Comments

• Thanks again, Victor.

  in Using batch file, script or something else Comment by suktan December 2020
• Thank you Victor. Is it still possible to use batch file or script to automatically run separate simulations? Just to know an alternative.

  in Using batch file, script or something else Comment by suktan December 2020
• Just realized that I can use time-dependent load in nonlinear static simulation. Is it a correct way to do that?

  in Using batch file, script or something else Comment by suktan December 2020
• Thanks!

  in frequency dependent modulus Comment by suktan October 2018
• Thanks!

  in 2D geometry Comment by suktan May 2018
• Victor: Thanks for looking.

  in Rayleigh damping causing problem Comment by suktan January 2018
• Are you using Mecway 8?

  in Rayleigh damping causing problem Comment by suktan January 2018
• Rayleigh is applied to the rubber surround. It is supported by the internal dynamic solver.

  in Rayleigh damping causing problem Comment by suktan January 2018
• Thank you.

  in Skipping initial data in dynamic simulation Comment by suktan January 2018
• Sorry, I did not attach the right file. The file is attached now. It works fine with Rayleigh disabled.

  in Rayleigh damping causing problem Comment by suktan January 2018
• Thanks a lot Victor.

  in Inconsistent results between full 3D (360 deg.) and one-quadrant (90 deg.) models in dynamic 3D Comment by suktan January 2018
• I see. Thanks.

  in Multiple curves in timeline and zoom-in/out capability Comment by suktan January 2018
• Thank you Victor.

  in Cone speaker dynamic simulation Comment by suktan January 2018
• Hi Victor, Full 3D model's first mode is at 65.52 Hz. On the other hand, first mode of the one-segment mode is 279 Hz. Any idea? Thanks.

  in Cone speaker dynamic simulation Comment by suktan January 2018
• Without scaling the mass, mode 1 of modal analysis doesn't seem right. Did I make anything wrong?

  in Cone speaker dynamic simulation Comment by suktan January 2018
• Dear Victor, Happy New Year! Thanks for your new year gift pointing the issues and giving suggestions. Should I scale materials' mass accordingly of the one-segment model for modal analysis? I got very strange result without doing so. Cheers. S…

  in Cone speaker dynamic simulation Comment by suktan January 2018
• Thank you, Victor.

  in Transient simulation in Dynamic Response 3D Analysis Comment by suktan September 2017
• Thank you, Victor. I am confused about the terminologies used in different FEA tools. Yes, I was referring to elements with midside nodes such asTet10, Hex8, etc.

  in second-order mesh Comment by suktan July 2017
• I need to use elastic support for the presence of bonded contact. Is it a trial and error step to adjust the stiffness parameter? I can set it as high as possible as long as the solver converges. Correct?

  in symmetry boundary condition Comment by suktan June 2017
• Thanks!

  in meshing with multithread Comment by suktan June 2017
• Thank you, Victor.

  in symmetry boundary condition Comment by suktan June 2017
• Can it be multithread in future release?

  in meshing with multithread Comment by suktan June 2017
• Sorry, bonded contact is supported by CCX with TIE option enabled. It seems that I can use displacement constraint to replace elastic support in this case.

  in Switching from linear to nonlinear static 3Dwith CCX solver Comment by suktan June 2017
• Hi Sergio, I currently aim for deformation estimation. I wan to learn some basics of FEA and modelling from this exercise. Since I can do simple compression test as stated, FEA result can be verified. I can then know whether I made something wrong …

  in Simulating a compressed EVA pad Comment by suktan May 2017
• I came across a page of google book "Physical Testing of Rubber". Although my compression test is not perfect, I think the equation is still useful for me to estimate the Young's modulus (E) in a different way. Well my sample is EVA disc instead of …

  in Simulating a compressed EVA pad Comment by suktan May 2017
• Thanks a again, Sergio! It seems that we better get detailed specs from supplier or test the rubber material by load deflection or tensile test. Shore is not reliable. Correct? Sorry, my background is EE. A newbie in this area.

  in Simulating a compressed EVA pad Comment by suktan May 2017
• Thank you, Dave and Sergio. Very useful hints! I will try CCX for hyperelastic. Regarding conversion from Shore A to Young's modulus, Wikipedia shows three equations. For Shore A 28, I have 1.0512 MPa, 0.633 MPa and 1.0416 MPa. The middle is near…

  in Simulating a compressed EVA pad Comment by suktan May 2017
• Thank you for your clear explanation. It is very helpful!

  in Resonant frequency (Helmholtz resonantor) of a cavity Comment by suktan July 2016
• Hand calculation and the online calculator are approximation. Correct understanding?

  in Resonant frequency (Helmholtz resonantor) of a cavity Comment by suktan July 2016
• Thank you tcarson! I tried the link of mh-audio and got the same result. Now my question is solved.

  in Resonant frequency (Helmholtz resonantor) of a cavity Comment by suktan July 2016
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