Root rotation

Williams, J.G., Root rotation and plastic work effects in the peel test. J. Adhes., 41, 225-239 (1993). 

The main component of the holder is the specially bended tube which allows the introduction of the whale probe" through a 10 mm hole in the housing ring of the engine. Then the whale probe" is easily positioned to the foot of one of the blades. After the inspection of the first blade root, the engine is rotated several degrees to allow the inspection of the next blade. 

The exposure interval for the bed, T, is inversely proportional to the kiln rotation rate. Hence, equation 21 shows that the time constant for desorption is directly proportional to the bed depth and inversely proportional to the square root of the kiln rotation rate. However, the overriding factor affecting is the isotherm constant iC which in general decreases exponentially with increasing temperature as in equation 4. 

Figure 6-41. Rotating iobe vacuum blowers showing lobe rotation as gas moves through the unit. By permission, Roots Division, Dresser Industries, Inc.

Such results generally hold for the differential equations of van der Pol, Li6nard, and some others of the same type. In view of the constant rotation concentric cycles corresponding to the real positive roots pls p2, of (p) = 0. 

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