*SPRING
5. Second field variable.
6. Etc.,uptofivefieldvariables.
Subsequent lines (only needed if the DEPENDENCIES parameter has a value greaterthan five):
1. Sixthfield variable.
2. Etc.,up to eight field variables per line.
Repeat this set of data lines as often as necessary to define the spring stiffness as a function of
temperature and other predefined field variables.
Data lines to define linear spring behavior for SPRING1, SPRING2, or JOINTC elements:
First line:
1. Degree of freedom with which the springs are associated at their first nodes or, for JOINTC
elements, the degree of freedom for which the spring behavior is being defined.
2. For SPRING2 elements give the degree of freedom with which the springs are associated at
their second nodes.
Ifthe ORIENTATIONparameter is included on the *SPRING option when defining spring elements
or on the *JOINT option whendefining joint elements, the degrees of freedom specified here are in
the local system defined by the *ORIENTATIONoption referenced.
Second line:
1. Springstiffness (force per relative displacement).
2. Frequency(in cycles per time, for *STEADY STATEDYNAMICS, DIRECT and *STEADY
STATEDYNAMICS, SUBSPACE PROJECTION analyses only).
3. Temperature.
4. Firstfield variable.
5. Second field variable.
6. Etc.,uptofivefieldvariables.
Subsequent lines (only needed if the DEPENDENCIES parameter has a value greaterthan five):
1. Sixthfield variable.
2. Etc.,up to eight field variables per line.
Repeatthis set of data lines as often as necessary to define the spring stiffness as a function of frequency,
temperature, and other predefined field variables.
Data lines to define nonlinear spring behavior for SPRING1, SPRING2, or J OINTC elements:
First line:
1. Degree of freedom with which the springs are associated at their first nodes or, for JOINTC
elements, the degree of freedom for which the spring behavior is being defined.
18.29–3
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