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CBUSH element

Solution Partner Pioneer Solution Partner Pioneer
Solution Partner Pioneer

hi all,

 

i am just doing modal analysis of an electronic box. in that i have connect the diskdrives by using CBUSH element. after connecting CBUSH element i am getting error message 316,350 and 9002.

please help me how to use CBUSH element and how to connect it betweeen two solids.

i have attached the model.please go through...

 

 

regards,

shreeharsha

2 REPLIES

Re: CBUSH element

Solution Partner Phenom Solution Partner Phenom
Solution Partner Phenom

Hello!,

Simply read the NX Nastran output file *.f06 and search for word FATAL, you will have there the reason of the error: you have defined CBUSH element no. 450 where the same node is used twice to orient the element.

 *** USER FATAL MESSAGE 350 (IFS350)
     THE FOLLOWING GRID OR SCALAR POINTS ARE SPECIFIED MORE THAN ONCE ON THE BULK DATA ENTRY SHOWN BELOW:
        408
 *** USER FATAL MESSAGE 316 (IFPDRV)
     ILLEGAL DATA ON BULK DATA ENTRY CBUSH   
     User information:
     See Bulk Data entry description in Section 5 of the NX NASTRAN
     Quick Reference Guide. If you are using the large field format make
     sure the number of entries is even.
 CBUSH        450       8     366     408     408                                

Editing the element 450 we see the reason of the error:

cbush-error.jpg

 

Simply instead the third-node use the option CSYS = Basic Rectangular, and you are done!.

Best regards,
Blas.

Blas Molero Hidalgo, Ingeniero Industrial, Director
IBERISA • 48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog Femap-NX Nastran: http://iberisa.wordpress.com/

Re: CBUSH element

Solution Partner Pioneer Solution Partner Pioneer
Solution Partner Pioneer

thank you sir.

it works well...