Rotating-blade nonlinear dynamic response test device in granular medium and test method
A non-linear dynamic, rotating blade technology, applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc., can solve the problems of less research on dynamic behavior, achieve real-time online detection of dynamic signals, and simple structure , the effect of precise speed adjustment
Active Publication Date: 2018-10-09
NORTHEASTERN UNIV LIAONING
View PDF6 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, the research in this field mainly focuses on the motion behavior of granular materials, while the dynamic behavior of the internal elastic structure of granular media is less studied.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] Such as figure 1 , 2 As shown, the test device for the nonlinear dynamic response of the rotating blade in the granular medium includes a motor 1, a support 3, a rotary assembly and a stirring assembly. The support 3 includes a top plate and two side plates, and the top plate and the two side plates form a П structure, the motor 1 is fixedly connected to the top plate; the rotary assembly includes a rotary shaft 8, a rotary support bearing 9, a casing 10 and a slip ring 12, and the rotary shaft 8 and the inner ring of the rotary support bearing 9 are fastened coaxially Connection, the outer ring of the slewing support bearing 9 is firmly connected with the casing 10, the slip ring 12 includes a stator and a rotor, the stator is firmly connected with the casing 10 through the flange 11, and the rotor is coaxially connected with the rotary shaft 8; The stirring assembly includes a stirring drum 4, a rotating blade 6, a stirring shaft 5 and a strain gauge 7, the stirring ...
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
Login to View More Abstract
The invention relates to a rotating-blade nonlinear dynamic response test device in a granular medium and a test method. The technical scheme is characterized in that the device includes a motor, a support, a revolution component and a stirring component; the motor is fixedly connected to the support; the revolution component includes a revolution shaft, a revolution support bearing, an engine shell and a slip ring; the revolution shaft is coaxially fastened and connected with the inner ring of the revolution support bearing; the outer ring of the revolution support bearing is fastened and connected with the engine shell; the slip ring includes a stator and a rotor; the stator is fastened and connected with the engine shell through a flange; the rotor is coaxially connected to the revolution shaft; the stirring component includes a stirring drum, a rotating blade, a stirring shaft and a strain gauge; the stirring drum is fastened and connected with the engine shell; one end of the stirring shaft is coaxially fastened and connected to the motor through an elastic coupling, and the other end of the stirring shaft is coaxially fastened and connected with the revolution shaft; and therotating blade is installed on the stirring shaft, the strain gauge is fixedly pasted to the rotating blade, and the strain gauge is connected to a dynamic signal test analysis system through a connecting line and the slip ring. The structure is simple and operation is convenient. The dynamic signals of the rotating blade can be detected in real time and online modes.
Description
technical field [0001] The invention belongs to the technical field of engineering test devices, and in particular relates to a test device and a test method for the nonlinear dynamic response of a rotating blade in a granular medium. Background technique [0002] The interaction problem between granular matter and engineering structure can be classified as the coupling problem of discrete medium and continuum. The interaction of rotating blades with particulate matter is widely found in pharmaceutical, chemical, transportation, energy and other fields. The granular matter presents complex dynamic characteristics under the action of the moving structure, and the moving structure also shows obvious nonlinear dynamic characteristics due to the mutual contact with the particles. Due to the collision and friction between the granular materials and between the particles and the structure induced by the rotating blade in the granular medium, the vibration of the structure produce...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 李健费洪柱洪广洋潘静武
Owner NORTHEASTERN UNIV LIAONING