During your in-service training, you are tasked with the analysis of an automotive belt layout illustrated in the figure. The diameters of respective pulleys are:

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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DI 10:08
P/S PUMP
ALTERNATOR
IDLER
CRANKSHAFT
A/C
COMPRESSOR
During your in-service training, you are
tasked with the analysis of an automotive
belt layout illustrated in the figure. The
diameters of respective pulleys are:
76 mm (Diameter of the
E alt
alternator),
= 102 mm (Diameter of the
crankshaft),
50 mm (Diameter of the P/S
pump),
• Pac = 25 mm (Diameter of the A/C
ас
Compressor),
The P/S pump is accelerated from n1 = 60
rev/min to n2
crankshaft completed Ner 320 rev. Analyse
the system and then calculate:
= 520 rev/min after the
II
Transcribed Image Text:DI 10:08 P/S PUMP ALTERNATOR IDLER CRANKSHAFT A/C COMPRESSOR During your in-service training, you are tasked with the analysis of an automotive belt layout illustrated in the figure. The diameters of respective pulleys are: 76 mm (Diameter of the E alt alternator), = 102 mm (Diameter of the crankshaft), 50 mm (Diameter of the P/S pump), • Pac = 25 mm (Diameter of the A/C ас Compressor), The P/S pump is accelerated from n1 = 60 rev/min to n2 crankshaft completed Ner 320 rev. Analyse the system and then calculate: = 520 rev/min after the II
DI 10:08
the speed variation for Belt 1(Alternator -
Crankshaft): Avbelt1 :
m/s and
and Avbelt2
m/s for
belt 2 (Crankshaft - Pump - Compressor).
The angular acceleration of each pulley are
respectively,
• Aalt =
rad/s?
• Acr
rad/s?
aps
rad/s?
• Aac
rad/s2
The linear distance covered by a point on
each belt during acceleration are
m for belt 1
and
m for belt 2.
The total number of revolutions at the A/C
compressor during acceleration is
rev
The total acceleration time, tacc
II
||
Transcribed Image Text:DI 10:08 the speed variation for Belt 1(Alternator - Crankshaft): Avbelt1 : m/s and and Avbelt2 m/s for belt 2 (Crankshaft - Pump - Compressor). The angular acceleration of each pulley are respectively, • Aalt = rad/s? • Acr rad/s? aps rad/s? • Aac rad/s2 The linear distance covered by a point on each belt during acceleration are m for belt 1 and m for belt 2. The total number of revolutions at the A/C compressor during acceleration is rev The total acceleration time, tacc II ||
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