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首页> 外文期刊>International journal of design engineering >Effect of change in bulk density of a material on the dynamic performance of belt conveyor
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Effect of change in bulk density of a material on the dynamic performance of belt conveyor

机译：物料堆积密度的变化对皮带输送机动力性能的影响

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摘要

The static and dynamic effect of variation of bulk density on conveyor performance is studied in this paper with finite element analysis models using a combination of beam, spring and mass elements. Conveyors of 100 m (short) and 700 m (long) were studied. The material conveyed is anthracite with a variation of ±10% in bulk density. Various operational cases like normal start and run, aborted start and run, and controlled stop were simulated. In the transient analysis, it was observed that the change in bulk density of the anthracite across various operational cases caused a variation ranging from 5%-35% in dynamic parameters such as displacement, acceleration, and tension. These variations result in an excessive stretch of belt and displacement of the take-up, and introduces jerk which is largely undesirable. The effect of the change in bulk density was more evident in short conveyors when compared with long conveyors.
机译：本文结合梁，弹簧和质量单元的有限元分析模型，研究了堆密度变化对输送机性能的静态和动态影响。研究了100 m（短）和700 m（长）的输送机。输送的材料是无烟煤，其堆积密度变化为±10％。模拟了各种操作情况，例如正常启动和运行，中止启动和运行以及受控停止。在瞬态分析中，观察到无烟煤在各种操作情况下的堆积密度变化导致动态参数（例如位移，加速度和张力）的变化范围为5％-35％。这些变化导致皮带的过度拉伸和卷带的移位，并且引入急动，这在很大程度上是不希望的。与长传送带相比，在短传送带上堆积密度变化的影响更为明显。

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