Method for controlling vibrating response peak value by memory alloy spring

A memory alloy spring, vibration response technology, applied in the direction of non-rotation vibration suppression, etc., can solve the problems of large space size, unsuitable space vehicle use, heavy weight, etc., to achieve the effect of protection and safety

Active Publication Date: 2009-03-18
AEROSPACE DONGFANGHONG SATELLITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has related research and development reports in construction and other industries, but it requires a large space and heavy weight. It is still in the exploration stage in engineering applications and is not suitable for use on space vehicles.

Method used

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  • Method for controlling vibrating response peak value by memory alloy spring
  • Method for controlling vibrating response peak value by memory alloy spring
  • Method for controlling vibrating response peak value by memory alloy spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take the chassis circuit board vibration reduction as an example.

[0026] 1. The dynamic load carrying capacity of the circuit board in this embodiment is 35g, and it is determined that the maximum response peak value does not exceed 35g. Since the damping space is less than 10mm, the one side of the damping space is taken as 2.3mm, and the height of the spring is 3.5mm. According to the calculation method of conventional springs referred to in the spring chapter of the mechanical design manual, the relevant parameters of the memory alloy material are input, and the type of spring is preliminarily determined to be the spring leaf configuration.

[0027] A set of memory alloy spring pieces is used to load in the groove, and each spring piece transmits the load evenly. The bearing capacity P of a set of spring pieces is 2.9N. The calculation curve is as follows Figure 7 , represented by three broken lines above O-A, A-B, and B. O-A is simplified to a straight line, wi...

Embodiment 2

[0055] like Figure 8 Shown is the embodiment of the present invention when the precision instrument board is transported and damped.

[0056] 1. According to the dynamic load carrying capacity of the precision instrument board, the maximum vibration peak value is determined to be 1g; the vibration reduction space of the new special transport box is not limited, and it is determined by calculation. According to the calculation method of conventional springs referred to in the spring chapter of the mechanical design manual, the relevant parameters of memory alloy materials are input, and the type of spring is preliminarily determined to be a cylindrical spring configuration that is more convenient for engineering implementation.

[0057] 2. Select memory alloy superelastic cylindrical spring 6. Measure the platform characteristic curve of spring, and revise, calculate the design parameter of spring, as embodiment 1.

[0058] 3. Install selected springs at the four corners of ...

Embodiment 3

[0061] like Figure 9 Shown is the embodiment of the present invention when the whole machine is transported and damped.

[0062] 1. According to the dynamic load carrying capacity of the whole transport machine, the maximum vibration peak value is determined to be 0.6g. Since the damping space is not limited, after installation, refer to the conventional spring calculation method in the spring chapter of the mechanical design manual, input the relevant parameters of the memory alloy material, and initially determine the type of spring as memory alloy superelastic extension spring and superelastic square saddle pad .

[0063] 2. Measure the platform characteristic curve of the spring, and calculate and correct the design parameters of the spring according to the method of embodiment 1.

[0064] 3. After installing the memory alloy superelastic extension spring 10 and the superelastic square saddle pad 13 above the frame, install the whole machine 11 in the vibration damping ...

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Abstract

The invention discloses a method for controlling a response peak value of the vibration by a memory alloy spring, which comprises the following steps: 1) the control over the response peak value of the vibration is determined according to the dynamic load capacity of vibration absorbing equipment; 2) according to the given vibration absorbing space, the weight of the vibration absorbing equipment and the requirement of the installation, the type of a memory alloy superelastic spring is determined; 3) the bearing capacity of the memory alloy superelastic spring is calculated by utilizing the memory alloy superelastic platform effect to obtain the parameters and the quantity of the memory alloy superelastic spring; and 4) the memory alloy superelastic spring is arranged to realize the control to the response peak value of the vibration. The method determines the control over the response peak value of the vibration according to materials, the shape and the given dynamic load capacity of the vibration absorbing equipment, then selects the type of the spring according to the vibration absorbing space, utilizes a memory alloy superelastic platform to control the response peak value of the vibration, can ensure that the response peak value is stabilized within the preset range, and effectively protect the safety of the equipment.

Description

technical field [0001] The invention relates to a method for controlling the peak value of vibration response, in particular to a method for controlling the peak value of vibration response by using memory alloy springs. Background technique [0002] Using the characteristics of springs and high damping pads and shock absorbers to reduce and isolate the energy consumed by the mechanical engineering structure of the spacecraft is a traditional method of vibration reduction and isolation. With the increase of dynamic load, the vibration response peak still increases to a certain extent, and the response peak may be overloaded to cause damage or failure of the product. Under normal circumstances, the traditional vibration reduction and isolation measures at the peak value of a certain frequency band often have little effect on the peak vibration reduction of other frequency bands or no longer play a role in vibration reduction. It is necessary to select the spring parameters, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/06
Inventor 包锦忠刘冬妹姚芳
Owner AEROSPACE DONGFANGHONG SATELLITE
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