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Design and Implementation of PLC-Based Autonomous Construction System of Unmanned vibratory roller

Computers, Materials & Continua 2020年第10期65卷 897-912页

作者： Weizu Huang Dong Wang Zuodong Xiao Qiang Yao Danjie Du School of Instrument Science and Engineering Southeast UniversityNanjing210096China Anhui Jianghuai Automobile Group Corp.Ltd. Hefei230022China North Carolina State University RaleighUSA

The vibratory roller is a piece of vital construction machinery in the field of road *** unmanned vibratory roller efficiently utilizes the automated driving technology in the vehicle engineering field,which is innovative for the unmanned road *** paper develops and implements the autonomous construction system for the unmanned vibratory *** only does the roller have the function of remote-controlled driving,but it also has the capability of autonomous road *** overall system design uses the Programmable Logic Controller(PLC)as the kernel *** establishes the communication network through multiple Input/Output(I/O)modules,Recommended Standard 232(RS232)serial port,Controller Area Network(CAN)bus,and wireless networks to control the roller vehicle *** locating information is obtained through the Global Navigation Satellite System(GNSS)satellite navigation equipment group to support the process of autonomous *** to the experimental results,the autonomous construction system can finally enable the roller to perform driving operations and construction independently,which was a significant step forward in engineering application.

关键词： PLC-based autonomous construction unmanned system vibratory roller road engineering

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Performance analysis of semi-active cab’s hydraulic system of the vibratory roller using optimal fuzzy-PID control

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Journal of Southeast University(English Edition) 2019年第4期35卷 399-407页

作者： Nguyen Van Liem Zhang Jianrun Wu Zhenpeng Yang Xiuzhi School of Mechanical Engineering Southeast UniversityNanjing 211189China School of Mechanical and Electrical Engineering Hubei Polytechnic UniversityHuangshi 435003China

In order to evaluate the performance of semi-active cab’s hydraulic mounts(SHM)of the off-road vibratory roller with the optimal fuzzy-PID(proportional integral derivative)control,a nonlinear dynamic model of the vehicle interacting with off-road terrains is established based on Matlab/Simulink *** weighted root-mean-square(RMS)acceleration responses of the driver’s seat heave and the cab’s pitch angle are chosen as objective *** SHM is then optimized and analyzed via the optimal fuzzy-PID control under different operation *** simulations results show that the driver’s ride comfort and the cab shaking are greatly affected by the off-road terrains under various operating conditions of the vehicle,especially at the speed from 8 to 12 km/h on a very poor terrain surface of Grenville soil ground under the vehicle *** SHM using the optimal fuzzy-PID control,the driver’s ride comfort and the cab shaking are clearly improved under various operation conditions of the vehicle,particularly at the speed from 6 to 7 km/h of the vehicle traveling.

关键词： vibratory roller off-road terrains semi-active cab’s hydraulic system optimal fuzzy-PID(proportional integral derivative)control

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Low-frequency ride comfort of vibratory rollers equipped with cab hydro-pneumatic mounts

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Journal of Southeast University(English Edition) 2020年第3期36卷 278-284页

作者： Nguyen Van Liem Zhang Jianrun Lu Xi Huang Dacheng School of Mechanical Engineering Southeast University Nanjing 211189 China School of Mechanical and Electrical Engineering Hubei Polytechnic University Huangshi 435003 China

Based on the advantages of hydraulic and pneumatic mounts,a new hydro-pneumatic mount(HPM)is proposed to improve the low-frequency ride comfort of vibration *** the experiment of the vibratory roller,a nonlinear vehicle dynamic model working on off-road soil grounds is then established to assess the HPM's ride comfort in the low-frequency *** indices,the power spectral density(PSD)acceleration and root mean square(RMS)acceleration of the operator vibration and cab shaking,are chosen as objective functions in both the frequency and time *** research results show that when the cab isolations are equipped with the HPM,the RMS values of the operator's seat,cab's pitch and roll angles are reduced by 35%,42%and 53%;and the maximum PSD of the operator's seat,cab's pitch and roll angles are decreased by 39%,59%and 65%,***,the characteristics of the nonlinear damper and high-static stiffness of HPM can greatly reduce the operator vibration and cab shaking in the low-frequency region when compared to the vibratory roller's cab using the rubber mounts.

关键词： vibratory roller quality ride hydro-pneumatic mount low-frequency vibrations

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