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A new method of balancing composite rotors

The essence of the method lies in the fact that, abandoning the separate balancing of rotors included in a composite rotor to balance them together by means of pivot relative to each other.

When you first start (measuring) the resulting vector sum of principal vectors and principal moments of unbalances of the rotors and a system of corrective weights for each of the rotors in two planes of correction. In the second start by deploying one rotor relative to another, for example at 1800, we get a vector difference. Taking into account the system corrective masses for one of the rotors we have a double main double main vector and moment to the other of the rotor and, most importantly, with respect to the error-based.

By calculating, with the help of special software, the second to start get a system of corrective masses of four (with two-plane balancing of each rotor) or more goods (for multi-plane balancing two-plane balancing each rotors or more gruzovie.th main point for the other rotor.th.).

The advantage of this technique is to significantly reduce the complexity of technical process balancing, and most importantly, the rotor will be balanced about its true axis of rotation with an objective assessment of static and couple unbalance component of each of them. This is necessary when balancing flexible rotors.

The method was tested experimentally on two randomly selected two rotors of the HPC and HPT rotors two products RD-1700.

In addition, there was obtained an additional effect to the modularity of the rotors, i.e. full interchangeability in imbalance. It is of great importance from the point of view of maintainability of the product.

This technique can be applied for balancing current and future products.