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发表于 2011-12-20 17:10:21
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来自 重庆巴南区
DLOAD Dynamic Load Combination or Superposition
Defines a dynamic loading condition for frequency response or transient response problems as a linea combination of load sets defined via RLOAD1 or RLOAD2 entries for frequency response or TLOAD1 or TLOAD2 entries for transient response.
SID Load set identification number. (Integer > 0)
S Scale factor. (Real)
Si Scale factors. (Real)
Li Load set identification numbers of RLOAD1, RLOAD2, TLOAD1, TLOAD2, and ACSRC entries. (Integer > 0)
1. Dynamic load sets must be selected in the Case Control Section with DLOAD = SID.
2. The load vector being defined by this entry is given by
3. Each Li must be unique from any other Li on the same entry.
4. SID must be unique from all TLOADi and RLOADi entries.
5. Nonlinear transient load sets (NOLINi entries) may not be specified on DLOAD entries. NOLINi
entries are selected separately in the Case Control Section by the NONLINEAR command.
6. A DLOAD entry may not reference a set identification number defined by another DLOAD entry.
7. TLOAD1 and TLOAD2 loads may be combined only through the use of the DLOAD entry.
8. RLOAD1 and RLOAD2 loads may be combined only through the use of the DLOAD entry. |
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