Zeeshan, Muhammad

To develop a technique to measure the phase angle between Crankpins / Muhammad Zeeshan - 49p. Soft Copy 30cm

This research paper introduces a new technique designed specifically for measuring the phase
angle between off-centred symmetrical circular objects, like crankshafts. The purpose is to
improve crankshaft inspection machines, enabling more accurate measurements for increasing
engine performance and reliability. Measuring the phase angle between the crankshaft pins has
been challenging task. The proposed method utilizes LabVIEW algorithms and advanced
sensors like LVDT and Optical Incremental encoder which are capable of detecting and
analysing the small variations in the phase angle between pins. This technique measures phase
angle between pins by the maximum lift phenomena and deviation in maximum lift of pins
results phase angle difference as incremental provides angular position.it enables
measurements with a high degree of precision, facilitating the reliable detection of any
irregularities or deviation in phase angle that may affect crankshaft performance and reliability.
Existing methods measures phase angle with high precisions but they have factors which may
lead to inaccuracies, one important parameter is crankshafts should be perfectly horizontal
otherwise it will affect accuracy. This proposed technique eliminates this variable and provide
easy, economical and accurate solution to OEM. The purpose of this teqnique is to utilize it in
crankshaft inspection machine that is designed for Tractor OEM. Crankshafts Manufacturing
drawings were provided by OEM on whiich all tolerances were mentioned. For phase angle
allowable error is 0.25o
from the true value So the sensors used for measuring phase angle
upto 0.03o
. Overall, this research paper presents a promising advancement in crankshaft
inspection by introducing a new technique for measuring the phase angle between off-centred
symmetrical circular objects as Crankshafts.


MS Mechanical Engineering

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