Rotating machinery support design with the aim of reducing the force transmitted to the foundation has significant importance regarding the various applications of these machineries. In this paper presents a rapid approximate method for calculating the optimum support flexibility and damping of flexible rotors to minimize force transmissibility in the vicinity of the rotor first critical speed....

Experimental procedure Density of a substance is a physical quantity which is defined as mass of unit volume of the substance. There are many methods for the determination of density of substances. To find out the density we need a physical balance for the measurement of mass and a measuring cylinder for volume. But there are other many methods where the density of substances is determined with...

In colloidal probe atomic force microscopy (AFM) surface forces cannot be measured without an accurate determination of the cantilever spring constant. The effective spring constant k depends upon the cantilever geometry and therefore should be measured in situ; additionally, k may be coupled to other measurement parameters. For example, colloidal probe AFM is frequently used to measure the sli...