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A method and system for determining the installation position of a pipe clamp

A technology of installation location and determination method, which is applied in the direction of pipeline brackets, transmission parts, pipes/pipe joints/fittings, etc., which can solve the complexity of aircraft hydraulic piping systems, fail to improve the dynamic quality of the system, and weaken the reliability of the piping system, etc. problem, to achieve the effect of improving dynamic quality, good practicability, convenience, speed and accuracy

Active Publication Date: 2019-06-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the aircraft hydraulic piping system is intricate, and the layout of the clamp position is mostly compared and transplanted from the prototype. During construction, certain adjustments are made according to the actual lofting. The final installation position of the clamp greatly depends on the experience of the designer.
Especially for some small pipeline systems, the support form, parameters, position and quantity of the clamps are mostly solved manually on site, resulting in a large randomness in the actual layout of the clamps
Sometimes, instead of improving the dynamic quality of the system, local stress concentration may even become the source of failure of the pipeline structure, seriously weakening the reliability of the pipeline system

Method used

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  • A method and system for determining the installation position of a pipe clamp
  • A method and system for determining the installation position of a pipe clamp
  • A method and system for determining the installation position of a pipe clamp

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Embodiment 1

[0049] figure 1 It is a flow chart of the method for determining the installation position of the pipe clamp provided by Embodiment 1 of the present invention. Such as figure 1As shown, a method for determining the installation position of a pipe clamp, the determination method includes:

[0050] Step 101: Obtain geometric parameters, material parameters, service environment parameters and fluid parameters of fluid in the target pipeline, wherein the service environment parameters include vibration acceleration or stress of the target pipeline. The geometric parameters of the target pipeline include: inner diameter, outer diameter, length and radian of the target pipeline.

[0051] Step 102: Determine clamp connection parameters and optional installation positions of each clamp according to service environment parameters of the target pipeline, where the clamp connection parameters include clamp stiffness and clamp damping. Specifically, the hoop stiffness includes the hoop...

Embodiment 2

[0080] Figure 8 A structural block diagram of a system for determining the installation position of a pipe clamp provided by Embodiment 2 of the present invention. Figure 9 Work flow diagram of the system for determining the installation position of pipe clamps. Such as Figure 8 and Figure 9 As shown, a system for determining the installation position of pipe clamps, the system for determining includes:

[0081] A parameter acquisition module 201, configured to acquire geometric parameters, material parameters, service environment parameters and fluid parameters of the fluid in the target pipeline, wherein the service environment parameters include vibration acceleration or stress of the target pipeline;

[0082] Connection parameter and optional position determination module 202, configured to determine clamp connection parameters and optional installation positions of each clamp according to the service environment parameters of the target pipeline, the clamp connecti...

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Abstract

The invention discloses a method and system for determining the pipeline clamp mounting position. The determining method comprises the steps of obtaining geometrical parameters, material parameters, service environment parameters and fluid parameters of fluid in the target pipeline; according to the service environment parameters of the target pipeline, determining clamp connection parameters andselectable mounting positions of clamps; according to the geometrical parameters, the material parameters, the fluid parameters, the clamp connection parameters and the selectable mounting positions,the fluid-solid coupling dynamics model of the target pipeline is built; according to the fluid-solid coupling dynamics model, determining the selectable position fundamental frequency and the first order mode vibration mode of the target pipeline corresponding to the selectable mounting position are determined; according to the fundamental frequency difference and the first order mode vibrationmode, determining the optimal mounting position of the clamp, wherein the fundamental frequency difference is the difference value of the selectable position fundamental frequency and the target fundamental frequency of the target pipeline. The inherent frequency of the pipeline can be effectively improved, dynamics quality of the system is improved, sympathetic vibration is effectively avoided, operation is easy, practicability is good, and the method and system are rapid, convenient and high in accuracy.

Description

technical field [0001] The invention relates to the field of pipeline construction, in particular to a method and system for determining the installation position of a pipeline clamp. Background technique [0002] Aircraft hydraulic pipelines are mainly used for the transportation of fuel, lubricating oil, hydraulic oil and air, and are an important part of the aircraft system. The safety and reliability of the pipeline system is directly related to the safety of aircraft operation, and the failure of the pipeline system is mainly caused by vibration. When the pipeline system has been shaped, its direction and structure can no longer be changed, and the rigidity of the pipeline system can only be increased by installing clamps at the appropriate positions of the pipeline, thereby increasing its natural frequency, so that the natural frequency avoids its excitation frequency and thus avoid resonance. [0003] However, the hydraulic piping system of the aircraft is intricate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L3/00F16H57/00G06F17/50
CPCF16H57/00F16L3/00G06F30/23G06F2113/14
Inventor 陈果於为刚黄佑彭飞良邹涛
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS