Unlock instant, AI-driven research and patent intelligence for your innovation.

Vibration reduction connecting pipe insertion loss test bench

A technology of test bench and insertion loss, which is applied in the field of vibration damping joint insertion loss test bench, and can solve the problems of large measurement errors and the like

Pending Publication Date: 2021-03-16
WUHAN SECOND SHIP DESIGN & RES INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an insertion loss test bench for a vibration damping tube, which is used to solve the technical problem that there is a large measurement error in the process of measuring the vibration damping tube by the insertion loss test bench in the prior art

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
  • Vibration reduction connecting pipe insertion loss test bench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a technique of solving the insertion loss experimental bench in the prior art in the prior art to measure the measurement error in the process of measurement of the damper pipe. Specifically, the test bench in the prior art cannot constrain the length of the damping tube to be tested. When multiple measurements, the difference in the length of the damping tube is different, and the boundary conditions are different, and under different pressures, damhard The length of the tube changes, which also causes differences in boundary conditions, which result in a large error in measurement results.

[0026] The damper insertion loss experimental gauge includes a first base 1, a second seat 2, a first hard tube 3, a second hard tube 4, a exciting flange 5, and a branch pipe.

[0027] Among them, a mounting position is provided on the first body 1 and the second seat 2, mounted on the platform or on the ground, specifically, the first base 1 and the second s...

Embodiment 2

[0036] In this embodiment, in the present embodiment, in the present embodiment, the tensile rod 8 is also detachable between the first base 1 and the second seat 2. Due to the large pressure of the laboratory, the tie rod 8 can make the fastener between the first base 1 and the second seat body 2, thereby avoiding the first base 1 and the second seat 2 due to a large pressure. Generate displacement, thereby increasing the use of stability of the damper insertion loss test bench provided by the damping pipe provided in the present embodiment.

[0037] As a specific embodiment of the present embodiment, both ends of the tie rod 8 in the present embodiment are studs, and there is a through hole, specifically, pulling rod 8 in the first base 1 and the second seat 2. For the round rod, there is an external thread on the even single outer wall of the tie rod 8 to form a stud. At the time of mounting, both ends of the tie rod 8 pass through the through holes on the first base 1 and the ...

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 relates to a vibration reduction connecting pipe insertion loss test bench, which belongs to the technical field of vibration noise control. The test bench comprises a first seat body and a second seat body which are fixedly arranged; a first hard pipe and a second hard pipe are coaxial, one end of the first hard pipe is fixedly connected to the first seat body, one end of the secondhard pipe is fixedly connected to the second seat body, and the first hard pipe and the second hard pipe are arranged oppositely; a shock excitation flange is arranged between the first hard pipe andthe second hard pipe, and the distance between the shock excitation flange and the other end of the first hard pipe and the distance between the shock excitation flange and the other end of the second hard pipe are the same; and branch pipes are arranged on the first hard pipe and / or the second hard pipe in a communicating manner. Through the structure, when the bench provided by the invention isused, the length consistency of the vibration reduction connecting pipes can be ensured, so that measurement errors caused by measurement boundary condition differences due to the length differencesof the vibration reduction connecting pipes are eliminated, and therefore, the vibration reduction connecting pipe insertion loss test bench can obtain more accurate vibration reduction connecting pipe insertion loss test data; and measurement results are more accurate.

Description

Technical field [0001] The present invention belongs to the field of vibration noise control, and in particular, to a damper tube insertion loss test bench. Background technique [0002] The damping takeover is used to reduce the vibration damping element between the device and the pipeline between the line and the line. The effect of the damping takeover is usually evaluated by insertion loss. The insertion loss is obtained by the contrast of the steel pipe and the damping pipe, and the boundary condition of the damping takeover should remain completely consistent. The traditional insertion loss test bench is mounted on an analog test system containing the damping pipe in the device and pipeline. However, existing insertion loss experimental beacloth has a large measurement error. Inventive content [0003] The present invention provides a damper insertion loss test gauge for solving the insertion loss experimental gathera for the prior art to measure the measurement error in t...

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 & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 张针粒刘海建谭海涛王强勇强磊商超郭寒贝熊波彭灿兵代成名戴睿婕
Owner WUHAN SECOND SHIP DESIGN & RES INST