Short Communication Volume 8 Issue 3
National Research University of Electronic Technology, Russia
Correspondence: Afonin SM, National Research University of Electronic Technology MIET, Moscow, Russia
Received: August 08, 2024 | Published: August 21, 2024
Citation: Afonin SM. Parameters of a nanopiezoengine for astrophysics research. Aeron Aero Open Access J. 2024;8(3):175-177. DOI: 10.15406/aaoaj.2024.08.00205
The static and dynamic parameters of a nanopiezoengine for astrophysics research are determined. The function of the nanopiezoengine is obtained. The parameters of the transverse nanopiezoengine are written.
Keywords: nanopiezoengine, parameter, function, characteristic, astrophysics research
For astrophysics research a nanopiezoengine is applied.1–12 The energy transformation is clearly for a nanopiezoengine.11–34. A nanopiezoengine is promising for nanotechnology, microscopy, interferometers, adaptive optics and astrophysics research.20–42
The static and dynamic parameters of a nanopiezoengine for astrophysics research are written from piezoelasticity and its differential equation.
Piezoelasticity is determined6–42
Si=vmiΨm+sψijTjSi=vmiΨm+sψijTj
Here the control parameter is EmEm the strength electric field or DmDm the electric induction, νmiνmi the piezoconstant is dmidmi the piezomodule orgmigmi the piezocoefficient, sΨijsΨij the elastic compliance, SiSi is the relative displacement, TjTj the strength mechanical field.
Its differential equation6–39
d2Ξ(x,s)dx2−γ2Ξ(x,s)=0d2Ξ(x,s)dx2−γ2Ξ(x,s)=0
Here Ξ(x,s)Ξ(x,s) , s, x , γγ are the Laplace transform of nanodisplacement, the parameter, the coordinate and the propagation coefficient.
The matrix of the nanodisplacements6–39
(Ξ1(s)Ξ2(s))=(W11(s)W21(s)W12(s)W22(s)W13(s)W23(s))(Ψm(s)F1(s)F2(s))
Then the transverse static nanodisplacements
ξ1=d31(h/δ)UM2/(M1+M2)
ξ2=d31(h/δ)UM1/(M1+M2)
To the transverse PZT engine d31= 0.2 nm/V, h/δ = 10, U= 50 V, M1= 0.25 kg, M2= 1 kg its parameters are written ξ1 = 80 nm, ξ2 = 20 nm with 10% error.
If the boundary conditions
Ξ(0,s)=Ξ1(s)=0 for x = 0
Ξ(h,s)=Ξ2(s) for x = h
then the solution at fixed first end of the transverse nanopiezoengine
Ξ(x,s)=Ξ2(s)sh(xγ)sh(hγ)
and
Ξ2(s)γth(hγ)+Ξ2(s)sE11M2s2S0+Ξ2(s)sE11C1S0=d31E3(s)
Therefore, the function at the voltage control and R=0 is determined
W(s)=Ξ2(s)U(s)=d31(h/δ)M2p2/CE11+hγcth(hγ)+Ce/CE11
where Ξ2(s) , CE11 , Ce are the transform the nanodisplacement its second end, the stiffness transverse piezo engine and its load.
At elastic-inertial load for M2≫m ,m the mass of the engine, its function is written
W(s)=Ξ(s)U(s)=kU31 T2ts2+2Ttξts+1
kU31=d31(h/δ)/(1+Ce/CE11) , Tt=√M2/(Ce+CE11)
To the PZT engine Ce = 0.33×107 N/m, CE11 = 3×107 N/m, M2 = 1 kg its parameter is obtained Tt = 0.17×10-3 s with 10% error.
The transverse static nanodisplacement at voltage control
Δh=d31(h/δ)U1+Ce/CE11=kU31U
To the PZT engine d31 = 0.2 nm/V, h/δ = 10, U = 50 V, Ce/CE11 = 0.11, kU31 = 1.8 nm/V its parameter is determined Δh = 90 nm at 10% error.
For the transverse nanopiezoengine mechanical characteristic with maximums values of its parameters are obtained
Δh=Δhmax(1−F/Fmax)
Δhmax=d31(h/δ)U
Fmax=d31S0E3/sE11
To the PZT engine h/δ = 10,U = 50 V, E3 = 1×105 V/m, S0 = 1×10-5 m2, d31 = 0.2 nm/V, sE11 = 10×10-12 m2/N its parameters are received Δhmax = 100 nm, Fmax = 20 N with 10% error.
The transverse nanopiezoengine is used for astrophysics research, interferometers, adaptive optics. The parameters of the nanopiezoengine are obtained for astrophysics research.
The parameters of the nanopiezoengine are received. The function of the nanopiezoengine is obtained for astrophysics research. The parameters of characteristic the transverse nanopiezoengine are determined.
None.
The authors declare that there is no conflict of interest..
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