A method for formulating a preventive maintenance plan for integral replacement parts

A preventive and planned technology, applied in the direction of instruments, etc., can solve the problems of poor control, uncontrollable, heavy workload and other problems of replaced nodes

Active Publication Date: 2022-04-15
NAVAL UNIV OF ENG PLA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual use, it is difficult to control the nodes that need to be replaced. The traditional method is to check a batch of parts one by one before use, and then replace the unqualified ones. The workload required by this method It is very large, requiring a lot of manpower and energy, and, sometimes when checking, a part of the component can still be used normally, but it will soon fail, and this is out of control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for formulating a preventive maintenance plan for integral replacement parts
  • A method for formulating a preventive maintenance plan for integral replacement parts
  • A method for formulating a preventive maintenance plan for integral replacement parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0053] The key part of a component is composed of four units (the life is respectively exponential, normal, Weibull and lognormal distribution), and the life distribution of each unit is shown in Table 1. There are 20 sets of this type of parts in the same batch in the warehouse. The time dyT1 of each unit in this batch of parts is the 4th, 2nd, 3rd, and 3rd year respectively, and the probability that the number n of intact parts is greater than M is recorded as P (n>M). It is required that P(n>M) over the years should not be lower than P1, otherwise maintenance work needs to be carried out in time. It is required that after one maintenance is completed, the time interval for the next maintenance shall not be less than T2 years. Known: T2=2, M=14, P1=0.8.

[0054] Under the known background conditions, according to the calculation method recorded in the claims, first calculate the life distribution law of each unit, see Table 1;

[0055] Table 1 Life distribution of each un...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for formulating a preventive maintenance plan for integral parts replacement, which can formulate a method for formulating a preventive maintenance plan based on the law of product life, without the need to grasp the physical mechanism of product failure and without physical indicators describing the degree of product aging Under certain circumstances, it is possible to selectively select whether the parts need to be replaced, and it is convenient and quick to draw a plan for parts replacement or maintenance, which greatly saves manpower and material resources.

Description

technical field [0001] The invention belongs to the field of component maintenance, and in particular relates to a method for formulating a preventive maintenance plan for integral parts replacement. Background technique [0002] In the actual working operation of the component, as the working time increases, each unit in the component will age or fail, and then need to be replaced. In actual use, it is difficult to control the nodes that need to be replaced. The traditional method is to check a batch of parts one by one before use, and then replace the unqualified ones. The workload required by this method It is very large and requires a lot of manpower and energy. Moreover, sometimes during inspection, a part of the component can still be used normally, but it will soon fail, and this cannot be controlled. For example, the thickness of a car tire is a parameter to measure whether the tire can be used. Under normal circumstances, it must be checked regularly, and then choo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): G06Q10/00
CPCG06Q10/20
Inventor王俊龙李婧阮旻智向世勇李华
OwnerNAVAL UNIV OF ENG PLA