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

A three-way vibration and impact reduction integrated device and its use method

A horizontal and vertical technology, applied in the field of mechanical environment mitigation design, can solve the problems of temperature influence, unfavorable standardized design, etc., and achieve the effect of translational vibration reduction and rotational stiffness

Active Publication Date: 2021-07-13
BEIJING INST OF STRUCTURE & ENVIRONMENT ENG +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned material properties are seriously affected by temperature, and have obvious stiffness nonlinear characteristics, which will have unpredictable effects on spacecraft attitude control systems and other systems that require precise control, which is not conducive to standardized design

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
  • A three-way vibration and impact reduction integrated device and its use method
  • A three-way vibration and impact reduction integrated device and its use method
  • A three-way vibration and impact reduction integrated device and its use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1, a three-way integrated device for vibration and impact reduction, including two transverse vibration-damping components and one longitudinal vibration-damping component,

[0047] Such as figure 1 , 2 , the transverse damping part is composed of three bottom plates 1 and two side plates 2 connected to the square beam 3 on the upper side. Four first holes 5 are respectively arranged on the first bottom plate 1, and the first holes 5 are connected to the vibration source through bolts, and four second holes 6 are arranged on the middle bottom plate 1, and the second holes 6 are connected to the object to be subjected to vibration isolation through bolts , so that when the vibration source vibrates perpendicular to the side plate, most of the energy is retained in the lateral vibration damping part through the vibration of the side plate, thereby reducing the vibration magnitude transmitted to the object that needs to be isolated, and realizing the lateral vi...

Embodiment 2

[0053] Embodiment 2, the load measurement of the vibration reduction-impact reduction integrated device

[0054] The realization of the load measurement function is based on the strain measurement principle. The side plate of the lateral vibration damping component satisfies the principle of linear deformation, that is, the strain and the load correspond one-to-one, showing a linear relationship. The corresponding relationship is represented by the load sensitivity. Therefore, the structure deforms under the action of the external load, and the strain of the structure can be measured to obtain the structure internal load.

[0055] Each component in the vibration-reduction integrated device is equivalent to a one-way force sensor, and the vibration-reduction integrated device is equivalent to a three-way force sensor. The realization of the load measurement function depends on the system composition Including strain gage bridge, dynamic strain transducer, cable, data collector...

Embodiment 3

[0069] Embodiment 3, the method of using the vibration reduction-impact reduction integrated device includes the following steps:

[0070] Step 01, install the integrated vibration reduction-shock reduction device and measurement system, including the following steps:

[0071] (1) According to Figure 7 The position of the load measuring point, and paste the strain gauge at the corresponding position of each vibration-absorbing component;

[0072] (2) Bolt the vibration-reduction-impact-reduction integrated device to the foundation, assemble and connect the three vibration-reduction components, and connect the vibration-isolated instrument to the vibration-reduction-impact reduction integrated device;

[0073] (3) According to Figure 8 According to the requirements, the strain gauges are connected to form a bridge for measuring force loads in three directions, with a total of 3 channels;

[0074] Step 02, performing a calibration test, includes the following steps:

[007...

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 discloses a three-way integrated device for vibration reduction and impact reduction and its application method. The device includes two transverse vibration reduction components and one longitudinal vibration reduction component. The device can achieve the integration of vibration reduction and impact reduction effects at the same time. , at the same time realize the decoupling of the stiffness in the direction of each degree of freedom, achieve the translational vibration reduction effect without reducing the rotational stiffness, and integrate the load measurement function to obtain the force load on the payload connection interface of concern. The device can be applied to vibration and impact mitigation of payloads and payload equipment on new launch vehicles and missile weapons without introducing redundant objects, and can also be widely used in the field of civilian vibration reduction and shock reduction.

Description

technical field [0001] The invention relates to the slowing design of the mechanical environment of the spacecraft structure, in particular to an integrated device with the functions of vibration reduction and impact reduction in the directions of three degrees of freedom and an integrated load measurement function. Background technique [0002] Vibration mitigation is mostly based on the principle of vibration isolation. An elastic support is used to separate the instrument and equipment requiring vibration reduction from the vibration source. The vibration is locked in the elastic support through springs, damping and auxiliary masses, and the damping can also dissipate part of the energy. , making the vibration permeability less than one, thereby reducing the amplitude of the payload to a tolerable level. [0003] Shock loads propagate in the structure in the form of waves. In the 1970s, NASA conducted a statistical analysis of the transfer characteristics of a large numbe...

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 Patents(China)
IPC IPC(8): G01N3/08F16F7/00
CPCF16F7/00F16F2228/06F16F2230/0047F16F2234/06G01N3/08G01N2203/0256
Inventor 刘思宏贾亮洪良友马斌捷张伟王帅张明明李双张冬梅崔高伟
Owner BEIJING INST OF STRUCTURE & ENVIRONMENT ENG