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Stress test method for rotating conditions

A stress test and stress technology, applied in the direction of measuring force, measuring device, instrument, etc., can solve the problems of easy winding of wiring, lack of data acquisition, and inability to conduct experiments, and achieve the effect of small size and light weight

Active Publication Date: 2019-03-08
HUATIAN ENG & TECH CORP MCC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The processing equipment needs to work together with the working parts of industrial and agricultural equipment, and it does not have the ability to collect data. It needs to be connected to the stress sheet to collect the force through the stress sheet, so wiring is required. In the case of rotation, The wiring is easily entangled and the experiment cannot be carried out

Method used

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  • Stress test method for rotating conditions
  • Stress test method for rotating conditions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1-2 As shown, this embodiment provides a stress test method for rotation, taking an inverted umbrella aerator as an example, the test process is as follows:

[0034] 1) First obtain the rotation speed of the inverted umbrella of the inverted umbrella aerator, and determine that its rotation speed is low-speed rotation,

[0035] 2) Since its rotation speed is low-speed rotation, a data transmission device with a slightly larger volume is selected to facilitate the real-time transmission of the stress state of the inverted umbrella.

[0036] 3) Place the stress sheet on the inverted umbrella sheet 1 of the aerator, and let the stress sheet rotate with the inverted umbrella. The data transmission equipment and the power supply are installed on the inverted umbrella base 2, so that the power supply and the data transmission equipment rotate together with the inverted umbrella while minimizing the rotation range.

[0037] 4) The wires of the stress gauge ar...

Embodiment 2

[0045] On the basis of the above-mentioned embodiments, the steps of installing the stress plate, power supply and data processing device are as follows:

[0046] Paste the stress sheet on the position to be measured of the workpiece to be measured,

[0047] Fix the power supply and data processing device in the non-working area of ​​the workpiece to be tested,

[0048] Arrange the power line and data line on the workpiece to be tested, and electrically connect the power supply, data processing device and stress gauge through the power line and data line.

[0049] After the data transmission device and / or the data storage device are installed, a protective shell is installed outside the data transmission device and / or the data storage device, and the protective shell is fixedly connected to the workpiece to be measured .

[0050] Since the stress sheet needs to measure the stress change in the working process of the workpiece, it is necessary to paste the stress sheet on the...

Embodiment 3

[0053] On the basis of the above-mentioned embodiments, the adjustment of the relational model is also included:

[0054] Execute steps 1)-5) to obtain several sets of data,

[0055] Compare the data with the relational model respectively. If the error between the relational model and the data is not greater than the error threshold, maintain the existing model state. If the error between the relational model and the data is greater than the error threshold, perform the following steps:

[0056] In step 4) evenly select some rotation speed values ​​between every adjacent two rotation speed values,

[0057] In step 5) evenly select some inclination angle values ​​between every adjacent two inclination angles,

[0058] Execute the selected rotation speed value and tilt angle value in steps 1)-5),

[0059] According to the data obtained in steps 1)-5), the relationship model between the rotation speed and the stress at each angle is corrected.

[0060]Due to the problem of dat...

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Abstract

The invention discloses a method for measuring stress in the case of rotation, which comprises the following steps: 1) obtaining the rotation speed of a workpiece to be measured in a working state; 2) selecting a data processing device according to the rotation speed to be measured, and combining the stress gauge, The power supply and data processing device are installed on the workpiece to be tested. If the working state of the workpiece to be measured is a rotation state exceeding 30rpm, select the storage device as the data processing device. If the working state of the workpiece to be measured is a rotation state not exceeding 30rpm , select the communication device as the data processing device; 3) start the data processing device; 4) control the workpiece to rotate with several rotation speed values, and obtain the relationship between the rotation speed and the stress of the workpiece at the current angle; 4) is performed every time an angle is adjusted; 6) Apply the machine learning tool Tensorflow to train the data collected in 4)‑5) to establish a relationship model between velocity and stress at each angle. The invention can test the stress condition under the rotating condition.

Description

technical field [0001] The invention relates to a stress testing method for rotating conditions. Background technique [0002] During the actual operation of industrial and agricultural equipment, factors such as the working angle of the operating parts and the contact area with the external force will affect the force on the operating parts, thereby affecting the failure rate of the equipment. Therefore, in the process of research and development of industrial and agricultural equipment, the stress detection of operating parts under different conditions is an important link in the research and development of industrial and agricultural equipment. [0003] During the actual operation of industrial and agricultural equipment, most of the operating parts are in a rotating state, and at the same time they need to work in water or in the soil. In such a complex environment, it is difficult for the acquisition equipment to work with the operating components. [0004] The stress...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/00
CPCG01L1/00
Inventor 姜岚赵贤林王星星
Owner HUATIAN ENG & TECH CORP MCC
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