heavy-load

Study on Dynamic Load Factor of High-Speed and Heavy-Load Gear Transmission System

高速重载齿轮传动动载系数分析

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Circular steel tube& steel reinforced PP ECC beam-column connections use PP ECC to replace the core area concrete and to fill in the circular steel tube together with the steel reinforcements, which is a perfect combination of a new material and a high-performance heavy-load column.

圆钢管&钢骨PP ECC梁柱节点是将PP ECC取代核心区混凝土并跟钢骨一起内置于圆钢管内，是一种新材料与一种高性能重载柱的完美结合。

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A method considering thermo-elastic, time-varying meshing stiffness, movement gap, errors and tooth temperatures has been proposed to emulate the high-speed and heavy-load gear transmission under the entire running conditions.

⑵提出了综合考虑热弹性、时变刚度、间隙、体积温度等各种因素下的高速重载齿轮系统全工况动态性能分析方法。

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The heavy-load transportation is a worldwide problem, which has come to attention at home and abroad and has been researched.

重载交通现象是世界范围内普遍存在的问题，已引起国内外道路工作者的关注，并对此进行了许多尝试性和探讨性的研究。

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The paper is based on innumerable practical heavy-load road data, deliberate heavy-load standard in detail through theoretical arithmetic, and bring heavy-load standard about cement concrete pavement and asphalt concrete pavement separately;

本文以大量的重载道路资料为主，从实际出发，结合理论计算，对重载标准进行了详细的讨论，分别给出了水泥混凝土路面与沥青混凝土路面的重载标准了；

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Since 1980s, heavy-load transportation had been chosen as one of the main direction of developments by Ministry of Railways.

从20世纪80年代起，铁道部瞄准世界铁路科技发展前沿，把发展重载运输作为主攻方向之一。

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Circular steel tube& steel reinforced PP ECC beam-column connections use PP ECC to replace the core area concrete and to fill in the circular steel tube together with the steel reinforcements, which is a perfect combination of a new material and a high-performance heavy-load column.

圆钢管&钢骨PP ECC梁柱节点是将PP ECC取代核心区混凝土并跟钢骨一起内置于圆钢管内，是一种新材料与一种高性能重载柱的完美结合。

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Paper has innovation in some following aspects: With coupled thermo-elastic finite element model to acquire the deformation and stiffness curves of the high-speed and heavy-load gear transmissions.

论文在以下几个方面具有创新性：⑴采用热弹耦合有限元方法得到高速重载齿轮传动的变形和刚度曲线。

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