Óbuda University John von Neumann Faculty of Informatics

Óbuda University John von Neumann Faculty of Informatics Institute of Applied Mathematics Master in Engineering Informatics Course Modeling and design Lecture and laboratory No. 1 Virtual World for Engineers László Horváth http: //users. nik. uni-obuda. hu/lhorvath/

This presentation is intellectual property. It is available only for students in my courses. The screen shots in tis presentation was made in the CATIA V 5 és V 6 PLM systems the Laboratory of Intelligent Engineering systems, in real modeling process. The CATIA V 5 és V 6 PLM systems operate in the above laboratory by the help of Dassult Systémes Inc. and CAD-Terv Ltd. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Contents Lecture About aims and program of this MSc course About the Laboratory Paradigm shifts in engineering modeling Modeling industrial product as system Integrated product information model (IPIM, from 90 s) Organizing modeling capabilities for industries, disciplines and roles Object model of contextual features Communication between human and model generation procedures Essential methods for feature definition How contextual chains of the generic model work? Experiments. RFLP and PPR structures Model integration issues Laboratory MD 1. 1 and MD 1. 2 exercises. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

About aims and program of this MSc course To learn about and experience leading virtual information technology and engineering systems which are wide spreading in leading industries. Study methods for modeling industrial product as system. This is necessary because products have changed: multidisciplinary, cooperating systems, high complexity, cyberphysical-biological systems. Understand descriptions and representations in engineering models. Thinking in information structure and seeing this in the viewport. Generic, contextual knowledge based product representation which is controlled by outside defined parameters. Coordinated human and outside system contributions to integrated model of multidisciplinary product. Integrated application of disciplines such as mathematics, informatics, systems engineering, physics, and engineering areas. Situation and event driven adaptive generic engineering model. Understand recent trend to Integrate theory, methodology, and experience in a single model. Learn about virtual environment which is capable to handle all of the innovation cycle and has active physical connections. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

About aim About the Laboratory and program of this MSc course Laboratory of Intelligent Engineering Systems (Óbuda University) Research in system level and high abstraction centered intelligent product modeling (2005 -). Worldwide recognized and published research. Course laboratories in leading industrial professional virtual environment. Recent world wide achievements are included in courses. Laboratory system applies the representative new generation engineering modeling and management technology by Dassault Systémes. Platforms in laboratory system Current: V 5 (Reference: Boeing 787 Dreamliner) and V 6 (Reference: Airbus A 350) Future plan: 3 DEXPERIENCE in cloud. More information at the site of the laboratory. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Paradigm shifts in engineering modeling The paradigm is an approved totality of thinking, belief, values, and methods in a particular field. Shape model and equipment control definition. (70 s-80 s) Resource based integrated product information model (IPIM, ISO 13303). (90 s) Integrated generic model with knowledge driven contextual model for lifecycle of product (PLM). (2000 -) Multidisciplinary integrated model of product system (RFLP structure) using behavior representation and intellectual property (IP). (2010 -). Organizing modeling capabilities by industry, discipline, and role. (2015 -) Model of cyber-physical-biological system (2016 -) László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Modeling industrial product as system Highly engineered multidisciplinary Discipline independent model of product concept is required Products Product behavior analysis on product concept level Product must be modeled as a system Requirements the product has to fulfill Definition of product in RFLP model structure from systems engineering (SE) Function To fulfill its requirements Logical Active knowledge driven generic product model Structure of logical components. Physical Representations of real world product. Model modifies itself for changed situation and new events through chains of contextually connected feature parameters. László Horváth Collaborating systems operate the product. Cyber-physical-biological system. UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Integrated product information model (IPIM, from 90 s) Unified modeling of product as a whole in a complete, compact and consistent representation: ISO 10303 STEP (Standard for Exchange of Product Model Data). International data communication standard for product model and data exchange. Information serves decision making Model which is capable to describe all product information to support all engineering activities during the lifecycle of product. Model can be shared without loss of information. Some information is not allowed to share or share is restricted. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Organizing modeling capabilities for industries, disciplines and roles Examples from products of the Dassault Systémes Inc. Industries Aerospace & Defense Architecture, Engineering & Construction Consumer Goods & Retail Consumer Packaged Goods & Retail Energy, Process & Utilities Financial and Business Services High-Tech Industrial Equipment Life Sciences Marine & Offshore Solutions for Industrial Equipment Industries CATIA Machine and Equipment Design Engineering: CATIA Machine & Equipment Designer CATIA Shaped Machine & Equipment Designer CATIA Plastic Part & Mold Design CATIA 3 D Master CATIA Electrical Design CATIA Fluid Systems CATIA Systems Engineering Natural Resources Transportation & Mobility László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Organizing modeling capabilities for industries, disciplines and roles Examples from products of the Dassault Systémes Inc. Several roles for electrical systems discipline Systems disciplines Systems Architecture Electrical systems Fluid systems Modelica Systems simulation Modelica Systems libraries System Schematic Designer Electrical 3 D Systems Designer Cable tray 3 D Systems Designer Electrical Manufacturing Preparation Engineer Printed Circuit Board Designer Electrical Designer László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Object model of contextual features General information schema Model information schema Object Feature Class (in taxonomy) Paramaters Relationships (contexts) Procedures Properties Type with parameters Representation. In case of shape feature, topology structured geometry. Contextual chain for propagation of parameter changes. Contextual connection Parameter Model must be contextually consistent. Real-time monitoring and simulation prevent the creation of erroneous results. László Horváth UÓ-JNFI-IAM Feature driven model: feature acts on previously defined features though contextual connections of its parameters. http: //users. nik. uni-obuda. hu/lhorvath/

Communication between human and model generation procedures Using appropriately configured model which is also defined by students at laboratory. Viewport Provides sight into the model space. Serves communication with model generation procedures. No drawing, no editing, this is definition by control of model generation procedures. Definition process can be included in the model to reuse. László Horváth UÓ-JNFI-IAM Shape model Mathematical representation constructed by control of mathematical procedures. It includes a set of contextual surface represenattion in topological structure. http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition Using appropriately configured model which is also defined by students at laboratory. Theories and methods which are understood at definition of model and experiments using active model: Cartesian coordinate system and transformations. Relating model space and plane in it. Definition of shape using dynamic navigator. Object and its parameters. Feature, its attributes and parameters. Context and contextual chain. Active and passive parameter. Constraint as context. Offset of a surface. Boundary representation at model definition. Transformation of full featured solid body. Function of the space pilot device at the definition of model. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition Using appropriately configured model which is also defined by students at laboratory. Work at the mode space in a preselected plane. Dynamic navigator proposes variants and accepts quick human control. High number of objects are generated to prepare arbirary valid modifications in the future by contexts. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition Definition of revolution surface in the context of meridian contour, revolution axis, and extension angles. These parameters can be controlled by their contexts and can be related. This is a generation rule based surface. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition Definition of solid feature between the complex boundary surface and its ofset. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition The procedure which generates the curve places functions at four predefined points to interpolate them. Point positions can be controlled. The modeling system applies standard NURBS representation. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition Generating surface using the tabulation rule in the context of curve, a vector perpendicular to curve, and limits of extension. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition Detail of feature parameter list of the model at current stage. These parameters were defined by modeling procedures. Additional parameters can be defined as required. Parameters can be related by formulas. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition Definition of a tabulated solid using the same closed contour as at rotational part as context. Additional contexts are vector along which tabulation proceeds and tabulated surface as limit. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition Definition of reference plane for a subsequent definition. This plane is not included in boundary. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition Mirror model definition by transformation using the reference plane. The mirrored model is full-featured. It transform the original. The resulted solid body consists of two lumps. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition The original and the transzformated lumps are connected by tabulated solid using appropriate surfaces as limits. Additional context is a closed contour which consists of three circle. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Essential methods for feature definition The original and the transzformated lumps are connected by tabulated solid using appropriate surfaces as limits. Additional context is a closed contour which consists of three circle. Active tree structure shows the contextual features. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. Two more constraints are defined on the previously defined closed contour. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. The constraint is also a modification feature. It has three parameters. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. Ofset parameter value was changed. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. The parameter change was propagated along contextual changes. Contextual parameters gained new values throughout the shape model. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. „Activity” parameter of the highlighted constraints was changed for „False” to male it inactive. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. The constraint is inactive László Horváth UÓ-JNFI-IAM It is not forbidden for the dynamic navigator to allow manual change position of this straight segment of the closed contour any more. http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. Supported by real time checks and simulation, the relevent geometric processing procedures found the change as not feasible. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. The reactivated constraint acted to redefine the valid model. It also can be concluded that the allowed range of constraint offset parameter must be restricted to avoid incorrect model generation attempts when model modifies itself. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. Offset parameter value of the mirroring reference plane is increased in this experiment. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. Fillet feature is defined on a group of topological edges. Real mathematical surfaces are generated in the boundary representation. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

How contextual chains of the generic model work? Experiments. Change of position of contextual points of curve changes shape of body through contextual chains. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Model in RFLP structure Requirements against product. Functional model for requirements. Logical model for functions. Physical level model. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

PPR structure for manufacturing Process model for manufacturing Manufacturing system model Model of manufacturing resources László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Model integration issues A quick outline of modeling for connection of solid part shape model with related models to achieve model integration. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Object model of a solid body László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Propagate a model in a model base László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Integration of a part László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Integrating environment representation László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Integrating material information László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Propagate in a model base László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Integrating engineering connection László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Integration kinematics László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Integration of simulation László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Propagate in a model base László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Work in the laboratory MD 00 Sxxxx 11 Model name: Subject Year T or O Student Task Only actual task related activities are allowed on workstations. Thematic laboratory tasks are mandatory. Specially composed laboratory tasks do not require special skill in advance because teacher instruct actually. This is a contextual system in which model is active in accordance with modeled contexts. Unwanted contexts active: do not use unnecessary objects and procedures at laboratory work. Course program supposes continuous disciplined work. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Laboratory MD 1. 1: Essential methods for feature definition Exercise: MD 1. 1 Development the model which was explained in the previous part of this presentation. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Laboratory MD 1. 2: getting initial skill in model definition Exercise: MD 1. 2 Understanding model space Placing objects in model space Understanding work in plane in space. Understanding contextual chain. László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/

Laboratory MD 1. 2: getting initial skill in model definition László Horváth UÓ-JNFI-IAM http: //users. nik. uni-obuda. hu/lhorvath/