# 9527kun

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1. ## density of the concrete plates

hi, ich want to optimize the density of the concrete plates in OptiStruct. The Variablen are just only five type density of Materials (rho1 rho2 rho3 rho4 rho5), constrain: von mies stress sigma: sigma = 0.01*density objekt: Weightoptimization. how can i define the density variablen and constrain in OptiStruct? Best Regards, leslie
2. ## Deflection

Hi Guys, i have a question, how can i define Deflection - Condition for truss in HW ? Best Regards, Leslie
3. ## NEW Optimization desvar without relationship

Prakash Pagadala with optiSlang/iSight/ i can import excel-datei for this Typ desvar (of course solver is ansys ^ ^)
4. ## NEW Optimization desvar without relationship

Prakash Pagadala at first i define not the Function, i want to define desvar b und h, the 2 variable have no relationship， something is impossible, but not easy b =: 2, 4, 6，21，33，44: h =: 7, 9, 4，20，40，80; if b = 21 -> h= 40 if b = 33 -> h= 20 if b = 44 -> h= 88 if b = 2 -> h= 9 if b = 4 -> h= 4 if b = 6 -> h= 7
5. ## NEW Optimization desvar without relationship

Hi Guys, i define not the Function, i want to define desvar b und h, the 2 variable have no relationship， b =: 2, 4, 6，21，33，44: h =: 7, 9, 4，20，40，80; if b = 21 -> h= 40 if b = 33 -> h= 20 if b = 44 -> h= 88 if b = 2 -> h= 9 if b = 4 -> h= 4 if b = 6 -> h= 7 How can i define this Typ Parameter in HW, (from excel import ???) Thanks VeryMuch! Leslie
6. ## Torsion Spring +Pin Joint

tinh thanks very much, if i want to define 3 Torsion Spring (x,y,z) for the same Node, i donot think, this way is useful
7. ## Torsion Spring +Pin Joint

tinh Thanks for your help, but i donot know, how to do step 7 in hw (edit card the CELAS1 )? 7) edit card the CELAS1 elems, set C=6
8. ## Torsion Spring +Pin Joint

tinh at first: two bar are connect with pin joint. second: later add a Torsion Spring to this pin joint !! i hope, u understanding what i mean!
9. ## Torsion Spring +Pin Joint

tinh thanks for your help! Can u tell me, how do u define the pin Joint between 2 bars, donot use pins a/b??? how do u define the Torstion Spring between 2 bars, use elas1 ??? i use HW-Panel, not code!
10. ## Torsion Spring +Pin Joint

Hallo Guys, i want to define a Pin-Joint with Torsion Spring (See the foto) at first: two bar are connected with pin joint. second: later add a Torsion Spring to this pin joint. Programming in Hw: for Pin Joint Bar A: pins a : 0 , pins b: 456 Bar B: pins a : 0 , pins b: 0 for torsion spring SPC: Dof4 : 400000 (NM) But this simulation runs wrong!! how can i define right pin joint with torsion spring for two bars???? Best Regards! Leslie
11. ## Pin Joint

Prakash Pagadala you means: Bar A: pin a : 0 pin b; 456 Bar B: pin a : 0 pin b; 0 what can i write in pin a/b, 123456?
12. ## Pin Joint

Hi Guys, i want to define a pin joint for 2 Bars in x-y-z coordinaten: for example: Bar A: pin a : 0 pin b; 456 Bar B: pin a : 456 pin b; 0 but it do not work at all for test problem Thanks very much!!! Leslie
13. ## connector and Joint for 1 D Truss

Prakash Pagadala i try both methoden, it always says: *** ERROR # 1000 *** in the input data: Incorrect data in field # 5. look at the new snapshot.
14. ## connector and Joint for 1 D Truss

Prakash Pagadala i use your methode (Spring as PELAS or PUSH1 or PUSH), but it says: *** See next message about line 55 from file: C:/Users/Leslie/Documents/HM31.fem "CELAS1 1 1 2 123456 1 123456" *** ERROR # 1000 *** in the input data: Incorrect data in field # 5.