The cam and its design method for driving the voice coil of the high-pressure jet type acoustic wave rain-enhancing device

Abstract

The invention provides a cam for driving a voice coil of a high-pressure jet flow type sound wave rain enhancement device suitable for Tianghe river engineering and a design method of the cam. The camis in externally tangent contact with a rocker arm pin roller with the radius of r in the rocker arm system; wherein the center of the rocker arm pin roller moves in a rigidly connected rocker arm system to form a trajectory curve of the center of the rocker arm pin roller, and the method is characterized in that the inward expansion r of the trajectory curve of the center of the rocker arm pin roller is used as a molded line of the cam, and the cam is designed according to the molded line. According to the method for solving the cam profile, compared with a traditional method, the complex geometrical relationship is avoided, the solving method is unified, and the continuity and smoothness of the cam are improved due to the fact that the information of surrounding points is effectively utilized, so that the dynamic smoothness of the cam is enhanced. Besides, cam molded line design is carried out based on the method, the driven voice coil can obtain the excellent dynamic performance ofshort-time opening and short-time closing, and therefore high-pressure jet flow air generates strong discontinuity, strong sound waves are excited, and the sound wave rain enhancement effect is enhanced.

Description

technical field [0001] The present invention relates to a cam for driving a voice coil of a mechanical gas distribution system of a high-pressure jet type acoustic rain enhancement device and a design method thereof, in particular, to a cam for a voice coil system of an acoustic rain enhancement device for Tianhe Project, and It is based on the design method of curve inward processing. Background technique [0002] In the atmospheric water vapor flux field, there are not only local strip structures with higher flux intensity than the surrounding areas, but also a water vapor transport network structure with relatively high flux in the entire water vapor flux field, forming global and regional water vapor Transport main channel. The concept of Tianhe is beneficial to our understanding of the water vapor transport in the atmosphere, and is of great value to the study of the statistical characteristics of the long-term evolution of the Earth's water cycle and its interaction w...

AI Technical Summary

Problems solved by technology

However, the traditional cam design method needs to consider complex geometric relationships, and even needs to calculate according to the situation. The calculation process is complicated and the calculation accuracy is low, which is not conducive to parameter analysis and optimal design.

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