Q2/ The six cylinder of a single- acting, two-stroke cycle Diesel engine are pitched 1 m apart and the cranks are spaced at 60° intervals. The crank length is 300 mm and the ratio of connecting rod to crank is 4.5. The reciprocating mass per line is 1.35 Mg. The speed is 200 rev/min. Show with regard to primary and secondary balance, that the firing order 1-5-3-6-2-4 gives unbalance in primary moment only, and the order 1-4-5-2-3-6 gives secondary moment unbalance only. Compare the maximum values of these moments, evaluating with respect to the central plane of the engine.

Q2/ The six cylinder of a single- acting, two-stroke cycle Diesel engine are pitched 1 m apart and the cranks are spaced at 60° intervals. The crank length is 300 mm and the ratio of connecting rod to crank is 4.5. The reciprocating mass per line is 1.35 Mg. The speed is 200 rev/min. Show with regard to primary and secondary balance, that the firing order 1-5-3-6-2-4 gives unbalance in primary moment only, and the order 1-4-5-2-3-6 gives secondary moment unbalance only. Compare the maximum values of these moments, evaluating with respect to the central plane of the engine.

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

Q2/ The six cylinder of a single- acting, two-stroke cycle Diesel engine are pitched 1 m apart
300 mm and the ratio of
and the cranks are spaced at 60° intervals. The crank length
connecting rod to crank is 4.5. The reciprocating mass per line is 1.35 Mg. The speed is 200
rev/min.
Show with regard to primary and secondary balance, that the firing order 1-5-3-6-2-4 gives
unbalance in primary moment only, and the order 1-4-5-2-3-6 gives secondary moment
unbalance only. Compare the maximum values of these moments, evaluating with respect to
the central plane of the engine.

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