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Rotation speed-based cylinder pressure curve reconstruction method

A speed and cylinder pressure technology, applied in the field of cylinder pressure curve reconstruction based on speed, can solve the problems of inability to directly obtain cylinder data, difficult to measure, and high temperature, achieving less post-processing calculations and better cylinder pressure reconstruction results , the effect of less data

Inactive Publication Date: 2017-08-18
NAVAL UNIV OF ENG PLA
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Problems solved by technology

Due to the large air pressure, high temperature, and rapid changes in the cylinder during operation, it is not easy to measure, especially when measuring some non-detachable or in-use cylinders, it is impossible to directly obtain the data inside the cylinder

Method used

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  • Rotation speed-based cylinder pressure curve reconstruction method
  • Rotation speed-based cylinder pressure curve reconstruction method
  • Rotation speed-based cylinder pressure curve reconstruction method

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Embodiment Construction

[0036] The invention will be described in detail below in conjunction with specific embodiments.

[0037] The speed-based cylinder pressure curve reconstruction method created by the present invention, its implementation process is as follows figure 1 As shown, its specific implementation steps include:

[0038] 1. Signal collection method;

[0039] The basic data of the cylinder pressure curve reconstruction method based on the rotation speed of the present invention include the rotation speed pulse signal, the angular displacement pulse signal, and the top dead center pulse signal of the cylinder.

[0040] In practical applications, since the number of teeth and the diameter of each gear in the cylinder have been determined, the rotational speed u can be converted to each other, so the calculation can be done by measuring the rotational speed u of any gear in the cylinder. For the convenience of operation and observation, it is preferred to measure the cylinder The rotatio...

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Abstract

The present invention belongs to the cylinder data analyzing and processing field, in particular relates to a rotation speed-based cylinder pressure curve reconstruction method. The rotation speed-based cylinder pressure curve reconstruction method is characterized by calculating and reconstructing the cylinder pressure data rapidly by the data that can be measured and obtained externally and rapidly, such as the instantaneous rotation speed, the angular displacement, a top dead center signal, etc., and by utilizing a private function and a comparator, is little in data needing to be measured, simple in needed devices, high in acquisition efficiency, little in post processing calculation amount and good in cylinder pressure reconstruction effect, and has low requirements for the performances of a calculation system.

Description

technical field [0001] The invention belongs to the field of cylinder data analysis and processing, and in particular relates to a cylinder pressure curve reconstruction method based on rotational speed. Background technique [0002] Cylinders are widely used in various production operations and mechanical equipment. Once they fail, it may cause the equipment to stop, affect the normal production work order and even cause safety accidents. Therefore, in order to ensure the safe and stable operation of the cylinder, it is necessary to design the cylinder in the early stage and use it later. During the process, the data of various indicators of the cylinder are analyzed and judged, so that the cylinder can obtain and maintain the best use state. Among them, the cylinder pressure reconstruction is an important data that reflects the change of the cylinder pressure and represents the actual working state, and is often used in the production inspection and design optimization of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06F2218/02G06F2218/22G06F2218/12
Inventor 杨昆范焕羽
Owner NAVAL UNIV OF ENG PLA
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