Parameter identification of a discrete-mass mathematical model of crankshaft oscillations

Determination of Geometrical Deviations of Large-Size Crankshafts with Limited Detection Possibilities Resulting from the Assumed Measuring Conditions

“…The value of the amplitude of the first harmonic component of the eccentricity profile with the eccentricity value e 10 = 10 µm, determined for this value of the quotient, is C 1(10)α = 8.694 µm. The eccentricity value for the analysed profile, determined based on Equation (14), is therefore e = 50 µm.…”

“…This system consists of two double telecentric lenses, two high-resolution cameras, and two telecentric back light sources. On the other hand, Pavlenko et al [14] presented a bench to determine the contour errors in the axial direction (such as obliquity, crowning and saddle shape) in the case of an agricultural tractor crankshaft. In a subsequent paper by Wang et al [15], a method of measuring and evaluating cylindricity error based on a step acceleration algorithm using a machine adapted to small crankshafts is described.…”

“…In a subsequent paper by Wang et al [15], a method of measuring and evaluating cylindricity error based on a step acceleration algorithm using a machine adapted to small crankshafts is described. The methods described in this paragraph refer to crankshafts fixed and unmoved on external journals [9] or fixed in tusks on a measuring machine [14,15]. They therefore do not take into account the case of a crankshaft seated on supports, which is the subject of our paper.…”