Scalar Spring Property and Connection to Scalar Points Only
Description: Defines a scalar spring element that is connected only to scalar points and without reference to a property entry.
Format:
Example:
| Field | Definition | Type | Default |
|---|---|---|---|
| EID | Element identification number. | Integer > 0 | Required |
| K | Stiffness value. | Real | Required |
| S1, S2 | Scalar point identification numbers of connection points. | Integer > 0 | See Remark 2 |
| GE | Structural element damping coefficient. See Remark 4. | Real or blank | 0.0 |
| S | Stress coefficient. | Real or blank | 0.0 |
Remarks:
- Element identification numbers must be unique with respect to all other element identification numbers.
- A blank may be used to indicate a grounded terminal G1 or G2 with a corresponding blank or zero C1 or C2. A grounded terminal is a point whose displacement is constrained to zero.
- This single entry completely defines the element since no material or geometric properties are required.
- If Gi refers to a grid point, then Ci refers to component numbers in the displacement coordinate system specified by CD on the GRID entry.
- If PARAM, W4 is not specified, GE is ignored in transient response analysis. (See Section 5, Parameters, for more information on W4.)
- To obtain the damping coefficient GE, multiply the critical damping ratio C/C0, by 2.0.