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作者通过三种计算模型,对1t至16t锻锤基础进行了计算,并与建造在黄土亚粘土层上的1t、2t、3t、5t、10t、16t模锻基础及其砧座的实测资料作了对比,证明:(1)锻锤基础设计中采用双自由度、有阻尼的计算模型,求得的结果与实测值比较符合;(2)准确地计算地基抗压刚度系数以及基础下的影响深度,对于正确确定锻锤基础的振频特性有着十分重要的意义。本文从锻锤基础和砧座均达到允许振幅为出发点,提出了砧座质量与基础质量、垫层刚度与地基刚度之间最佳比值的优化设计方法。按此法设计,在锻锤基础振幅相同的条件下可节约基础材料。
The author calculated the basis of the 1t to 16t forging hammer through three calculation models, and measured data of the 1t, 2t, 3t, 5t, 10t, 16t swage foundation and its anvil built on the loess sub-clay layer. The comparison shows that: (1) A two-degree-of-freedom, damped calculation model is used in the design of the forging hammer foundation, and the obtained results are in good agreement with the measured values; (2) Accurately calculating the compressive stiffness coefficient of the foundation and the influence under the foundation. Depth has very important significance for correctly determining the vibration frequency characteristics of the foundation of the hammer. In this paper, starting from the permissible amplitude of the forging hammer base and the anvil, the optimal design method for the optimum ratio between the quality of the anvil and the foundation mass, the cushion stiffness and the foundation stiffness is proposed. According to this design, basic materials can be saved under the same amplitude of the hammer base.