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关于切削速度对挖掘阻力的影响,最初人們普温存在这样的一种观点:切削速度对切削阻力没有影响。因为一般的土方机械,其切削速度一般为0.6～1米/秒,在这个切削速度区間內,切削阻力的变化受切削速度影响是不大的。但随着技术的发展,土方机械的切削速度必然增加,研究土方机械切削速度对挖掘阻力的影响也就变成“土壤切削”这門科学的一个任务了。本文将对今后研究切削速度应走什么方向,前人作了些什么工作;在目前設計中应如何考虑;参考什么……等作一簡单的介紹。在土壤切削速度的科学研究方面,M.L.Niehos和他的同事們作了一系列的工作。可惜作者没有看到他們的著作,所以这方面不能有所介紹。
With regard to the influence of cutting speed on the excavation resistance, people at the beginning had a view that the cutting speed had no effect on the cutting resistance. Because the general earth-moving machinery, the cutting speed is generally 0.6 ~ 1 m / s, in this cutting speed range, the cutting resistance changes by the cutting speed is not significant. However, with the development of technology, the cutting speed of earth-moving machinery will inevitably increase, and the influence of the cutting speed of earth-moving machinery on the resistance of excavation will become a task of the science of “soil cutting”. This article will discuss what direction the cutting speed should take in the future, what the predecessors have done; how they should be considered in the current design; what to refer to... for a brief introduction. In the scientific research of soil cutting speed, M.L. Niehos and his colleagues made a series of work. Unfortunately, the author did not see their work, so this aspect cannot be introduced.