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RISThe Importance of the Heat Capacity of Lubricants With Nanoparticles in the Static Behavior of Journal Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Nanoparticle additives increase the viscosity of lubricants, thus being an interesting solution for improving the load carrying capacity of hydrodynamic bearings. But, nanoparticles also change the thermal properties of ...
Comparison Between a Meshless Method and the Finite Difference Method for Solving the Reynolds Equation in Finite Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Meshless methods are an alternative procedure for solving partial differential equations in opposition to the numerical methods that require structured meshes. In this work, the meshless method with radial basis functions ...
Optimization of Band Gaps in Rotors With Longitudinal Periodicity and Quasi-Periodicity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Structures with inertia periodicity present the phenomenon of band gap formation, i.e., the appearance of regions in the frequency spectrum with a higher modal spacing and lower vibration response. Rotating machines can ...
The Band Gap Formation in Rotors With Longitudinal Periodicity and Quasi-Periodicity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modal spacing (band gaps) in the frequency spectrum of rotating machines can be imposed by geometric periodicity. By designing the rotor with a geometry that repeats periodically, we can impose to the vibration response ...
Experimental Evidence of the Band Gap Formation in Rotors With Longitudinal Periodicity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The longitudinal periodicity of the rotating elements in a rotating machine can impose band gaps (modal spacing) on the frequency spectrum of the system. These band gaps are characterized by a large distance between two ...
The Udwadia–Kalaba Trajectory Control Applied to a Cantilever Beam—Experimental Results
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Udwadia–Kalaba methodology is a possible way of explicitly obtaining the equations of motion of constrained systems. From these equations of motion, one can estimate the necessary forces in the constraint to keep the ...
Lateral Vibration Attenuation of Shafts Supported by Tilting Pad Journal Bearing With Embedded Electromagnetic Actuators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Hydrodynamic tiltingpad bearings with electromagnetic actuators are designed to take advantage of the loadcarrying capacity of the hydrodynamic bearing together with the actuation capacity of the electromagnets. Hence, ...
Erratum: “Lateral Vibration Attenuation of Shafts Supported by Tilting Pad Journal Bearing With Embedded Electromagnetic Actuators†[ASME Journal of Engineering for Gas Turbines and Power, 2014, 136(4), p. 042503 DOI: 10.1115/1.4026038]
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Reference [13] should appear as follows:
Erratum: “The Band Gap Formation in Rotors With Longitudinal Periodicity and Quasi-Periodicity” [ASME J. Eng. Gas Turbines Power, 2022, 144(5), p. 051003; DOI: 10.1115/1.4053193]
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Equation (10) gives ∑j=1nf(xj)≈1Δx∫0Lf(x) dxwhere f(xj)=mjρALϕi(xj)ϕk(xj)Considering that all disks have the same mass mD, then f(xj)=mDρALϕi(xj)ϕk(xj)Hence, from Eq. (10) (11)∑j=1NDmDρALϕi(xj)ϕk(xj)≈1Δx∫0LmDρALϕi(x)ϕk(x ...
A New Method for Fault Detection of Rotating Machines in Motion Control Applications Using PROFIdrive Information and Support Vector Machine Classifier
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Electric motors are widely used in the industry. Several studies have proposed methods to detect anomalies in their operation, but always using sensors dedicated to this purpose. In this sense, this work aims to fill gaps ...