer a Dassult Systémes Inc.
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s a CAD-Terv Kft segítségével üzemel laboratóriumunkban László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Short history of engineering modeling
Demand Geometry based equipment control Reliable structural analysis 1950-1990 Solution CAD/ CAM FEM/FEA, CAE Information loss free information exchange Engineering task specific model objects 1990-2000 IPIM, product model (ISO 13303), AP Form feature driven product definition Highly integrated product model Corporate knowledge driven product definition Multidisciplinary product information Total engineering in virtual 2000 2010 Full feature driven contextual model in PLM Active knowledge in product model in PLM Topics in the course Multilevel abstraction in RFLP structure Virtual engineering space László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Contextual chains of features – the problem
PRODUCT1 Global coordination system1 PART1 Parameters P1 (tab. of S1) Relationships Formula1 (for P1) Rule1 (height of S1) Reaction1 (update P1) SOLID1 PART2 SOLID2 PR1 CCL1 PL1 LN1 RS1 AX1 PLACING PARTS C1 P1-5 OP1 S1 SB1 Placing Part2 on Part1 FUNCTION Part1 carries Part2 László Horváth Dir1 Part 1 Eng1 CG1 In XY P1-5 Int1 C1 Tab1 Ofs XY OP1 S1 PRODUCT1 Dir1 Part 2 Eng2 CG1 In XY CCL1 Pr1 PR1 Dir2 PL1 Ln1 Ax1 LN1 AX1 Sbs1 SB1 Placing1 CF1 Rev1 RS1 Source: Horvath, L. ; Rudas, I.J. ; Szakal, A.: Shifting the human dialogue to knowledge level at modeling of products, In proc. of the 2013 IEEE International Conference on Industrial Technology (ICIT), IEEE, Cape Town, pp. 1398 – 1403.
UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Positioning reference plane in the model space
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Definition of a curve
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Definition of constraint
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Definition of curves
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Definition of curves
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Definition of surface in the context of curve
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Definition of tabulated solid in the context of curve and surface
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Feature which is defined as intersection with two surcaces
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Fillet surface definition in boundary of solid
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Fillet in boundary as individual surface
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Definition of solid between opened boundary and its offset
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Definition of solid between opened boundary and its offset
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Modification of constraint and the modified boundary of solid
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Modification of constraint and the modified boundary of solid
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Modification of curve and the modified boundary of solid
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Modification of reference plane position and the modified boundary of solid
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Propagating part model in PLM data base
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Abstraction levels in RFLP structure
Requirement Requirements the product has to fulfill Function To fulfill its requirements Logical Structure of logical components.
Physical Representations of real world product.
László Horváth UÓ-JNFI-IAM http://users.nik.uni-obuda.hu/lhorvath/
Modeling of product functions
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Understanding logical connections Laboratory task SEMAL1E1
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/
Understanding logical connections Laboratory task SEMAL1E1
László Horváth UÓ-JNFI-IAM http://nik.uni-obuda.hu/lhorvath/