Balanceo Dinamico de Rotor motor electrico hp con ventiladores. To carry out the rolling, the rotor shaft is placed on rails as shown in Figure 1a. The disc is rotated and left to stop on its own. It is marked on the disc with chalk at . Introducción 2. ¿Qué es el desbalanceo? 3. Cantidad de desbalanceo 4. Tipos de balanceo 5. Clasificación de los desbalanceos 6. Equilibrado de rotores.
|Published (Last):||7 September 2006|
|PDF File Size:||5.6 Mb|
|ePub File Size:||13.4 Mb|
|Price:||Free* [*Free Regsitration Required]|
If you are a seller for this product, would you like to suggest updates through seller support? Table 4 shows estimated balance masses for each test case to compare with the expected value. Once the harmonics are known, it then calculates the influence coefficients and the balance masses.
Riley et al 2 analyzed these relations to establish limits for the electric harmonics as they correlate with vibrations, concluding that there is a monotone relationship between both variables. The Fourier spectrum of the signal is displayed and the mechanical unbalance is indirectly determined by filtering the associated harmonics.
Bienvenido a Vibratec
Neelam 7 presents an analysis of the electric current as the most popular for failure rtoores, not only electrical but also mechanical as well, showing effectiveness to determine abnormal operation of induction motors, including situations involving gear trains. It then calculates the harmonics R 01R 02R 03 related to the resultant unbalance. In order to obtain the balaneco phase angles, the algorithm uses the rotorew phase angles among vectors P 0L1P 0L2P 0L3 obtained by measurement.
Iteration is done until it finds the best approximation to the unbalance mass obtained previously in step 3. Camargo 9 presents results of single-plane rotor balancing using electric harmonics that relate to mechanical unbalance. In this case, the 4-pole induction motor runs at 60Hz.
Be the first to review this item Amazon Best Sellers Rank: These currents are produced by a deformation of the magnetic field in the motor air-gap, as a result of mechanical unbalance. The signal readings, which are scalar rtores that reflect residual complex values offset with magnitude and rotpres when there is no imbalance, produce a nonlinear behavior of the data with respect to the unbalanced forces. Would you like to tell us about a lower price? A residual current is considered as the remaining harmonics after subtracting the fundamental current circulating in a motor wiring.
In the end, one obtains a solution for the minimum sum of squares of the perturbations. Calidad del balanceo 9.
Amazon Drive Cloud storage from Amazon. As is well known in rotor balancing, vibration data is subject to random errors which make the first balancing exercise not precise enough in terms of fulfilling the vibration standards for the particular rotor in turn. There’s a problem loading this menu right now.
Several tests were conducted using an induction motor described in Table 1. Vol 2, Issue 1, Proposed balancing method From equations 3 and 4it gets: It initiates an iteration cycle for the unbalance angle, calculating then the unbalance mass according to equation Amazon Second Chance Pass it on, trade it in, give it a second life.
For diagnosis purposes, software ANOVA allows the subtraction of the contribution of a variable in the fault signature value, avoiding a bias produced by this variable. Explore the Home Gift Guide. Read more Read less.
However, the residual condition is also obtained by motor eccentricity, asymmetry of coil structure of stator and rotor, that is, owing to static and dynamic irregularities in the air-gap 258. Dorrel et al 1 studied how the magnitude of electric harmonics relates to the mechanical harmonics in motors focusing on eccentricity. Cantidad de desbalanceo 4. Riley et al 3 finds, based on theoretical as well as on experimental bases, that there is a linear relationship between specific electric harmonics and mechanical vibration.
BALANCEAMIENTO DE ROTORES by Carlos Cayo Mamani on Prezi
Bellini 8 presents a paper review of the previous ten years showing a baalanceo of references and research activity classified in four topics: Recorded data using the virtual instrument described above are shown in Tables 2 and 3.
Grados de calidad 9. Share your thoughts with other customers. Single plane balancing; induction motors; current harmonics; Hall effect.
ComiXology Thousands of Digital Comics. Amazon Inspire Digital Educational Resources. Finley et al 5 makes a complete analysis of the relation among electric harmonics and mechanical problems including misalignment, unbalance, bearings failure, fractured rotor bars, etc.
This is performed in a similar way as the previous step. Alexa Actionable Analytics for the Web.
There is a unique vector combination that fulfills this condition, and thus the absolute phase angles are determined. Figure 1 shows the frequency spectrum with a harmonic component that is related to rotor imbalance as is obtained from the filtering process, as established by Riley 2. This requires an algorithm to determine, based on readings of residual values for the balanced condition, and the imbalanced rotor, the complex values that directly relate to the imbalance.