CN111120162A - Method for determining maximum support distance of fuel pipeline of aircraft engine - Google Patents
Method for determining maximum support distance of fuel pipeline of aircraft engine Download PDFInfo
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- CN111120162A CN111120162A CN201911374599.4A CN201911374599A CN111120162A CN 111120162 A CN111120162 A CN 111120162A CN 201911374599 A CN201911374599 A CN 201911374599A CN 111120162 A CN111120162 A CN 111120162A
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- distance
- pipe
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- fuel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention provides a method for determining the maximum supporting distance of a fuel pipeline of an aircraft engine, which comprises the following steps: (1) determining the diameter and length of an external fuel pipeline of the engine and the shape trend of the pipeline; (2) when the fixed support of the pipe is arranged, the maximum distance between the fixed hoops is calculated according to the maximum distance calculation formula between the pipe hoops; (3) when selecting the distance of the clamps, the position of the clamp bracket is arranged according to the orientation and the shape of the oil pipe, but the distance between the clamps is not more than the calculated maximum distance (Lmax). The method for determining the maximum supporting distance of the fuel pipeline of the aircraft engine gives the reasonable supporting distance of the fuel pipe, can obtain the reasonable value of the maximum supporting distance of the fuel pipe, enables the supporting structure of the fuel pipe to be reasonable, reduces or avoids repeated adjustment of the support of the fuel pipe on the engine, improves the structural reliability of the pipeline, and greatly improves the design quality.
Description
Technical Field
The invention relates to the technical field of aircraft engines, in particular to a method for determining the maximum supporting distance of a fuel pipeline of an aircraft engine.
Background
The supporting distance of the external fuel pipeline of the aircraft engine influences the fixing firmness of the fuel guide pipe, and also influences the vibration frequency of the fuel pipe and the vibration stress of the fuel pipe. The improper support layout of the fuel pipe can cause the vibration frequency and the vibration stress of the fuel pipe to exceed the allowable range, so that the fuel pipe has cracks and fracture faults. The rupture of the fuel pipe causes a serious accident to the engine, so that the reliable support of the fuel pipe is very important. In order to improve the structural reliability of the pipeline, it is necessary to provide a reasonable distance for supporting the fuel pipe.
Disclosure of Invention
In view of this, the present invention aims to provide a method for determining a reasonable maximum support distance of a fuel pipeline of an aircraft engine, so as to improve the structural reliability of the pipeline and provide a reasonable support distance of the fuel pipeline.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method for determining the maximum supporting distance of an aircraft engine fuel pipeline comprises the following steps:
(1) determining the diameter and length of an external fuel pipeline of the engine and the shape trend of the pipeline;
(2) when arranging the fixed support of the pipe, the maximum distance between the fixed clamps is calculated according to the maximum distance calculation formula between the pipe clamps,
Lmax＝123+21d-0.2d2
wherein Lmax (mm) -the maximum distance between the clips,
d (mm) -catheter diameter;
(3) when selecting the distance of the clamps, the position of the clamp bracket is arranged according to the orientation and the shape of the oil pipe, but the distance between the clamps is not more than the calculated maximum distance (Lmax).
Compared with the prior art, the method for determining the maximum supporting distance of the fuel pipeline of the aircraft engine has the following advantages:
the method for determining the maximum supporting distance of the fuel pipeline of the aircraft engine gives the reasonable supporting distance of the fuel pipe, can obtain the reasonable value of the maximum supporting distance of the fuel pipe, enables the supporting structure of the fuel pipe to be reasonable, reduces or avoids repeated adjustment of the support of the fuel pipe on the engine, improves the structural reliability of the pipeline, and greatly improves the design quality.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the distance between fuel pipe clamps according to the present invention;
description of reference numerals:
1-fuel pipe, 2-clamp and 3-engine case.
Detailed Description
A method for determining the maximum supporting distance of an aircraft engine fuel pipeline comprises the following steps:
(1) determining the diameter and length of an external fuel pipeline of the engine and the shape trend of the pipeline;
(2) when arranging the fixed support of the pipe, the maximum distance between the fixed clamps is calculated according to the maximum distance calculation formula between the pipe clamps,
Lmax＝123+21d-0.2d2
wherein Lmax (mm) -the maximum distance between the clips,
d (mm) -catheter diameter;
(3) when selecting the distance of the clamps, the position of the clamp bracket is arranged according to the orientation and the shape of the oil pipe, but the distance between the clamps is not more than the calculated maximum distance (Lmax).
The method for determining the maximum supporting distance of the fuel pipeline of the aircraft engine gives the reasonable supporting distance of the fuel pipe, can obtain the reasonable value of the maximum supporting distance of the fuel pipe, enables the supporting structure of the fuel pipe to be reasonable, reduces or avoids repeated adjustment of the support of the fuel pipe on the engine, improves the structural reliability of the pipeline, and greatly improves the design quality.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (1)
1. A method for determining the maximum supporting distance of an aircraft engine fuel pipeline is characterized by comprising the following steps: the method comprises the following steps:
(1) determining the diameter and length of an external fuel pipeline of the engine and the shape trend of the pipeline;
(2) when arranging the fixed support of the pipe, the maximum distance between the fixed clamps is calculated according to the maximum distance calculation formula between the pipe clamps,
Lmax＝123+21d-0.2d2
wherein Lmax (mm) -the maximum distance between the clips,
d (mm) -catheter diameter;
(3) when selecting the distance of the clamps, the position of the clamp bracket is arranged according to the orientation and the shape of the oil pipe, but the distance between the clamps is not more than the calculated maximum distance (Lmax).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911374599.4A CN111120162A (en) | 2019-12-27 | 2019-12-27 | Method for determining maximum support distance of fuel pipeline of aircraft engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911374599.4A CN111120162A (en) | 2019-12-27 | 2019-12-27 | Method for determining maximum support distance of fuel pipeline of aircraft engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111120162A true CN111120162A (en) | 2020-05-08 |
Family
ID=70503823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911374599.4A Pending CN111120162A (en) | 2019-12-27 | 2019-12-27 | Method for determining maximum support distance of fuel pipeline of aircraft engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120162A (en) |
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2019
- 2019-12-27 CN CN201911374599.4A patent/CN111120162A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 300300 room 2-103, Warner Jinghu garden, Dongli District, Tianjin Applicant after: Establishment of Aviation Co.,Ltd. Address before: 300300 room 2-103, Warner Jinghu garden, Dongli District, Tianjin Applicant before: CHENGLI AVIATION TECHNOLOGY Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200508 |