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misu_bhowmick

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misu_bhowmick last won the day on November 5 2015

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About misu_bhowmick

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  1. I have a full vehicle with Body, Chassis, Suspension, Axle, Cabin, Floor, Roof, Glass, Windshield, Tyre, etc.. in actual manner as in complete assembly. 2D components are present. Now I want to create 3D in a single component for all the 2D components for my analysis. I don't have enough time to mesh all components in 3D & connect. I want to transform the 2D comp to 3D, the may be I can connect all the solids together into 1 component. Please suggest an option. Is there any Batchmesh available or may be tcl script? The Sample 3D model pic is shared for reference. I want the same thing.
  2. Hi, Prakash, Thanks for reply. But FREQ4 card only takes care of frequency spread over the centre frequency of computation. I want to control the rate of sine sweep in the time domain, hence the rate 1Hz/min or 1Hz/sec is important for my analysis which I am not able to do in frequency response analysis. Need your suggestions...
  3. I am trying to use DELAY CARD but i am unable to use that specific 1hz/min rate..... even if i create load collector , how to use proper card for constraints or some other functionary card is there for representing time???
  4. Hi Rahul thanks for reply....but the thing is like i am able to give excitation over a certain frequency range with a const. damping in Modal frequency response & plot it... Additionally i need to apply the rate 1Hz/min..... i guess some time step or time domain card is needed which i am unable to input.....may be i need to refer Transient Dynamic analysis.......i have no issue with optistruct also...but Nastran will be better for me.
  5. How to perform simulation (Nastran) on a system by applying a sinusoidal load of 0.1g which swept from 10-50 Hz which varies at rate of 1Hz/min ??? How to use the Time domain in solver deck? In Modal Frequency Response i don't use varying rate (1 Hz/min) . So please let me know how to apply the time here.....!!!
  6. i guess you should go for by attached 2-3 times for failed elements, then you simply do tetra re-mesh with 0.1(say) tet collapse criteria. For tetra i don't think you should worry much.
  7. I have one more query; i have FFT data of acceleration time signal on different locations of IP (instrumental panel). How to use this data in modal frequency response (MFRA) analysis in Hypermesh? Thanks in advance.
  8. Thank you very much Prakash Sir...it was very helpful...
  9. I already have PSD data...so can i import this data in Hypermesh? ..if so how....
  10. actually i have actual road load data. now i want to import in hypermesh to get actual simulation. plz guide.
  11. can anyone tell me how to import PSD data(Power spectral density) in Hypermesh12 or 13. ..actually i want to apply actual load to the assembly.
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