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Question 4 A thin disk is supported on spring-mounted bearings with vibration pickup and strobotac, as shown in Fig. Running at 800 rpm cew, the original disk indicates a maximum amplitude of 2.90 mm at 45° cw from a reference mark on the disk o Next a trial weight of 3.0 oz is added at the rim in a position 91°cw from the reference mark and run at the same speed. If now the new unbalance is 6.0 mm at 80° cw from the reference mark, determine the position and weight necessary to balance the original disk o. 45 35 30 Ref 60

Question 4 A thin disk is supported on spring-mounted bearings with vibration pickup and strobotac, as shown in Fig. Running at 800 rpm cew, the original disk indicates a maximum amplitude of 2.90 mm at 45° cw from a reference mark on the disk o Next a trial weight of 3.0 oz is added at the rim in a position 91°cw from the reference mark and run at the same speed. If now the new unbalance is 6.0 mm at 80° cw from the reference mark, determine the position and weight necessary to balance the original disk o. 45 35 30 Ref 60

Elements Of Electromagnetics
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 4 A thin disk is supported on spring-mounted bearings with vibration pickup and strobotac, as shown in Fig. Running at 800 rpm cew, the original disk indicates a maximum amplitude of 2.90 mm at 45° cw from a reference mark on the disk o Next a trial weight of 3.0 oz is added at the rim in a position 91°cw from the reference mark and run at the same speed. If now the new unbalance is 6.0 mm at 80° cw from the reference mark, determine the position and weight necessary to balance the original disk o. 45 35 30 Ref 60
Transcribed Image Text:Question 4 A thin disk is supported on spring-mounted bearings with vibration pickup and strobotac, as shown in Fig. Running at 800 rpm cew, the original disk indicates a maximum amplitude of 2.90 mm at 45° cw from a reference mark on the disk o Next a trial weight of 3.0 oz is added at the rim in a position 91°cw from the reference mark and run at the same speed. If now the new unbalance is 6.0 mm at 80° cw from the reference mark, determine the position and weight necessary to balance the original disk o. 45 35 30 Ref 60
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