General Mechanical

General Mechanical

state-space matrices with piezo sensor

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    • Md_Salem
      Subscriber

      hello,

      I am using 'SPMWRITE' with coupled field structural system, where Piezo-sensor is used.

      In order to construct output array using :

      *DIM,OUTPUT,,1,2

      Is it possible to define the output of the system as the output voltage of the piezo sensor ? and if so I need to define OUTPUT(1,2) which supose to be voltage/charge on the surface of the sensor, I know that Ux=1,Uy=2, Uz=3 ,ROTx=4, ROTy=5, ROTz=6. So, how to assign the volt/charge of piezo sensor to be the output? i.e OUTPUT(1,2) = ???

      Regards

       

    • Ashish Khemka
      Ansys Employee

      Hi @Md_Salem,

       

      Please see if the following link helps you:

       

      2.5. Piezoresistive Analysis (ansys.com)

       

      Regards,

      Ashish Khemka

      • Md_Salem
        Subscriber

        Hello Ashish ,

        appreciate for your help , but unfortunately this topic disscusses the piezoresistivety, my actuators/ sensors are piezoelectric. The main point for me -which I need help with- is how to get state-space matrices for such system.

        Regards

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