推土机作业时履带接地比压分布的研究

本文从履带接地比压呈线性分布和非线性分布两种可能出发,通过力学分析,导出更具普遍意义的数学模型。所述模型简单、适合工程计算且有比较明确的物理意义。     

浅谈矿山排土场设计及优化治理

排土场作为露天矿开采堆存废石的重要场所,其安全性影响整个露天矿开采的质量及安全。因此,文章以某矿山排土场为例,针对排土场安全设计及稳定性优化进行针对论述,希望能够为矿山安全高效的生产增砖添瓦。     

Duality of boiling systems and uncertainty phenomena

Interactions among dry patches at high heat flux are theoretically analyzed. The high heat flux boiling experiments on metal plate wall with different materials and thickness are correspondingly conducted. The duality of boiling system, i.e. hydrodynamic performance and self-organized performance is identified. A unified explanation of hydrodynamic models and dry patches models is given. The scatter and uncertainty in boiling data can be mainly attributed to the intrinsic duality, but not the sole surface effects. The present experimental results explain why the deviation point at high flux boiling is seen only on occasion and why the self-organization of dry patches is often ignored in available literature.