Answer:
maximum isolator stiffness k =1764 kN-m
Explanation:
mean speed of rotation ![=\frac{N_1 +N_2}{2}](https://tex.z-dn.net/?f=%3D%5Cfrac%7BN_1%20%2BN_2%7D%7B2%7D)
![Nm = \frac{500+750}{2} = 625 rpm](https://tex.z-dn.net/?f=Nm%20%3D%20%5Cfrac%7B500%2B750%7D%7B2%7D%20%3D%20625%20rpm)
![w =\frac{2\pi Nm}{60}](https://tex.z-dn.net/?f=w%20%3D%5Cfrac%7B2%5Cpi%20Nm%7D%7B60%7D)
=65.44 rad/sec
![F_T = mw^2 e](https://tex.z-dn.net/?f=F_T%20%3D%20mw%5E2%20e)
![F_T = mew^2](https://tex.z-dn.net/?f=F_T%20%3D%20mew%5E2)
= 0.1*(65.44)^2
F_T =428.36 N
Transmission ratio ![=\frac{300}{428.36} = 0.7](https://tex.z-dn.net/?f=%3D%5Cfrac%7B300%7D%7B428.36%7D%20%3D%200.7)
also
transmission ratio ![= \frac{1}{[\frac{w}{w_n}]^{2} -1}](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1%7D%7B%5B%5Cfrac%7Bw%7D%7Bw_n%7D%5D%5E%7B2%7D%20-1%7D)
![0.7 =\frac{1}{[\frac{65.44}{w_n}]^2 -1}](https://tex.z-dn.net/?f=0.7%20%3D%5Cfrac%7B1%7D%7B%5B%5Cfrac%7B65.44%7D%7Bw_n%7D%5D%5E2%20-1%7D)
SOLVING FOR Wn
Wn = 42 rad/sec
![Wn = \sqrt {\frac{k}{m}](https://tex.z-dn.net/?f=Wn%20%3D%20%5Csqrt%20%7B%5Cfrac%7Bk%7D%7Bm%7D)
k = m*W^2_n
k = 1000*42^2 = 1764 kN-m
k =1764 kN-m
Answer:
W= 8120 KJ
Explanation:
Given that
Process is isothermal ,it means that temperature of the gas will remain constant.
T₁=T₂ = 400 K
The change in the entropy given ΔS = 20.3 KJ/K
Lets take heat transfer is Q ,then entropy change can be written as
![\Delta S=\dfrac{Q}{T}](https://tex.z-dn.net/?f=%5CDelta%20S%3D%5Cdfrac%7BQ%7D%7BT%7D)
Now by putting the values
![20.3=\dfrac{Q}{400}](https://tex.z-dn.net/?f=20.3%3D%5Cdfrac%7BQ%7D%7B400%7D)
Q= 20.3 x 400 KJ
Q= 8120 KJ
The heat transfer ,Q= 8120 KJ
From first law of thermodynamics
Q = ΔU + W
ΔU =Change in the internal energy ,W=Work
Q=Heat transfer
For ideal gas ΔU = m Cv ΔT]
At constant temperature process ,ΔT= 0
That is why ΔU = 0
Q = ΔU + W
Q = 0+ W
Q=W= 8120 KJ
Work ,W= 8120 KJ
Answer:
A pitot tube is used to measure fluid flow in engineering
So I’m thinking C because they both have a lot to do with design here is my evidence. Structural engineering is a component of civil engineering which focuses on the design and development of infrastructures such as bridges, skyscrapers, dams. Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment. I may be wrong but hope this helped!
Answer:
no idea
Explanation:
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