A circular shock absorber, as shown in the figure below, is designed to support a set of sensitive instruments. The system consists of an aluminium circular bar of diameter d1, a hollow circular rubber insulator acting as shock absorber of diameter d2 and height h, and an aluminium circular tube. The bar and the insulator are glued to each other. The rubber insulator is bonded to the aluminium circular tube. The aluminium circular tube is fixed on the ground. You are given the following inputs: F = 1500 N D1 = 5 mm D2 = 50 mm H = 40 mm G = 600 KPa T= 2 mm Select the best answers from those given below: Q1: Evaluate the maximum axial stress in the bar, bar,max = Q2: Evaluate the maximum axial stress in the vertical section of the tube, otube,max = Q3: Evaluate the maximum shear stress occuring in the insulator, Tmax= ✓ MPa; LL F ✓ MPa; Q4: Assuming the bar and tube to be rigid, evaluate the maximum static vertical deflection of the bar, ōmax = ✓ MPa; ✓x10-6 mm

A circular shock absorber, as shown in the figure below, is designed to support a set of sensitive instruments. The system consists of an aluminium circular bar of diameter d1, a hollow circular rubber insulator acting as shock absorber of diameter d2 and height h, and an aluminium circular tube. The bar and the insulator are glued to each other. The rubber insulator is bonded to the aluminium circular tube. The aluminium circular tube is fixed on the ground. You are given the following inputs: F = 1500 N D1 = 5 mm D2 = 50 mm H = 40 mm G = 600 KPa T= 2 mm Select the best answers from those given below: Q1: Evaluate the maximum axial stress in the bar, bar,max = Q2: Evaluate the maximum axial stress in the vertical section of the tube, otube,max = Q3: Evaluate the maximum shear stress occuring in the insulator, Tmax= ✓ MPa; LL F ✓ MPa; Q4: Assuming the bar and tube to be rigid, evaluate the maximum static vertical deflection of the bar, ōmax = ✓ MPa; ✓x10-6 mm

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

ar,max
section of 1.3
2.0
2.4
2.9
3.8
e maxim 4.6
7.0
15.3
he insulat
22.9
70.7
76.4
79.6
✓ MPa;
otube,max =
✓ MPa;
vertical deflection of

A circular shock absorber, as shown in the figure below, is designed to support a set of sensitive instruments. The system consists of an aluminium
circular bar of diameter d1, a hollow circular rubber insulator acting as shock absorber of diameter d2 and height h, and an aluminium circular tube.
The bar and the insulator are glued to each other. The rubber insulator is bonded to the aluminium circular tube. The aluminium circular tube is fixed on
the ground.
You are given the following inputs:
F = 1500 N
D1 = 5 mm
D2 = 50 mm
H = 40 mm
G = 600 KPa
T = 2 mm
Select the best answers from those given below:
Q1: Evaluate the maximum axial stress in the bar, obar,max
Q2: Evaluate the maximum axial stress in the vertical section of the tube, Otube,max =
Q3: Evaluate the maximum shear stress occuring in the insulator, Tmax=
F
d₁
Q4: Assuming the bar and tube to be rigid, evaluate the maximum static vertical deflection of the bar, ōmax =
LO
✓ MPa;
-d₂
Side view
Top view
✓ MPa;
✓ MPa;
Aluminium tube
Aluminium bar
Rubber
x10-6 mi
mm
Ⓡ

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Step 2: Calculation of maximum axial stress in the bar

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Step 3: Calculation of maximum axial stress in the tube

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Step 4: Maximum shear stress in the insulator

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Step 5: Maximum deflection of the bar

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