What is it about?
The paper provides information on the axial displacement calculation of the hydraulic pump non-rigid disk when their dimensional processing. The radial forces accounting actions method by means of equivalent axial force has been offered. The ability of the proposed replacement was proved with experimental studies. The boundary conditions for the calculations for various disc fixing schemes during processing are presented.
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Why is it important?
While manufacturing disks of axial power machines which are used in the chemical and oil industry, the central issue is the ability to forecast and control the errors originated in the course of their processing. The clearest and the most frequent example is the example of processing error resulting from the axial displacement of the processed disc body relative to the rim. As a result of considering the mechanism of this error the conclusion has been made that it is necessary to consider a set of factors that affect the disk body deflection. Some of these factors are the forces in the industrial process system. The study will help reduce the number of low-quality products.
Perspectives
The results of experimental studies and calculations have shown that this method of calculation can be used at the stage of process engineering to calculate the expected error from non-rigid disks processing of power machines. The error between the calculated and experimental data is 6 - 9 %.
Grigory Nesterenko
Omsk State Technical University
Read the Original
This page is a summary of: Accuracy Forecasting Disks Manufacturing of Axial Power Machines Considering the Forces at the Industrial Process System, Procedia Engineering, January 2016, Elsevier,
DOI: 10.1016/j.proeng.2016.07.630.
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Resources
Calculation-experimental Method of Determining the Propensity for Warping Non-rigid Disks of Hydraulic Machine
In work is considered a way of forecasting of axial displacement of a surface of a nonrigid disk during its processing due to modelling real conditions. Except for an opportunity of forecasting the given way allows to spend not destroying control of disks over propensity to deformations not only at its processing, but also during operation. Application of the presented way allows to lower quantity of technological losses by manufacture of nonrigid expensive disks of axial compressor
Flexure of Disk Blade in an Axial Gas Pump
The appearance of errors leading to fracture of compressor and pump parts is investigated. A method is proposed for nondestructive monitoring of the manufacturing precision of flexible parts with surfaces of revolution at the ends. This approach to minimizing component fractures does not decrease the productivity.
Machining Precision of Gas-Turbine Disks
In the manufacture of titanium-alloy compressor disks and impellers for gas-turbine aircraft engines, it is impossible to produce thin-walled workpieces of complex shape by casting. Therefore, workpieces of simple form are produced, which entails the removal of large margins by machining. That increases the number of manufacturing operations. Each operation introduces stress in the surface layer of the machine part and redistributes the stress created in preceding operations.
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