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  • SYSTEM FATAL MESSAGE 3001 (READ)

    Dear All, Any idea regarding thie error msg ? THE INPUT DATA BLOCK IN POSITION 11 DOES NOT EXIST. USER INFORMATION: THIS ERROR IS CAUSED BY ONE OF THE FOLLOWING: 1. THE DATA BLOCK IS UNSPECIFIED ON THE DMAP MODULE. 2. THE DATA…

  • BCHANGE in SOL103?

    Sometimes it might be useful to have more control about glued areas between two bcbodies in SOL103. In SOL101 and SOL400 I can use BCHANGE to achieve this but this option is not available in SOL103. My current workaround for SOL103 is to define additional…

  • What is the difference between Old OP2 and Enhanced OP2?

    What is the difference between Old OP2 and Enhanced OP2?

  • Defining small sliding contact in SOL103

    Hey guys, I am currently traying to run Sol103 on a small component where I would like to define a tied and small sliding contact pair. Is it possible to define a small sliding contact in Nastran similar to abaqus? if yes, then where can i…

  • GroundCheck + AUTOSPC explanation sought

    To all I am seeking some explanations or inputs in understanding groundcheck & autospsc I have a large model and groundcheck flags some FAIL for the N+AUTOSPC-SET (G & N are OK). I spent some time “breaking” down the model and have found one…

  • How to understand status of ongoing contact convergence?

    With a long-running linear contact analysis, how can I interpret the f06 output to get a feel for the progress of convergence?

  • It has been requested to perform a modal analysis with modal damping. When I have performed normal modes analysis (Sol 103) in Nastran, it seems that damping is neglected. Is there a way that modal damping can be included in the modal analysis?

    It has been requested to perform a modal analysis with modal damping. When I have performed normal modes analysis (Sol 103) in Nastran, it seems that damping is neglected. Is there a way that modal damping can be included in the modal analysis?

  • is it possible to use ACMS in SOl 112 process ? I use dmp 4 smp 4 according to manual but it gives *** SYSTEM FATAL MESSAGE 3008 (ACMS1PR) MEMORY ALLOCATION FAILURE. What is your suggestion for the configuration ?

    is it possible to use ACMS in SOl 112 process ? I use dmp 4 smp 4 according to manual but it gives *** SYSTEM FATAL MESSAGE 3008 (ACMS1PR) MEMORY ALLOCATION FAILURE. What is your suggestion for the configuration ?

  • How does Nastran include structural damping (GEi) in PBUSH element into modal frequency response (SOL111)? Is it included as complex stiffness term? For example structural damping GE in MAT1 card is added to the stiffness matrix as complex term.

    How does Nastran include structural damping (GEi) in PBUSH element into modal frequency response (SOL111)? Is it included as complex stiffness term? For example structural damping GE in MAT1 card is added to the stiffness matrix as complex term.

  • How can i apply a thermal load using TEMP card plus a load on a grid using DAREA in SOL 111

    How can i apply a thermal load using TEMP card plus a load on a grid using DAREA in SOL 111

  • buckling eigenvalues range

    buckling eigenvalues range

  • Switching off RBE3 elements for optical enhancement of the model

    Hello, I am currently working on a model with a high number of RBE3 elements involved and for better optical performance, I would like to have the visibility of the RBE3 elements in my flexible body switched off. Can someone tell me how can i include…

  • Hello, I would like to write only translations of displacement in SOL 103 not rotations to reduce op2 size and writing time of it. is there any standart solution in DISP card or do we have to look for any special dmap alter ? regards mustafa

    Hello, I would like to write only translations of displacement in SOL 103 not rotations to reduce op2 size and writing time of it. is there any standart solution in DISP card or do we have to look for any special dmap alter ? regards …

  • is there any way to make external super element defitinin for cavity (PSOLID) elements so that include K , M as *.asm and *.pch file during sol 111 solution ?

    is there any way to make external super element defitinin for cavity (PSOLID) elements so that include K , M as *.asm and *.pch file during sol 111 solution ?

  • RLOAD create an undefined grid error if exciation point is inside the superelements. Is there any way to apply dynamic load to the points inside the superlements during sol 111 run after creation of reduced matrices in sol 103 run ?

    RLOAD create an undefined grid error if exciation point is inside the superelements. Is there any way to apply dynamic load to the points inside the superlements during sol 111 run after creation of reduced matrices in sol 103 run ?

  • I am trying to model lateral float into a joint using RBE2-to CBUSH and Linear Gaps. The nodes are coincident. Do the CBUSH and the Linear GAP use the same 2 conincident nodes or does the Linear Gap require a intrmediate node? Can this be done?

    I am trying to model lateral float into a joint using RBE2-to CBUSH and Linear Gaps. The nodes are coincident. Do the CBUSH and the Linear GAP use the same 2 conincident nodes or does the Linear Gap require a intrmediate node? Can this be done?

  • What does "DBCMSG WARNING MESSAGE 36 FROM SUBROUTINE CSTM " mean?

    Can anyone tell me what this warning message is telling me? I've started getting it in my runs but I can't find any information s to what it means. It appears multiple times in the .f06 file. Thanks *** USER WARNING MESSAGE 6064 (DBC)…
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