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Method for measuring end face spatial displacement and angular variation of shafting engineering member on the basis of stay-supported displacement sensors

A displacement sensor and space displacement technology, applied in measuring devices, instruments, etc., can solve the problems of inability to measure the displacement and angular change of resistance strain gauges.

Active Publication Date: 2016-01-20
HARBIN ENG UNIV
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Problems solved by technology

However, the outer surface of these shafting engineering components is often attached with a protective layer or a thermal insulation layer, and it is impossible to measure the displacement and angle change using electrical resistance strain gauges or optical methods, which requires other methods to measure the change

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  • Method for measuring end face spatial displacement and angular variation of shafting engineering member on the basis of stay-supported displacement sensors
  • Method for measuring end face spatial displacement and angular variation of shafting engineering member on the basis of stay-supported displacement sensors
  • Method for measuring end face spatial displacement and angular variation of shafting engineering member on the basis of stay-supported displacement sensors

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Embodiment Construction

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] The purpose of the invention is a method for measuring the spatial displacement and angular change of the end face of a shaft engineering component based on a wire-pull displacement sensor.

[0034] The principle of the present invention: First, install three pull-wire displacement sensors at three points where the distance can be measured on both ends of the measurable shaft system, and install three pull-wire displacement sensors at three points where the relative distance can be measured on the end face of the measured shaft system . The placement of these six sensors can be arbitrarily selected, and two flanges can be designed to be installed on the end face of the shaft system. Take the sensor positions of the measurable end face as A, B, and C, and the sensor positions of the measured end face as D, E, and F. Then, interconnect the three pull-wir...

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Abstract

The invention discloses a method for measuring the end face spatial displacement and the angular variation of a shafting engineering member on the basis of stay-supported displacement sensors. The method comprises a step 1 of installing a stay-supported displacement sensor A, a stay-supported displacement sensor B, and a stay-supported displacement sensor C on three points with measurable distance, wherein the three points are arbitrarily selected from both end faces of a measurable shafting, and installing a stay-supported displacement sensor D, a stay-supported displacement sensor E, and a stay-supported displacement sensor F on three points with measurable relative distance, wherein the three points are selected from the end faces of the measurable shafting; a step 2 of measuring three displacement values on the measurable end faces and measuring nine measurable relative displacement values on the two end faces; a step 3 of after displacement generates, repeating the step 2 and computing spatial displacement and angular variation. The method may measure the end face spatial displacement and the angular variation of the shafting engineering member as required, is low in measurement cost, flexible and convenient to use, and good in applicability.

Description

technical field [0001] The invention belongs to the field of shafting engineering component measurement, in particular to a method for measuring the spatial displacement and angle change of an end face of a shafting engineering component based on a wire-pull displacement sensor. Background technique [0002] Ship shafting is an important part of the power plant in the ship, and the installation quality will directly affect the durability and reliability of the main engine and shafting operation. In recent years, ship fires, explosions and engine room flooding accidents have often occurred due to improper design, arrangement and installation of ship shafting, low production technology, relatively backward production equipment, faulty operation and maintenance, and backward measurement tools and detection methods. Therefore, the installation process of shafting parts is very important in the shipbuilding process. In the design, arrangement and installation of the shafting, th...

Claims

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Application Information

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IPC IPC(8): G01B21/02G01B21/22
Inventor 曲嘉李东昌孙晓庆黄超陈森夏培秀
Owner HARBIN ENG UNIV
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