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Questions related from Raja Velusamy
I have referred to this paper " Design and research of hybrid piezoelectric electromagnetic energy harvester based on magnetic couple suction-repulsion motion and centrifugal action", 2021. In...
27 July 2022 7,895 0 View
In our experimental setup, we have a 1.5 KW air-cooled spindle motor, and its rpm is controlled by a variable frequency drive (VFD). After switching on the motor, the sensitive equipment like DSO...
14 June 2022 2,199 6 View
How to get the frequency response in terms of voltage from the piezoelectric patch using the ANSYS workbench? Like in this paper, https://www.mdpi.com/1996-1073/12/14/2770
06 June 2022 562 2 View
Monitoring of single-lap bolted joints: In this COMSOL simulation, In solid mechanics, bolt pretension, boundary load (Tensile load), and fixed constraints (only at the top of the bolt) are...
27 June 2021 1,788 0 View
I have two equations for nonlinear piezoelectric energy harvester. Mechanical domain: 𝑞̈(𝑡)^2+𝜁𝜔𝑞̇(𝑡) + 𝜔^2𝑞(𝑡)+Xθ ̈ - 𝜃𝑣(𝑡) + 𝜕𝑈𝑚⁄𝜕𝑞(𝑡) = −𝛤𝑧̈(𝑡) Electrical domain: 𝐶𝑝𝑣̇(𝑡) + 𝑣(𝑡)/𝑅 =...
18 June 2021 1,089 1 View
Connect two unimorph piezoelectric beams series and parallel in COMSOL and ANSYS to get voltage output for series and parallel connection.
20 May 2021 9,891 2 View
How to do Piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch? Piezoelectric coupling between the rectangular substrate and rectangular...
03 March 2021 10,284 3 View
Modal analysis for multimodal piezoelectric energy harvester 1) What is the continuity equation between the main beam part 3 and the branched beam? For single beam, four unknown constants will...
06 May 2020 3,740 0 View
Here the problem is, we cannot able to create uniform mesh for both exponential cantilever beam and rectangular piezoelectric patch. Is there any problem for this analysis?
20 April 2020 777 3 View
Metamaterials ( Meta structures in piezoelectric energy harvesting) uses in piezoelectric energy harvesting. How to identify the considered structure is metastructure or metamaterial? What are the...
03 March 2020 1,203 2 View
We are giving a single value of bandwidth frequency, in the applied random signal. What does that bandwidth mean? It specifies zero to that frequency range or not.
29 February 2020 4,025 3 View
I want to do experimentation for different base acceleration amplitudes (a = 0.3g, 0.5g, 0.7g, 1g) like attached in this image. The problem facing in this experimentation is Using a function...
09 January 2020 5,678 0 View
We are using LabVIEW but don't have the DAQ card for acceleration measurement from the accelerometer. Because of that we cannot able to measure acceleration vs time directly from the...
12 September 2019 6,233 3 View
I have done modal analysis in ANSYS APDL. Some warning is coming after finish the coupling part. Getting some sort of error in the value of results summary. But i have done the same model in ANSYS...
10 June 2019 8,206 3 View
Is it possible to derive the theoretical formulation for rotating cantilever beam as force is a function of rotating speed or displacement. Suppose 1000 rpm applied, during rotation, the beam...
09 May 2019 8,551 3 View
I don't know clearly, It will increase or decrease. In one research paper, as the rotation speed increases, the natural frequency of the rotating cantilever beam decreasing due to spin...
20 August 2018 4,728 7 View
Already they have done in COMSOL software. But i verified for other dimensions and material properties, the obtained results are not satisfied. In that paper, they have done three analysis for...
02 August 2018 3,533 3 View
At first, model is prepared with appropriate material properties. After that, how to couple the electrical potentials of the two electrodes contacted to the phosphor bronze layer? To get open...
02 August 2018 4,098 10 View
To find constants of A1, B1, C1,D1 and A2,B2,C2,D2 in mode shape equation of piezoelectric cantilever beam using MATLAB codes. This can be done with the help of boundary conditions. Even though,...
23 July 2018 7,331 4 View
I tried modal analysis with rotation for cantilever beam with boundary condition as left end is fixed and rotational velocity is applied for all bodies about z axis. But there is no change in the...
07 July 2018 9,694 9 View
The nodes on the top and bottom layers of the piezoelectric material are then coupled for voltages. This essentially creates a common node for each surface that can be used to create an electrode...
10 April 2018 547 3 View
To plot electrical potential vs time in ABAQUS, this sort of error is coming. How to correct this error? Tell me your suggestions regarding this error.
01 January 1970 5,537 0 View
