Low-noise optimization method suitable for geometric parameters of bionic vane pump

Abstract

The invention provides a low-noise optimization method suitable for geometric parameters of a bionic vane pump. The low-noise optimization method comprises the following steps: determining optimization variables as the pit diameter, the pit flow direction interval and the pit spanwise interval; determining an optimization target as a total sound pressure level; determining a value range of the optimization variable; determining a sample level number, taking the optimization variable as a factor, and making a uniform design table of a factor level; randomly determining a test sample according to the uniform design table; carrying out numerical simulation and acoustic calculation according to the test sample, and determining the pit arrangement position; establishing a sample database according to the uniform design table to obtain a prediction model; and performing optimization solution by using a particle swarm optimization algorithm based on the neural network prediction model, takingthe total sound pressure level value as a fitness value, and performing calculation to obtain a value of an optimization variable when the total sound pressure level is minimum. According to the method, reasonable optimization variables can be obtained, an appropriate value range determination method is provided, and application of a modern optimization algorithm in the bionic vane pump is achieved.

Description

technical field [0001] The invention relates to the field of bionic modeling optimization of vane pumps, in particular to a low-noise optimization method suitable for geometric parameters of bionic vane pumps. Background technique [0002] As a general machine, the main function of the pump is to realize the conversion of the mechanical energy of the prime mover to the energy of the conveying medium. After long-term development, there are many kinds of them, which are widely used in various fields of national economy such as drainage and irrigation, petrochemical industry, aerospace, fire safety, water conservancy engineering and so on. [0003] Although the commonly used design theory of pumps is relatively mature, there is still room for improving the performance of existing models through some special methods. The bionic method is a method with distinctive characteristics at present. It adds some bionic structures to the pump based on the theory of bionics. Although its...

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