Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 411884
Title Error analysis and data forecast in the centre of gravity measurement system for small tractors
Author(s) Jiang, J.D.; Hoogmoed, W.B.; Yingdi, Z.; Xian, Z.
Source International Agricultural Engineering Journal 20 (2011)1. - ISSN 0858-2114 - p. 35 - 46.
Department(s) ATV Farm Technology
Publication type Refereed Article in a scientific journal
Publication year 2011
Abstract A novel centre of gravity measurement system for small tractors with the principle of the three-point reaction is presented. According to the prototype of a small tractor gravity centre test platform, a mathematic multi-body dynamics prototype was built to analyze the measurement error in the centre of gravity measurement system. For the precision evaluation, interrelationships among the factors were studied which included the test platform structural parameters, the error of measurement sensors and the displacement of drive-pillar and the mass of measurement object. In succession, a virtual collaborative model of the centre of gravity measurement system was built and verified by a real prototype-based measurement platform. A modified gray model GM(1,1), which was used for forecasting the gravity height of small tractors, was proposed to avoid deviation of test data and so improved the measurement accuracy. A series of standard test object experiments were carried out, and the results showed that the relative error of the gravity height was up to 0.93%
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