BALANCEO DINAMICO DE ROTORES PDF
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.
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Based on previous works in the literature, where a relationship between the mechanical unbalance and the electric-current harmonics is reported, this article develops a more efficient method of balancing that takes into account the r.
Linand Thomas G. Table 4 shows estimated balance masses for each test case to compare with the expected value. Get fast, free shipping with Amazon Prime. Las lecturas del espectro, que son cantidades escalares, reflejan un valor residual complejo magnitud y fase cuando no hay desbalance, lo cual hace que el comportamiento sea no-lineal con respecto a las fuerzas desequilibradas. When direct measurements are included, vectors may look like shown in Figure 4 and their equations are:.
Abstract An efficient method for single-plane rotor balancing which requires some components of the electric signal spectrum from each phase of the electric motor to which it is directly coupled is developed. Amazon Giveaway allows you to run promotional giveaways in order to create buzz, reward your audience, and attract new followers and customers.
Shopbop Designer Fashion Brands. Figures 1 and 2 show some of the displays. They use additive models to separate the effects of different factors on the amplitude of the fault signatures. Additionally, Riley et al 4 presents an analysis including the effect of externally induced vibrations.
References  Dorrell D. Get to Know Us. The Fourier spectrum of the signal is displayed and the mechanical unbalance is indirectly determined by filtering the associated harmonics.
The alternative approach presented in this paper may offer an advantage in recording and monitoring of the rotor imbalance. The other difficulty is nonlinearity behavior of data due to an offset.
Bellini dibamico presents a paper review of the previous ten years showing a list of references and research activity classified in four topics: The test cases show the first balancing exercise where the estimated balance masses have relatively small errors similar to the ones obtained in traditional practice. These vectors are measured in magnitude, and their measured phase angles are relative. Amazon Renewed Refurbished products with a warranty.
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Iteration is done until it finds the best approximation to the unbalance mass obtained previously in step 3. Learn more about Amazon Giveaway. Camargo 9 presents results of single-plane rotor balancing using electric harmonics rktores relate to mechanical unbalance. This is performed in a similar way as the previous step. In the end, one obtains a solution for the minimum sum of squares of the perturbations.
It has been reported the phase relation among high order harmonics near 90Hz which tend toz ero with some variations that depends on the degree of rotor unbalance. Dorrel et al 1 studied how the magnitude of electric harmonics relates to the mechanical harmonics in motors focusing on eccentricity.
In the traditional method of influence coefficients, formulas 7 and 8 provide a balance mass assuming the magnitude and phase are known. 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.
However, when unbalance ispresent rotres relative phase angles change due to the vector sum of the offset and the unbalance effect. Kral et al 6 proposes a technique to estimate unbalance using harmonics that are present in the electric power, showing positive results in assessing static and dynamic unbalance.
Similarly, equations 18 and 21 are worked out to satisfy themselves by perturbing the harmonics to finally obtain 24 and The measurement consists of a virtual instrument, a set of solid-state magnetic sensors and its signal conditioning.
Balanceo en un plano 6. Given the unbalance and resultant angles according to the iterationsand the trial mass, the magnitudes of the unbalance mass and balaneo resultant may be solved as follows:. It then calculates the harmonics R 01R 02R 03 related to the resultant unbalance.