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Re: Voltage [ Reply ]
By: Mallouli on 2017-07-11 14:54
[forum:872]

Dear Mr Arnaud

Please, can i send you all my work to verify it ?


Re: Voltage [ Reply ]
By: Mallouli on 2017-07-11 14:46
[forum:871]

Dear Mr Arnaud

I want to develop an analytical model of a bimorph cantilever beam with tip mass.

Please can you help me to change the equations ?

 


Re: Voltage [ Reply ]
By: Deraemaeker on 2017-07-11 09:59
[forum:870]

Dear Marwa,

You are using an anaytical formula based on a 1D approximation of the patch, which is not representative of the true behavior of your piezoelectric patch, so that your FRF is probably not representative of the behavior of your system. I advise you to use the piezoelectric models available in SDT in order to do a proper finite element modeling of this system. See the tutorial and examples in http://www.sdtools.com/pdf/piezo.pdf.

Arnaud


Re: Voltage [ Reply ]
By: Mallouli on 2017-07-10 14:43
[forum:869]

Hello

The shape of the beam is  figure 1 (the bimorph is composed of  two piezoelectric MFC patches below and above the beam)

The input is attached.

The output is the voltage formula is mentioned in the figure 1.  


Re: Voltage [ Reply ]
By: Deraemaeker on 2017-07-10 09:23
[forum:868]

Dear Marwa,

Can you provide the source code ? It is not possible to answer your question without knowing the shape of your beam as well as what is the input/output of your FRF.

Arnaud


Voltage [ Reply ]
By: Mallouli on 2017-07-08 14:01
[forum:867]

 Hello

The response of a bimorph cantilever beam with piezoelectric patches is attached (Voltage).

Please can you indicate me if the shape with anti-resonance is true or not ?