Starter Subroutine Initialization RINInn for Spring Elements

This subroutine initializes the user’s spring element.

Arguments

The argument list for RINI is:

C-------------------------------------------------------------------------- 
    SUBROUTINE RINI30(NEL   ,IOUT   ,IPROP ,
    3                  IX    ,XL     ,MASS  ,XINER  ,STIFM ,
    4                  STIFR ,VISCM  ,VISCR ,UVAR   ,NUVAR )
C--------------------------------------------------------------------------

Definitions

Argument	Format	Description
`NEL`	Integer read only scalar	Number of elements per group. In Radioss Engine subroutines, the element data are treated by groups for vectorization. This argument is machine-dependent and set by Radioss.
`IOUT`	Integer read only scalar	Output file unit (ROOTL00).
`IPROP`	Integer read only scalar	Property number.
`IX`	Integer array read only	Array of size 4*`NEL` containing spring connectivity. IX(1,i) First node ID IX(2,i) Second node ID IX(3,i) Third node ID IX(4,i) Spring ID
`XL`	Float array read only	Array of size `NEL` containing current element length.
`MASS`	Float array write only	Array of size `NEL` containing element mass.
`XINER`	Float array write only	Array of size `NEL` containing element spherical inertia.
`STIFM`	Float array write only	Array of size `NEL` containing element translational stiffness in time step computation.
`STIFR`	Float array write only	Array of size `NEL` containing element rotational stiffness in time step computation.
`VISCM`	Float array write only	Array of size `NEL` containing element translational viscosity in time step computation.
`VISCR`	Float array write only	Array of size `NEL` containing element rotational viscosity in time step computation.
`NUVAR`	Integer read only scalar	Number of user element variables.
`UVAR`	Float array read write	Array of size `NEL`*`NUVAR` containing user element variables.