Calculate the line parameters ????′, ????′, ????′, and ????′ for a coaxial line with an inner conductor diameter of 0.5 cm and a
n outer conductor diameter of 1 cm, filled with an insulating material where ???? = ????0, ???????? = 4.5, and ???? = 10−3 ????⁄m. The conductors are made of copper with ????c = ????0 and ????c = 5.8 × 107 ????⁄m. The operating frequency is 1 ????Hz.
(a) Calculate the line parameters at 1 GHz.
(b) Compare your results with those based on CD Module 2.2 Include a printout of the screen display.
(a) Calculate the line parameters at 1 GHz.
(b) Compare your results with those based on CD Module 2.2 Include a printout of the screen display.
1 answer:
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Answer:
a)σ₁ = 265.2 MPa
b)σ₂ = -172.8 MPa
c)
d)Range = 438 MPa
Explanation:
Given that
Mean stress ,σm= 46.2 MPa
Stress amplitude ,σa= 219 MPa
Lets take
Maximum stress level = σ₁
Minimum stress level =σ₂
The mean stress given as
2 x 46.2 = σ₁ + σ₂
σ₁ + σ₂ = 92.4 MPa --------1
The amplitude stress given as
2 x 219 = σ₁ - σ₂
σ₁ - σ₂ = 438 MPa --------2
By adding the above equation
2 σ₁ = 530.4
σ₁ = 265.2 MPa
-σ₂ = 438 -265.2 MPa
σ₂ = -172.8 MPa
Stress ratio
Range = 265.2 MPa - ( -172.8 MPa)
Range = 438 MPa