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Analysis of Mechanical Properties on Cargo Constraint System of Truck Rollover

Author: WangYiLi
Tutor: ZhaoYan
School: Wuhan University of Technology
Course: Mechanical and Electronic Engineering
Keywords: Vehicle rollover Tied up Cargo security
CLC: U461.1
Type: Master's thesis
Year: 2010
Downloads: 68
Quote: 3
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Abstract


With the increase in the amount of cargo transport, trucking security requirements increasingly high, the bundle of goods is also growing. At present, however, has not yet bundled Use, which will seriously hamper the popularity of bundled. To develop the use of bundled specification to first analyze the the laden vehicle accident bundled by force. For trucks of various incidents in a rollover accident, the higher frequency of serious harm, bundled force trucks rollover accident this study, the analysis required for the goods does not occur bulk package bundled the number, provide the basis for China to develop the use of bundled standard. Vehicle, cargo restraint devices constitute a system, selection of EQ 1 of 156W 3 -type truck for the study, selected according to the quality of the goods and the standard formula 2 TD 5 0B bundled as a cargo restraint devices established vehicles - cargo - the physical model of the restraint system. Lateral acceleration as vehicles - cargo - rollover restraint system indicators, calculated rigid body vehicle rollover threshold - goods - the restraint system, in order to pass fewer parameters to measure laden vehicle anti-rollover performance ultimately have the rollover threshold and the relationship of the height of the center of gravity of the laden vehicle. Analysis of rigid body vehicle basis, taking into account the impact of the tire and suspension of vehicle rollover, the suspension vehicles - cargo - a mathematical model of the restraint system, and then get the rollover threshold. According to the the suspension vehicle's rollover threshold, the establishment of the goods - bundled model, the theoretical analysis of the number of required bundled goods does not occur bulk package. This paper is divided into two steps to come laden vehicle rollover process bundled force vehicles - cargo - rollover restraint system model. Steps when the inside wheel did not leave the road, tire and suspension roll, roll angle to the plane of the system changes from 0 ° to 11.6 ° five degrees of freedom roll model, simulation analysis using the Matlab / simulink Step two is when the inside wheel off the road to come bundled with the maximum amount of elongation, and then come to its maximum force; roll angle of six degrees of freedom in the establishment of the system varies between 11.6 ° to 90 ° plane rollover model simulation analysis using the Matlab / simulink, come bundled with the maximum elongation, then come to its maximum force simulation analysis to determine the working load limit of the value is greater than the bundled goods does not occur scattered required number of bundled package. Goods vehicle rollover accident occurred when the goods are not a bulk package the bundled the quantity required according to the above theoretical analysis and simulation software, draw, and learn from the American standard formula, bundled with the selection formula to meet the truck rollover requirements.

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CLC: > Transportation > Road transport > Automotive Engineering > Car theory > Vehicle dynamics and automotive mechanics
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