CDAMP2
Bulk Data Entry Defines a scalar damper element without reference to a property entry.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| CDAMP2 | EID | B | G1 | C1 | G2 | C2 |
Example
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| CDAMP2 | 2 | 3.12 | 12 | 2 |
Definitions
| Field | Contents | SI Unit Example |
|---|---|---|
| EID | Unique element
identification number. No default (Integer > 0) |
|
| B | Value of the scalar
damper. No default (Real) |
|
| G1, G2 | Geometric grid point
identification number. Default = blank (Integer ≥ 0) |
|
| C1, C2 | Component number in the
displacement coordinate system specified by the
CD entry of the GRID
data. Default = 0 (0 ≤ Integer ≤ 6) |
Comments
- Zero or 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.
- Scalar points may be used for G1 and/or G2, (with a corresponding C1 and/or C2 of zero or blank). If only scalar points and/or grounded terminals are involved, it is more efficient to use the CDAMP4 entry.
- This single entry completely defines the element since no material or geometric properties are required.
- The two connection points (G1, C1) and (G2, C2) must be distinct.
- When the SPSYNTAX setting on the SYSSETTING I/O Options Entry is set to CHECK (default) or STRICT, it is required for grid/component pairs (G#/C#) that the component be 0 or blank when the grid reference is a scalar point (SPOINT), and that the component be > 1 when the grid reference is a structural grid point (GRID). When SPSYNTAX is set to MIXED, it is allowed for grid/component pairs (G#/C#) that the grid reference be either a scalar point (SPOINT) or a structural grid point (GRID) when the component is 0, 1 or blank; interpreting all of these as 0 for scalar points and as 1 for structural grids. When the component is greater than 1, the grid reference must always be a structural grid (GRID).
- Scalar damper elements are ignored in heat transfer analysis.
- This card is represented as a spring or mass element in HyperMesh.