Generator 4. Changes in revision Carsten Thunert GNS mbh G4-News, , GNS mbh

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1 Generator 4 Changes in revision Carsten Thunert GNS mbh generator4@gns-mbh.com Page 1

2 Releases Release Generator May 2017 Changes between 1.3 and 1.4 Release Generator September 2018 Introducitons Manual Release Generator November 2018 New set of Tutorials Release Generator ~ May 2019 Page 2

3 General - Command groups are stored with GUI configurations - Dialogs for rigid bodies and curves are now integrated in the keyword dialogs - Improved ID conflict dialog ID ranges Do we have a conflict when Offset is used For loaded items? Resolution for remaining conflicts - New Toolbar button: print element qualitity criterias - New qualitity criterium: max elements per node Page 3

4 FMVSS201 Sliding Door Track UR line - Dependend of Upper Roof - Sliding Door Group defines the widest door UR line opening ( Type = SD ) - You can overrule the automatic search for the z-coordinate of the widest opening is by specifying a Node or Position. HEAD IMPACT (FMSS201) Page 4

5 FMVSS201 Exclusion Zones 20 cm - During tests no impacts may be nearer than 150 mm 15 cm - For some targets ( e.g. pillar targets ) an enlarged Exclusion Zone exist - Visualization of the Exclusion Zones is done in the L R tab. ZL ZR - Choose impact points with positioning information - Set the color of the Exclusion Zone - Press Calculate and activate Show HEAD IMPACT (FMSS201) Exclusion Zone of BP2 Page 5

6 FMVSS201 - Deactivate all Point constructions - Open the impact point list dialog - URPL: Relative Position to reference point can be specified - URPL: Switch between Generated IP description and a User name. HEAD IMPACT (FMSS201) Page 6

7 FMVSS201 - Big buttons for rotation angle manipulation - Added relocation circles for all Impact Points ( instead of only legal points) - Free Rotation can be shown in impact point list: HEAD IMPACT (FMSS201) Page 7

8 Pedestrian - Impactor reference point and directions can be defined by a Coordinate System - Visualize Spheres contacting the Windscreen and the bonnet used during calculation of the bonnet rear reference line - Number of Spheres depends on Line Point Increment. e.g. 5 * 30 = 150 y-distance between Sphere Centers Calc Params Page 8

9 Pedestrian: 1/3 to 2/3 area simplification - After calculating the area distribution modify the resulting lines to get less suppporting points PEDESTRIAN POSITIONING Activate the Modify Area Line switch - Screen texts with area percentages For child and adult head impactor Page 9

10 Pedestrian: 1/3 to 2/3 area simplification 1. Choose a Limit Line PEDESTRIAN POSITIONING 2. Modify the lines by Add, Delete or Move Points 4. Convert the lines To Bar(s) (old) or To Geometry Curves 3. Or simplify the lines by specifying a kink Angle ( old ) Page 10

11 Pedestrian leg Euro NCAP v8 and China NCAP upper leg test zone PEDESTRIAN POSITIONING Added more construction items: - Grid construction points on bumper - Inner Bumper Reference Line Contact and IBRL Points Contact points Projected to bumper face WAD 930 WAD 775 Internal Bumper Reference Line (limited to 520mm above ground) Page 11

12 Pedestrian leg Euro NCAP v8 and China NCAP upper leg positioning on WAD775 PEDESTRIAN POSITIONING Added construction line defining the impactor angle The line connects the Inner Bumper Reference Line and the WAD930 at impact s y-coordinate WAD930 construction line Inner Bumper Reference Line Page 12

13 Dummy positioning by coordinates Specify an arbitrary number of points on the dummy with coordinates in loaded and final position SEAT-DUMMY POSTIONING Page 13

14 Dummy positioning by coordinates Definition of coordinates is done by loading a csv file. SEAT-DUMMY POSTIONING PointName; Chest ; Head ;... x-source;y-source;z-source;x-target;y-target;z-target; ; ; ; ; ; ; ; ; ; ; ; ; 2 3 Page 14

15 Dummy positioning by coordinates Error to target position SEAT-DUMMY POSTIONING Show arrows to target position Calculate does - a rigid body movement - limb articulation Page 15

16 Barrier positioning - New 'China AE-MDB' barrier type BARRIER POSITIONING - Roof crush supports a second optional Plate symmetrical to the first - Roof crush positioning recognizes if plate is already rotated Positioning the barrier on positive Y (passenger) side: - Roof crush = negative Longitudinal Angle - Side crash Barriers = positive y-coordinates for Wheel Contact points - LS-Dyna template file examples Page 16

17 Presimulation XML: PRE-SIMULATION - Simulation time can be predefined - PAM-CRASH specific improvements: additinal contact parameters: irmv, dthkplk, ifred, xdmp1 - Add output for Stresses from Presimulation to be used in next simulation by adding keywords: LS-Dyna: *Interface-Springback Pamcrash: EXPORT / - Time history items supported for Presimulations Page 17

18 Keywords Rework of the Connectors, which are now organized in Sets instead of Properties. Header: Comments at the beginning of the Input like CAE-Bench definitions. Footer: Data after END keyword like Dummy or Kinematics definitions in LS-Dyna files. Click in Keyword textfield to pick Items like nodes, elements and Parts in the 3D view. Page 18

19 Keywords PAM-CRASH - Added Python support for PYVAR Define Python executable in you settings: - Added support for ELINK and LLINK Elements LS-Dyna Added support for all *CONTACT types Added support for *ELEMENT_SPH Page 19

20 Commands Added option to write commands from session Files to g4.g4s Added support for more short (Generator2, Animator4) commands col txt bar/qua/hex cre pid/mat act sty imp lif/lin/shf/sho imp stc cal usr imp usr exc, imp usr ref vie sca/xtr/ytr Page 20

21 Geometry / Symmetry Check for duplicate Faces and Surface which are Rotated, Translated Or Mirrored. CAD TREATMENT Define a Mirror plane or let Generator4 find it. Page 21

22 Modelling / Loads Forces (single arrow ) and Moments (double arow) MODEL ASSEMBLY Define the Load on a single Node or Node Group* Define the Load s type A default Id is created automatically Set a title (optional) Set a reference system (optional) Define the Load s direction Set the Load s size (optional) *Node Group: Select an existing Group or create a new one by selecting Nodes. Page 22

23 Features: CAD TREATMENT MIDDLE PLANE MESHING MESH OPTIMIZATION FE QUALITY CHECKS MODEL ASSEMBLY SEAT-DUMMY POSTIONING PEDESTRIAN POSITIONING HEAD IMPACT (FMSS201) BARRIER POSITIONING SEATBELT CREATION PRE-SIMULATION And much more... Page 23