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CELAS4F |
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CELAS4F |
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CELAS4F |
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CELAS4F |
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Bulk Data Entry
CELAS4F – Scalar Spring Property and Connection to Scalar Points Only
Description
Defines a scalar spring element that is connected only to scalar points without reference to a property entry. The corresponding properties on this entry are not affected by translational and rotational stiffness limits specified using PARAM, ELASSTIF.
Format
(1) |
(2) |
(3) |
(4) |
(5) |
(6) |
(7) |
(8) |
(9) |
(10) |
CELAS4F |
EID |
K |
S1 |
S2 |
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GE |
S |
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Field |
Contents |
EID |
Unique element identification number. No default (Integer > 0) |
K |
Stiffness of the scalar spring. No default (Real) |
S1, S2 |
Scalar point identification numbers. S1 or S2, but not both, may be blank or zero indicating a constrained coordinate. Default = 0 (Integer > 0; S1 ≠ S2) |
GE |
Damping coefficient. GE is ignored in transient analysis, if PARAM, W4 is not specified. Default = 0.0 (Real) |
S |
Stress coefficient Default = 0.0 (Real) |
| 1. | This single entry completely defines the element since no material or geometric properties are required. |
| 2. | Only one scalar spring element may be defined on a single entry. |
| 3. | A scalar point specified on this entry need not be defined on an SPOINT entry. |
| 4. | The element force of a spring is calculated from the equation: F = k * (u1 – u2) |
Where, k is the stiffness coefficient for the scalar element and u1 is the displacement of the first degree-of-freedom listed on the CELAS4 entry. Element stresses are calculated from the equation: s = S * F, where, S is the stress coefficient as defined above.
| 5. | This card is represented as a spring or mass element in HyperMesh. |
