A Design Method of Pneumatic Separation Velocity

Abstract

The invention discloses a design method for pneumatic separation speed. The design method comprises the following steps of S1, determining the initial state of a system; S2, selecting a time step delta t and determining the gas state in a pneumatic element at t plus delta t time according to the gas state in the pneumatic element at the initialization time t and the gas quality inputted within the delta t time; S3, calculating the movement distance of an effective load for an impelling force and acceleration of the pneumatic element according to gas pressure in the pneumatic element at the t plus delta t time; S4, judging whether the movement distance of the pneumatic element at the t plus delta t time is equal to the effective movement distance of the pneumatic element or not, if so, determining the effective load speed at the t plus delta t time as the final separation speed of the system, and otherwise, repeating the steps of S3 to S4, and carrying out iterative computation according to the time step delta t until the time meeting the conditions is found; S5, adjusting designable parameters in the initial state of the system and repeating the steps of S2 to S4 until the final design speed meets the requirement. According to the design method disclosed by the invention, the convenience in calculation and accurate result are obtained; the technical problems of repeated multiple tests and high economic time cost in the prior art can be solved.

Description

technical field [0001] The invention belongs to the technical field of pneumatic ejection separation analysis methods, and more specifically relates to a design method of pneumatic separation velocity. Background technique [0002] Pneumatic separation is to use high-pressure gas cylinders, gas generators and other gas sources to inflate pneumatic components such as cylinders and air bags, so that a pressure difference is formed between the gas in the pneumatic components and the external environment, and then push the relative motion of the object to achieve the purpose of separation. Pneumatic separation is widely used in automobiles, aerospace, navigation, toys and other fields. [0003] In the field of aerospace, the separation speed control requirements of the structure are very strict. In the system design of pneumatic separation, the precise control of separation speed is an important design content of pneumatic separation, and the pneumatic separation speed is relate...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a design method of pneumatic separation speed, which is convenient to calculate and the result is accurate, and can solve the technical problems of repeated tests and high economic time and cost in the prior art

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