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Study on Real-Time Measuring Method of Concrete Pump Discharge

Author: LiuHuiYong
Tutor: LiWei
School: Zhejiang University
Course: Mechanical and Electronic Engineering
Keywords: Concrete pump Displacement Measure Pressure Displacement Real pumping efficiency factor
CLC: TU646
Type: PhD thesis
Year: 2008
Downloads: 412
Quote: 1
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Abstract


Pumping concrete construction projects, concrete mixing and pumping normally two distant manner, mixing, transportation and construction side often as three different units. Construction machinery leasing industry due to information asymmetry underdog - Construction user side - raise much-needed concrete pump displacement method and system for real-time measurement. Concrete pump displacement not only give a real-time measurement of bipartite or tripartite construction business settlement brings convenience, but also to ensure the quality of construction as well as the relevant departments to provide an objective basis for monitoring. This paper introduces the concrete pump structure type and working principle; principle analysis based on rheological characteristics of the flow pumping concrete, pumping concrete pipes and pressure changes within the concrete pumping pressure loss affect a variety of factors, for the displacement measurement Method laid a theoretical foundation; AMESim simulation software built on concrete pump hydraulic system simulation model was simulated for the displacement measurement method study provides a theoretical basis; according to the working principle of concrete pump displacement mathematical model was established , the analysis of the concrete pump on the basis of the process, namely the displacement of the proposed measurement method based on pressure, based on pressure and displacement displacement measuring method, based on the displacement of the pressure measuring method of the trend, based on the pressure and displacement of the displacement trends measurement methods; based virtual instrument software LabVIEW prepared concrete pump pressure and displacement data collection procedures, field measurements of pumping hydraulic system pressure, outlet pressure concrete pump and concrete pump piston displacement; analysis of concrete pump pressure and displacement measurement signal characteristics were used median filtering, the moving average filter, wavelet transform, adaptive filtering and wavelet adaptive filtering method, the concrete pump pressure and displacement measurement signal for data processing, based on test data for various measurement programs were analyzed and compared; introduction time of the concrete pump displacement measuring device and mounting hardware structure of the measuring device is designed hardware and software discussed interference measures displacement measuring device; Finally, the working principle of various subsystems concrete pump, concrete pump introduces Smart monitoring and control system hardware components and installation structure design of the concrete pump intelligent monitoring and control system hardware and software. Displacement' dissertation">Displacement measurement method presented in this paper by analyzing concrete pump pressure and displacement signals, real-time calculated for each pumping stroke pumping efficiency factor and the actual displacement, the displacement of all the pumping stroke of the actual cumulative, that is to get the total concrete pump Actual emissions. Through field testing, the proposed displacement measurement methods and various existing displacement measurement methods compared to improve the measurement accuracy.

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CLC: > Industrial Technology > Building Science > Construction machinery and equipment > Concrete machinery and equipment > Concrete, mortar transport machinery
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