LNOD Record - PDS - Help

Plant Design System (PDS) Stress Analysis Interface (PD_Stress)

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The general format of the LNOD record is:

LNOD, node, type, service, Dx, Dy, Dz, Ax, Ay, Az

where:

LNOD

is the record keyword

node

is the restrained node number

type

identifies the action taking place at the node. Currently the only allowed value for this item is RE (for restraint)

Dx

is set to 1 if the node is restrained in the x direction and 0 if not

Dy

is set to 1 if the node is restrained in the y direction and 0 if not

Dz

is set to 1 if the node is restrained in the z direction and 0 if not

Ax

is set to 1 if rotation is restrained about the x axis and 0 if not

Ay

is set to 1 if rotation is restrained about the y axis and 0 if not

Az

is set to 1 if rotation is restrained about the z axis and 0 if not

Using this record requires that movement be restrained in both the positive and negative directions.

Sample LNOD Record

LNOD, 10,RE, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0

When Intergraph option switch 17 is set to a one a second LNOD record will be generated with the following format.

LNOD, node, type, service, NX, NY, NZ, AX, AY, AZ

where:

LNOD

is the record keyword

node

is the restrained node number

type

identifies the action taking place at the node. Currently, the only allowed value for this item is MV (for movement).

service

identifies the service condition. Currently the only allowed value for this item is 1.

NX

is the nozzle normal thermal growth in the X direction. Refer to the equipment schema table 22 column 19.

NY

is the nozzle normal thermal growth in the Y direction. Refer to the equipment schema table 22 column 20.

NZ

is the nozzle normal thermal growth in the Z direction. Refer to the equipment schema table 22 column 21.

AX

is the nozzle alternate thermal growth in the X direction. Refer to the equipment schema table 22 column 22.

AY

is the nozzle alternate thermal growth in the Y direction. Refer to the equipment schema table 22 column 23.

AZ

is the nozzle alternate thermal growth in the Z direction. Refer to the equipment schema table 22 column 24.

Sample LNOD Record

LNOD, 10,MV, 1, 0.0500, 0.0000, 0.0000, 0.0750, 0.0000, 0.0000