MECAmaster For CATIA V5 Luca Gentini (EN/MME)

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Presentation transcript:

MECAmaster For CATIA V5 Luca Gentini (EN/MME) 03.03.2016

outlook What is MECAmaster? How MECAmaster works Practice example MECAmaster at CERN Conclusions 03.03.2016 Luca Gentini– EN-MME

MECAmaster Assembly software 3D Tolerances : Analyse and Optimise assembly architecture, process and tolerances and then master its design at lower cost. 3D Loads : Analyse with a modelisation and calculation the propagation of static loads in an assembly. Hyperstatism : Identify the overconstraints or mobilities in an assembly and solve them. 03.03.2016 Luca Gentini– EN-MME

3d tolerances Assembly architecture, process Geometrical quality and tolerances … Action on the assembly Action on the component During the preliminary design, decrease the 3D effects optimizing : Components interfaces (Position / Type) Assembly process (Assembly procedures / mock-up … ) During the detailed design Functional definition of tolerances Specifications 03.03.2016 Luca Gentini– EN-MME

Definition of tolerances O IT X,Y,Z IT= IT A2 + IT B2 + minor shape error [IT A2 ; IT B1] INTERFACE 03.03.2016 Luca Gentini– EN-MME

Definition of tolerances X,Y,Z O IT ???? Luca Gentini– EN-MME

Definition of tolerances Point 1 ITx; ITy, ITz Plane 1 X,Y,Z ITx; ITy Point 2 ITx; ITy, ITz 03.03.2016 Luca Gentini– EN-MME

Definition of tolerances 03.03.2016 Luca Gentini– EN-MME

Mecamaster assembly Example Put the constraints between each pieces to fix the 6 degrees of freedom Edit the constraints inserting the drawing tolerance values 03.03.2016 Luca Gentini– EN-MME

Mecamaster and catia MECAmaster works simultaneously with CATIA. One just needs to open it when the CATIA Product is already opened. The MECAmaster’s toolbar appears in front of CATIA. We cannot work on several products at the same time. 03.03.2016 Luca Gentini– EN-MME

Mecamaster and smarteam When we open MECAmaster, it generates simultaneously a new MECAmaster product. Each MECAmaster constraint is considered as a CATIA shape. At each constraint modification (for example a value modification) MECAmaster generates a new CATIA shape which must be saved. 03.03.2016 Luca Gentini– EN-MME

Mecamaster and smarteam CAT Product ST000001_01 Analysis assembly CAT Product ST000002_01 CATIA Assembly Preconized SMARTEAM structure Analysis assembly and MECAmaster assembly should have the same Item. It would be nice if the CATIA shapes also have the same Item of the analysis assembly. CAT Product ST000003_01 CAT Part ST000004_01 CAT Part ST000005_01 CAT Part ST000006_01 CAT Product ST000001_02 MECAmaster Assembly CAT Others ST000001_03 CAT Others ST000001_04 CAT Others ST000001_05 03.03.2016 Luca Gentini– EN-MME

Example 03.03.2016 Luca Gentini– EN-MME

Mecamaster at cern CERN IS CURRENTLY EVALUATING MECAmaster Training: 3 days training for “specimen” people has been done (4x designers, 2x engineers, 1x GrACQ member). Working stations: We can install MECAmaster on all computers, but we have just ONE license on a USB key. People working on: A new fellow works on MECAmaster at 50% wt. He will work on pilot jobs to evaluate the program. Support: Currently, there is not a MECAmaster support at CERN. Our support takes care only about problems related to SMARTEAM and program installation. 03.03.2016 Luca Gentini– EN-MME

Very good to evaluate and improve the design. (MY) Conclusions Make a whole MECAmaster assembly of complex systems takes a lot of time. Difficult to create constraints which simulate the reality. It does not manage the hyperstaticity. The results must be carefully interpreted. They are not valid for qualification. Very good for series productions. Quality manufacturing class, statistics, feasibility, etc. Very good to evaluate and improve the design. Only program at CERN to do this kind of calculation! 03.03.2016 Luca Gentini– EN-MME

Thanks for you attention Mecamaster at cern Key people USB licence responsible Marta Garcia Carnero 112 03-008 161377 Fellow Riccardo Peron 376 01-001 Fellow supervisor Federico Carra Diego Perini 376 01-012 112 02-013 167465 163284 GrACQ reference member Philippe Trilhe 112 02-003 163957 Thanks for you attention 03.03.2016 Luca Gentini– EN-MME