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pratikhyperworks

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  1. FRF as complex number

    Hello Ariane? Thats possible, just define your output options as Both (Mag and Phase ) for Displacement /Vel/ Acceleration while defining the Loadsstep or in output control card and plot it in Hypergraph
  2. Non Linear Quasi static Analysis

    Hello All, I am doing non linear Quasi static analysis for example attached , where i am analyzing the deformation in part 2 due to impactor. I have modelled the two contact surface with GAP elements and have give displacement boundary condition of 100 mm to Impactor using curve. I am using NLPARAM(LGDISP) subcase I get error in Model3.fem *** ERROR # 1461 *** in the input data: Card "METHOD(STRUCTURE)" is not allowed for this subcase type. Even though i have not specified "Method" in Loadcase which i know is used for Eigenvalue extraction as workaround I manually deleted and continued with analysis with Model4.fem But i get error as shown in Model5.out file can anyone help me with these errors? Thanks and Regards Pratik Model3.fem Model4.fem Model5.out
  3. Import with proper orientation

    Also thanks George for your document
  4. Import with proper orientation

    Hello all I have found a work around, I am not sure if you can rotate solids and surfaces, but I could rotate elements in the orientation i wanted. Thanks and Regards Pratik
  5. Import with proper orientation

    Hello all, What are the methods to import CAD data so that it is reoriented in a particular way in Global coordinate system?? For eg. If I want to import a CAD Model from Iges such that its XY plane now corresponds now to XZ plane in global coordinate system in Hypermesh. Is there any particular import options without having to change the orientation with CAD program? Also I find documentation about the create system option for creating local coordinate system bit confusing can anyone explain it with an example? Are loads , constraint always assigned in Global Coordinate system? Thanks Pratik Hyperworks 17
  6. ABD Matrix Laminate Defination

    Hello group I wanted to input the ABD Matrices directly to define a Laminate. Can this be done in hypermesh? Regards Pratik
  7. Setting constraint to erp

    Hello It is due to bug , when creating loadstep from panel browser. create load step from Horizontal Panel. regards Pratik
  8. Setting constraint to erp

    Funny it works at one instance and doesnt work in different instance although loadcase is same. I have sent you files through dropbox.
  9. Setting constraint to erp

    Load step: Modal Frequency response analysis Response type: ERP All freq Dconstraints erp : upperbound 0.2 , I am not able to set this. #subcase not compatible with type of response
  10. Setting constraint to erp

    hello all I am defining optimisation to reduce erp by topology optimisation. My objective is to find optimum material distribution to have low erp my defination goes as dconstraint: Erp: upper bound > (Target values) #### Volumefrac= upperbound 0.3 design volume objective= minimize design volume Loadstep = Modal frequency Response. ###For this setup I get error selected subcase not compatible with type of response while setting constraint on ERP how do i set the erp as target value. Regards Pratik
  11. Hello group. what are the options to use Non linear Modal Frequency Analysis for Anisotropic Visco Elastic Plastic in Optistruct? Regards Pratik Dhuri
  12. Real and Imaginary value as Rsponse in H3D

    Hello, I want result of frequency response analysis in real and Imaginary form in H3D format. I have specified this in load step and also in Global output control . but still I get output in Phase imaginary form. I am want to use this Vectors Real and Imaginary further in Hyperstudy to do Model updating where I have defined my own criteria. Regards Pratik
  13. Hyperstudy-external function

    hello group I have want to know about registering hypermath function in hyperstudy and also how to exchange values between two to definr response See the attached file Best Regards Pratik Hyperstudy Problem.pdf
  14. MATort9

    Hi Prakash So for Normal Anisotropy G13= G23=Gn so what value is expected in G31 .... Gn or Gp? Regards Pratik
  15. Response Defination

    For example the graph (Refer pdf) would be more intuitive to understand effect of each design variable on frequency response both in terms of frequency shift and amplitude value. Any way to achieve this using hyperstudy? FRFresponse.pdf
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