2.19 release - Changelog

Changelog for release 2.19

AquaSim

  • Updates for membranes for more analysis possibilities.
  • No-compression for membranes introduced also for diamond shaped meshed.
  • It has been made possible to introduce nonlinear relationship between force and elongation for flag-shaped membranes.
  • Introduction of BEM method for wind-turbines, and functionality for easy modeling of wind turbines. Activation of functionality for a “Quick-design” possibility for wind turbine analysis and output parameters for easy handling of results.
  • Introduction of functionality and parameters to include internal og external PI controllers to wind turbines. External controllers can be applied tailor made by user through a Python interface.
  • Activation of the delta function for contact between elements in components such that one can reduce number of contact elements.
  • Raileigh damping for beams introduced also for beams with lift loads applied.
  • Enhancements for the handling of wind such that more component types automatically will have windloads introduced to them in case they are above the water line. Wind introduced to most component types including hexagonal nets and Morison freeplates.
  • Update in current reduction functionality such that one have the possibility to account also for wind reduction in case components cover for succeeding components for wind. Also current reduction can be calculated for beam components and behind beam components.
  • Enhancements of spring and node load choice possibilities.
  • Linebreak functionality. Possibility to introduce linebreak at a given load level as alternative to a given step in analysis.
  • Adjustments in results presentations. Rotating velocity is presented as RPM instead of DEG/s. Accelerations and velocity is presented by averaging two timesteps.
  • Generalization of algorithm for calculations of current loads to impermeable membranes and shell. (Presented in report TR-FOU-100004-6?)
  • Advanced buoyancy functionality introduced. This can be important to use in case vertical beams are used stretching far down in the water.
  • More possibilities on Morison elements. One may account for boxed in sea more easily by utilizing the possibility to introduce tangential added mass. Also longitudinal drag coefficient has been changed so that it refers to the cross sectional area instead of surface.
  • Adjustments to the slamming area / coefficients for square Morison load beams to enhance convergence.

AquaEdit

  • Turbin generater (#1582)
    • Turbines can now be added by selecting a vertical element to work as its pivot, and right clicking and choosing Element -> Other -> Create turbine on element
    • A dialog lets user specify turbine properties, including number of blades, turbine torque, system heading (yaw), and blade pitches
    • In addition, a table lets the user specify the blade segments from the beam library
    • WINDMOOR12MW.xml is available as a generic expample of a turbine with the specified segments
  • Duplicate intent fails to copy decorators in certain directions (#1790)
  • Wizards for beam now set appropriate drag diameters when applied (#1786)
  • Varying current and current velocity (#1744)
    • VaryingCurrent table now has updated ui and has the first line (z=0) linked to the timeseries list
    • The other tables on the environment window have been made to match look and functionality
  • Canceling generation of irregular waves now work (#1779)
  • Setting point 3 based on other elements (#1783)
    • Options “Select node to use as Point3” and “Select element to copy relative Point3 from” have been added to the right click menu of elements to help with setting the Point3 based on other objects
  • Deselect quad (#1766)
    • Clicking a selected quad again will now deselect it when using the dedicated select quad tool
  • Non-linear material on membranes (specific to normal net) (#1764)
  • Advanced buoyancy logic on beams (#1768)
  • Generate Hex tool: nodes from side panel snap to bottom panel (#1756)
    • Fixed reference to wrong composition for snapping
  • Measure distance/angle (#1539)
    • Functionality has had minor updates to improve usability
  • Linebreak can now have a max force rather than a specific timestep (#1704)
  • Generate Hex tool: nodes from side panel snap to bottom panel (#1756)
  • Naming convention of springs on hinges (#1753)
    • Names of springs have been unified
  • Beam advanced lift (#1737)
    • Diameter renamed to Chord
  • Lift data can now be plotted on a chart (#1705)
  • Verify model now verifies that angle in lift on beam is always from smallest to largest (#1734)
  • Added error messages to AquaCross when it doesn’t allow drawing
  • Removed requirement for a wave to be 1% larger to be considererd largest when finding the largest irregular wave
  • Emodule less than 100 will be listed as “questionable” low and a warning during verify model

AquaView

  • Fixed some 3d objects not having the correct rotation (#1461)
  • Allow SpeedButtons to have multiple alternative stresses (#1715)
  • Fixed double clicking to select elements for distance between
  • Added tool for measuring distances between nodes or arbitrary points

PostProcessor

  • Added icon
  • Improved functionality for AVS files
  • Option to convert back to AVZ from AVS