Hossein Daneshpajooh

6 Questions 16 Answers 0 Followers

Questions related from Hossein Daneshpajooh

Is there any commercially available conductive acoustic impedance matching grease? and which ones have less attenuation/damping?

I need to use acoustic matching grease in between my copper electrode and PZT samples, however the usually used materials like silicon grease are not conductive and may interfere the electrical...

05 May 2018 1,349 1 View

How can I reduce/measure the response phase delay (time delay) between different sensory equipment output signals?

I want to measure the phase lag (time lag) between LDV vibrometer and other equipment such as voltage and current probes with accuracy of 1 degree (~nanoseconds). Unfortunately, the vibrometer has...

10 October 2016 5,187 5 View

How can I couple two parametric Solvers in comsol?

I need to use my first solver outputs as the second's solver inputs. I do it for non-parametric solvers using the dependent variable node options in solver configurations. But I need to run it...

05 May 2015 5,669 2 View

Why my model give me different answers, running with livelink-Comsol/Matlab, or With COMSOL alone?

When I change some parameters in my model using Matlab/Livelink it gave me different answers comparing to comsol alone. Here are the main codes: R1,R2,R3, k, etc were defined correctly! model =...

03 March 2015 1,145 2 View

What is the best way to derive the weak form for pde equation based modeling in COMSOL?

I have read the Comsol documentation but i did not get it. I should use weak form pde to model my problem. the equation is attached in Fig. (equ). This is equation of piezoelectric movement....

04 April 2014 7,719 1 View

How to enter material propertises of PZT materials in Comsol based on Voigt notation?

I am working in version 4.3a structural mechanics module with Piezoelectric Material Model. I am a little confused about which material properties are which in the matrix. The input field for the...

12 December 2013 7,517 1 View