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A Method for Acquiring Accumulated Energy of Piezoelectric Generating Circuit Surface

A technology of accumulating energy and piezoelectric power generation, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as fracture damage, complex traffic volume composition, road stress damage, etc., and achieve convenient use quick effect

Active Publication Date: 2017-09-26
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (A) According to the time distribution characteristics of driving traffic, the times and speeds of traffic loads are different in the same period of time. The load in the viscoelastic model acts on the road at a certain frequency, which cannot objectively reflect the number of driving loads and Load action time interval and other working conditions
[0006] (B) In the road system, the traffic volume composition is complex and the axle load composition is complex, so that F(t) in the viscoelastic model cannot well simulate the effect of real road traffic load on the power generation surface
[0007] (C) The application of piezoelectric elements for roads on the road will destroy the continuity of the pavement structure, causing stress damage or even fracture damage to the road performance of the pavement. The elastoplasticity in the model cannot completely simulate the internal force of the pavement
[0008] Therefore, the traditional piezoelectric element energy output research method is not suitable for direct application to the power output analysis of the power generation surface system. If a theoretical calculation method for the energy output of the piezoelectric power generation surface can be provided, it will be beneficial to the research and application of the power generation surface. Guiding significance

Method used

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  • A Method for Acquiring Accumulated Energy of Piezoelectric Generating Circuit Surface
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  • A Method for Acquiring Accumulated Energy of Piezoelectric Generating Circuit Surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Example 1: Expressway

[0081] This embodiment is aimed at an expressway in a certain city. The specific parameters are shown in Table 1, and the method for obtaining the accumulated energy of the piezoelectric generator surface is given: the specific calculation method is carried out according to the following steps:

[0082] Table 1 Expressway Traffic Parameters

[0083] road category

Design speed (km / h)

Representative speed (km / h)

Standard traffic volume (vehicle / d)

highway

60～80

70

11300

[0084] Step 1: The pressure on the piezoelectric element on the road surface when the vehicle is static and running at a constant speed is converted according to the load stress equivalent conversion principle of the moving wheel load on the stress effect of the piezoelectric element, and the piezoelectric element bears vertically The equivalent stress is:

[0085] Simple stress analysis with the help of small software BISAR can get

...

Embodiment 2

[0120] Example 2: Trunk Road

[0121]This embodiment is aimed at the trunk road of a certain city, and the specific parameters are shown in Table 2, and the method for obtaining the accumulated energy of the piezoelectric generator surface is given: the specific calculation steps are the same as in Example 1, and the calculation result is E 总 = 2.04mJ.

[0122] Table 2 Traffic parameters of trunk roads

[0123] road category

Embodiment 3

[0124] Embodiment 3: non-stop toll booth

[0125] This embodiment is aimed at a non-stop toll station on an expressway. The specific parameters are shown in Table 3, and the method for obtaining the accumulated energy of the piezoelectric generator surface is given: the specific calculation steps are the same as in Example 1, and the calculation result is E 总 = 15.6mJ.

[0126] Table 3 Traffic parameters of non-stop toll stations

[0127] road category

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Abstract

The invention provides a method for obtaining the accumulated energy of the piezoelectric generating circuit surface. By analyzing the electric energy that can be generated by the piezoelectric element in the generating circuit surface under the action of a single standard load, the energy output of the generating circuit surface for energy accumulation is established in combination with the traffic axle load conversion theory. ability. The power generation energy output analysis method based on traffic load accumulation avoids various problems caused by the mechanical application of traditional energy output research methods in power generation surfaces, and is suitable for analysis and evaluation of power generation surface power output in different time periods and different road environments.

Description

technical field [0001] The invention belongs to the field of road engineering applications and relates to a piezoelectric generating circuit surface, in particular to a method for obtaining accumulated energy on a piezoelectric generating circuit surface. Background technique [0002] By the end of 2013, the number of motor vehicles in my country reached 250 million, of which 127 million were automobiles, which indicates that my country has officially entered the era of automobiles. Such a huge number of motor vehicles means that roads in our country will bear billions of vehicle loads. Converted into kinetic energy and strain energy, these energies are finally converted into heat or other energies on the road surface and dissipated in the road environment. According to reports from relevant agencies, 15,000-20,000 traffic passes through the main roads of ordinary cities every day, which is equivalent to wasting at least 30,000-40,000 tons of organic energy per day on each ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 王朝辉李天宇殷卫永李彦伟高志伟李岩军王帅赵建雄王海梁石鑫封栋杰刘志胜
Owner CHANGAN UNIV