LOADCYN

Bulk Data Entry Used to define the loading by segments in cyclic symmetry analysis.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
LOADCYN SID S SEGID S1 L1 S2 L2

Example

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
LOADCYN 11 1.0 5 2.0 21 1.0 22
LOADCYN 11 1.0 4 2.0 21 1.0 22
LOADCYN 11 1.0 1.0 20

Definitions

Field Contents SI Unit Example
SID Identification number. 2

No default (Integer > 0)
S Scale factor. 4

No default (Real)
SEGID Segment identification number.5
0 < Integer ≤ NSEG
In this case, the referenced loading is applied only to the segment which is specified, and this leads to a non-cyclic symmetric loading.
The segment identification number must not exceed the total number of segments (NSEG in CYSYM definition).
Blank (Default)
The referenced load will be rotated and applied to all segments, which results in a cyclic symmetric loading.
Si Scale factor. 4

No default (Real)
Li Load identification number. 3 4

No default (Integer > 0)

Comments

  1. LOADCYN Bulk Data Entry must be referenced by LOAD in the Subcase Information section, in case of cyclic symmetric analysis.
  2. LOADCYN can share a same ID with other LOADCYN or LOADCYH Bulk Entries. LOADCYN cannot share a same ID with other load set Bulk Data Entries.
  3. LOADCYN may reference all types of loads, except GRAV and RFORCE. LOADCYN can also reference an SPCD that defines enforced displacement. The LOADADD Bulk Data Entry is not supported for Li.
  4. The loading defined by LOADCYN is given by:
    P → = S ( ∑ i = 1 N S i P → L i ) MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGabmiuayaala Gaeyypa0Jaam4uamaabmaabaWaaabCaeaacaWGtbWaaSbaaSqaaiaa dMgaaeqaaOGabmiuayaalaWaaSbaaSqaaiaadYeadaWgaaadbaGaam yAaaqabaaaleqaaaqaaiaadMgacqGH9aqpcaaIXaaabaGaamOtaaqd cqGHris5aaGccaGLOaGaayzkaaaaaa@450D@
    Where,
    P → L i MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGabmiuayaala WaaSbaaSqaaiaadYeadaWgaaadbaGaamyAaaqabaaaleqaaaaa@3900@
    Load vector referenced through Li.
    N MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaWcbaGaamOtaaaa@36CA@
    Number of load vectors.
  5. The numbering of segment indices is described in CYSYM Bulk Data Entry.
  6. Nonlinear implicit cyclic symmetry subcases do not allow non- cyclic symmetric loadings and behaviors due to theoretical restrictions. Therefore, the regular method of loadset definition is adopted, that is, to directly reference a loadset ID of either load collectors LOAD(ADD)/DLOAD or a set of loads.