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HVE and HVE-2D Version 6.00 Available May 2008
(updated May 20, 2008)


Status of Version 6.00
- - Now Shipping

Release Date - - 20 May 2008

This highly anticipated release offers extensive improvements and enhancements to the user interface and compatible physics models. Here is a brief overview of some of the enhancements users will find in Version 6.00:

Enhancements

    DyMESH Version 2.0 - DyMESH has been significantly improved in the following areas:

    • Multi-vehicle Collision Simulation
    • Vehicle Body vs. Environment Interaction (Rollover Simulation)
    • Contact Algorithm and Deformation
    • Force and Acceleration vs. Time History
    • Restitution Modeling

    Benchmark testing also shows that code optimizations have reduced event run times by as much as 90 PERCENT! These run time improvements make the use of DyMESH practical for studying any real-world collision scenario. Here is a brief sample of the run time reductions for DyMESH validation cases:


    Case/Event
     HVE V6.00 
    Run Time
     HVE V5.20 
    Run Time
    Run Time Reduction
      SimonDyMESHValidationSuite1_1 
      SIMON, Test 1
    3 min 37 sec
    32 min 33 sec
    89%
      SimonDyMESHValidationSuite2a 
      SIMON, Test 15
    2 min 52 sec
    26 min 52 sec
    89%

      SimonDyMESHValidationSuite4 
      SIMON, Test 13

    7 min
    68 min
    90%

      SimonDyMESHValidationSuite6 
      SIMON, Test 12

    2 min 56 sec
    6 min 16 sec
    53%

    More details about the improvements to DyMESH are presented in the Technical Session of the Winter 2008 EDC Technical Newsletter.

    Additionally, the new Advanced Mesh Options dialog allows the DyMESH user to assign tessellation to a specific region of the vehicle. This "Super-Tessellation" provides the following benefits:

    • Tessellates only the region of interest (faster simulation)
    • Allows for the simulation of pole impacts

    The Advanced Mesh Options dialog allows the user to select a region of the vehicle for detailed tessellation.


    AutoConnect Tow and Towed Vehicles - EDSMAC4 provides an option for automatic matching of the connection heights between tow and towed vehicles. The user can choose between settings of Manual (User-Adjusted), Adjust Tow Vehicle, Adjust Trailer, or Adjust Both Equally using the Calculation Options dialog for the event.


    EDSMAC4 CalcOptions dialog showing the Inter-Vehicle Connection options where the
    user specifies the connection height matching behavior between tow and towed vehicles.


    EDSMAC4 Steer Degree of Freedom - EDSMAC4 now supports the Steer Degree of Freedom model as discussed in the Technical Session of the Summer 2007 EDC Technical Newsletter. A great application of this feature is in the situation where a vehicle is spinning and/or sliding after a collision, and the driver is disabled and not providing steering input. In this situation, the vehicle is essentially self-steering based upon its steering system geometry and the current (post-impact) slip angle at each tire. The Steer DOF Model can simulate the post-collision steer angle history, providing an obvious improvement in the crash reconstruction.

    EDSMAC4 Damage Reporting - EDSMAC4 now has improved post processor logic for matching the CDC, PDOF, Delta-V and Peak Acceleration to a Damage Range. The results are presented in the Damage Data report in Playback.

    Show Joints - Icons for each joint connection between segments on humanoids are now displayed in the Human Editor.


      Human Editor displaying an Adult Male Pedestrian. Note the green icons for joints at the connection between each segment .

    Vehicle Mesh Tessellation in EDSMAC - EDSMAC users will now have the option to apply tessellation to the mesh of a generic vehicle which will improve the visualization of the damage profiles of vehicles involved in collision simulations.

    IPC Redesign - The Inter-Process Communication (IPC) has been further redesigned to utilize shared memory for communication between HVE and all HVE-compatible physics programs. This redesign eliminates the use of sockets, thereby avoiding any conflicts with firewall settings or other Internet security programs.

    CalcOptions Dialog for GBF - GBF users will now find additional parameters available in a Calculation Options dialog.

    Vehicles Added to EDVDB Vehicle Database - The following table identifies the vehicles that have been added since the last update to the EDVDB vehicle database:

    Vehicle
    Year Range
    Chevrolet Tahoe
    1992 - 1999
    Ford Explorer
    2002 - 2005
    Ford F150 Pickup
    2004 - 2008
    Ford Five-Hundred
    2005 - 2007
    GMC Yukon
    1992 - 1999
    Jeep Grand Cherokee
    2005 - 2008
    Lincoln Aviator
    2002 - 2005
    Mercury Montego
    2005 - 2007
    Mercury Mountaineer
    2002 - 2005
    Nissan Pathfinder
    2005 - 2008

Please visit the Products pages of our website for more information about HVE and HVE-2D.


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