| 水蜜桃动态松弛特性与模型表征 |
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| 引用本文： | 周德志,卢立新.水蜜桃动态松弛特性与模型表征[J].包装工程,2005,26(6):12-13,21. |
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| 作者姓名： | 周德志 卢立新 |
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| 作者单位： | 江南大学,无锡,214122;国家轻工业包装制品监督检测中心,无锡,214122;江南大学,无锡,214122;国家轻工业包装制品监督检测中心,无锡,214122 |
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| 摘 要： | 果品在运输过程中由于受重复载荷作用会出现软化现象,产生累积损伤.研究果品的动态松弛特性对揭示果品损伤规律和进行合理的缓冲包装至关重要.以水蜜桃为研究对象,通过准静态压缩试验确定其压缩破坏临界变形量,并在临界变形量的范围内研究其峰值力松弛特性,建立水蜜桃动态松弛特性的三单元力学模型,结合实验数据进行模型表征.
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| 关 键 词： | 果品 流变模型 水蜜桃 松弛模量 动态特性 损伤 |
| 文章编号： | 1001-3563（2005）06-0012-02 |
| 收稿时间： | 2005-10-17 |
| 修稿时间： | 2005-10-17 |
Dynamic relaxation property and modelling for peach |
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| ZHOU De-zhi,LU Li-xin.Dynamic relaxation property and modelling for peach[J].Packaging Engineering,2005,26(6):12-13,21. |
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| Authors: | ZHOU De-zhi LU Li-xin |
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| Affiliation: | 1. Southern Yangtze University, Wuxi 214122, China; 2. China National Control and Test Center for Packaging Quality, Wuxi 214122, China |
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| Abstract: | Fruits are softened by cyclic loading during transport, and often appear cumulative bruising. A three - element rheological model which depicted the relaxation properties of peach was developed in this paper, and the parameters of the model was determined by half - sine strain test within the critical compression displacement which was determined by constant - strain - rate loading test. The results pave the way for studying mechanical damage of fruits and choosing reasonable parameters of cushion packaging. |
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| Keywords: | fruits rheological model peach relaxation modulus dynamic properties bruise |
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