Monitoring system and method of wind and rain load of structure surface
A technology for wind and rain loads and structural surfaces, applied to measuring devices, force/torque/power measuring instruments, instruments, etc., to achieve low cost effects
Inactive Publication Date: 2016-02-03
袁晓龙
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Problems solved by technology
[0004] In order to solve the above technical problems, the present invention proposes a system and method for monitoring wind and rain loads on the surface of structures by using piezoelectric ceramic polymers, which can effectively solve the problems of measurement cost and accuracy of small wind and rain loads, and is suitable for mass promotion and use
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[0027] In order to understand the technical content of the present invention more clearly, the following examples are given in detail, the purpose of which is only to better understand the content of the present invention but not to limit the protection scope of the present invention.
[0028] Such as figure 1 As shown, a monitoring system of wind and rain load on the surface of a structure includes a signal acquisition system 1 and a sensor package 2, and the sensor package is pasted on the outer surface of the measured structure; the sensor package includes an encapsulation material 21 and a A flush and stress-free packaging method is provided in several piezoelectric ceramic sensors 22 arranged in an array in the encapsulation material, and the piezoelectric ceramic sensors are connected to the signal acquisition system; the piezoelectric ceramic sensors can Generate a charge pulse signal corresponding to the force of the wind and rain load on it, and transmit it to the sig...
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Abstract
The invention discloses a monitoring system and method of the wind and rain load of a structure surface. According to the monitoring system and method, a plurality of piezoelectric ceramic sensors are arranged to form an array, and the array is encapsulated in an encapsulation material through an alignment and stress-free encapsulation method, so that a sensor encapsulation body can be formed, and therefore, the problems of brittleness in the quality of piezoelectric ceramic sheets and poor waterproof performance of the piezoelectric ceramic sensors can be solved; the piezoelectric ceramic sensors are advantageous in low cost; the sensor encapsulation body can be bonded at a tested structure surface through using epoxy resin, and the piezoelectric ceramic sensors can be utilized to monitor the wind and rain load of the structure surface in real time; and charge pulse signals generated by the piezoelectric ceramic sensors due to the action of the wind and rain load can be acquired through a signal acquisition system, and the charge pulse signals can be analyzed and processed, so that a stress field on the surface of the sensor encapsulation body can be obtained, and therefore, tiny wind and rain load of the structure surface can be monitored in real time. Compared with other monitoring methods, the monitoring method of the invention has the advantages of reliability, stability, low cost, high sensitivity, easiness in implementation and suitability for large-scale and wide use.
Description
technical field [0001] The invention relates to the technical field of monitoring dynamic loads on the surface of structures, in particular to a monitoring system and method for wind and rain loads on the surface of structures. Background technique [0002] Structural design codes based on the linear behavior of structures under dynamic loads With the further increase in the height, span, and shape area of modern building structures, the further promotion of new materials and new systems, wind, rain loads and their coupling effects are becoming more and more serious. More attention has been paid by structural designers, and wind loads have been considered in design loads in current high-rise codes. However, due to the lack of measured data, there is no reference value in design or experiment for highly nonlinear wind and rain loads. Therefore, for weak loads such as wind and rain loads, it is necessary to develop a load sensor with a small range. [0003] Sensitive eleme...
Claims
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Inventor 袁晓龙
Owner 袁晓龙