Elements

The elements section is enclosed in the cards:

    begin: elements;
        ...
    end: elements;

Every element card has the following format:

    <card> ::= <elem_type> : <arglist>
               [ , output , { yes | no } ] ;

where elem_type is one of the following:

• structural elements:
  • automatic structural
  • beam
  • body
  • couple
  • gravity
  • joint
  • joint regularization

• aerodynamic elements:
  • aerodynamic beam2
  • aerodynamic beam3
  • aerodynamic body
  • aeromodal
  • aircraft instruments
  • air properties
  • rotor

• electric elements:
  • electric

• hydraulic elements:
  • hydraulic

• thermal elements:
  • TODO ...

• output elements:
  • RTAI output
  • stream output
  • stream motion output

• generic elements:
  • bind
  • bulk
  • force
  • genel
  • loadable

• miscellaneous element cards

In case of elements that can be instantiated only once, like the gravity or the air properties elements, the arglist doesn't contain any label; otherwise, a label is expected first, to allow for checks on duplicated elements, namely:

    <arglist> ::= <label> , <normal_arglist>

The data manager reads the element type and the label and checks for duplication. If the element is not defined yet, the proper read function is called, which parses the rest of the card and constructs the element. The elements are read as follows.