Noise strip analysis method for impeller in water jet propulsion device
A water-jet propulsion and analysis method technology, applied in geometric CAD, computer-aided design, design optimization/simulation, etc., can solve problems that are in its infancy and have not been reported, and achieve short cycle, strong operability, and calculation convenient effect
Active Publication Date: 2020-05-19
708TH RES INST OF CSSC
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Problems solved by technology
Especially in the past ten years, with the development of the application of water jet propulsion technology, the noise level of water jet propulsion pumps and its forecasting technology have developed rapidly, and major foreign water jet propulsion companies have made breakthroughs in related technologies. Seen in the reports, but domestic related water jet propulsion noise prediction and research is in its infancy
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[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0038] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0040] A noise strip analysis method of an impeller in a water jet propulsion device, applied to the impeller 1 ...
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The invention mainly relates to the field of ship propulsion, and concretely relates to a noise strip analysis method for an impeller in a water jet propulsion device. The method comprises the following steps: A1, a processing unit obtains a noise intensity distribution result of an impeller according to processing of a broadband noise model; A2, the impeller is divided into a plurality of impeller strips, and a strip noise intensity distribution result corresponding to each impeller strip is obtained through processing of the processing unit; A3, the processing unit respectively processes toobtain strip noise power corresponding to each impeller strip and a power ratio of each strip noise power; and A4, the processing unit respectively includes each impeller strip, the strip noise powerand the power proportion in the impeller noise data, and outputs the impeller noise data as the noise distribution result of the impeller. The method has the following advantages: the main noise source in the water jet propulsion device is determined, support is provided for designing and optimizing the low-noise water jet propulsion device, and the method has the characteristics of convenience incalculation, short period, high operability and the like.
Description
technical field [0001] The invention mainly relates to the field of ship propulsion, in particular to a noise strip analysis method of an impeller in a water jet propulsion device. Background technique [0002] Noise analysis of water jet propulsion pump is the basis for optimizing the acoustic performance of water jet propulsion pump, accurately predicting the radiation noise characteristics of ship water jet propulsion, and improving the level of low noise water jet propulsion technology. It is the only way for water jet propulsion to low noise design . Especially in the past ten years, with the development of the application of water jet propulsion technology, the noise level of water jet propulsion pumps and its forecasting technology have developed rapidly, and major foreign water jet propulsion companies have made breakthroughs in related technologies. It has been reported, but domestic related water jet propulsion noise prediction and research are in their infancy. ...
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Login to View More IPC IPC(8): G06F30/20G06F30/17G06F119/10
CPCY02T90/00
Inventor 李宁蔡佑林严鹏苏威万初瑞张岩王宗龙王路逸
Owner 708TH RES INST OF CSSC