Calculate the braking moment of the measured brake, using first approach if you know that P0 [N]=50N, μ=0.4 and length of loaded spring – L1=190mm.
Calculate the braking moment of the measured brake, using first approach if you know that P0 [N]=50N, μ=0.4 and length of loaded spring – L1=190mm.
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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Calculate the braking moment of the measured brake, using first approach
if you know that P0 [N]=50N, μ=0.4 and length of loaded spring – L1=190mm.
![2.Theoretical and Experimental Research
2.1 Experimental measurements
2.1.1 Spring
Load of the spring – m = 30kg
Free length of the spring – Lo = 136mm
Length of loaded spring – L1 = 128mm
Number of coils – i = 12
m [kg]
Diameter of the material – d = 5mm
Average spring radius – r = 12.2mm
2.1.2 Brake
2.1.2.1 Brake Spring
Free length of the spring – Lo = 205mm
Number of coils – i = 9
Diameter of the material – d = 8mm
Average spring radius- r = 26mm
Diameter of braking drum – D = 295mm
Lever 1 length -L = 450mm
Lever 2 length – L1 = 180mm
01
otosiMF](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F625133a1-9284-4226-a925-e37fb2eb3315%2F70202e63-253f-4a37-b323-7c479b20dc11%2Fa6myf2e_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2.Theoretical and Experimental Research
2.1 Experimental measurements
2.1.1 Spring
Load of the spring – m = 30kg
Free length of the spring – Lo = 136mm
Length of loaded spring – L1 = 128mm
Number of coils – i = 12
m [kg]
Diameter of the material – d = 5mm
Average spring radius – r = 12.2mm
2.1.2 Brake
2.1.2.1 Brake Spring
Free length of the spring – Lo = 205mm
Number of coils – i = 9
Diameter of the material – d = 8mm
Average spring radius- r = 26mm
Diameter of braking drum – D = 295mm
Lever 1 length -L = 450mm
Lever 2 length – L1 = 180mm
01
otosiMF
![2.2.2.1 First approach for determine the braking moment
If we know that :
P1 = CT.6 [N]
Where:
P1 [N] – Force on the main spring of the brake;
CT [N/m] – Theoretical elastic factor of the main spring of the brake;
8 [m] – Deformation of the main spring of the brake.
Braking moment will be:
(P – Po). µ. D. L
[Nm]
Mpri
L1
Where:
P1 [N] – Force in the main spring;
Po [N] – Force in the secondary spring;
H - theoretical friction factor between brake pad and drum;
D (m] – drum diameter;
L [m] – length of the first lever;
L1 [m] – length of the second lever.
Soffa MF](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F625133a1-9284-4226-a925-e37fb2eb3315%2F70202e63-253f-4a37-b323-7c479b20dc11%2Fk6yf95k_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2.2.2.1 First approach for determine the braking moment
If we know that :
P1 = CT.6 [N]
Where:
P1 [N] – Force on the main spring of the brake;
CT [N/m] – Theoretical elastic factor of the main spring of the brake;
8 [m] – Deformation of the main spring of the brake.
Braking moment will be:
(P – Po). µ. D. L
[Nm]
Mpri
L1
Where:
P1 [N] – Force in the main spring;
Po [N] – Force in the secondary spring;
H - theoretical friction factor between brake pad and drum;
D (m] – drum diameter;
L [m] – length of the first lever;
L1 [m] – length of the second lever.
Soffa MF
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