一个公式怎么能产生这种破坏性冲击？
在理想线性模型的基础上，研究了输入流量对液压凿岩机冲击机构工作参数的影响，得到了一组简明公式。
On the basis of theoretical linear model, the paper studies the influence of input flow on operating parameters of shock mechanism for hydraulic rock drill, and a series of brief formulae are derived.
目前针对泥石流冲击压力的计算公式均假定泥石流体为连续流体。
At present, several formulas of impact load about debris flow in common use are based on the hypothesis that debris flow is continuous flow.
在这个高度下，冲击形成的机制也有很明显的改变，所以递增公式也就不再适用了。
The mechanism of shock formation apparently changes, too, at these altitudes so that the scaling laws are no longer applicable.
提出了球—板间隙和环—板间隙正操作冲击50%击穿电压的估算公式。
Formulas for estimating 50% breakdown voltages of sphere-plane and ring-plane gaps are presented.
对清筛机的扒碴工作原理目前还研究不够，本文提出了剪切、冲击扒碴原理，导出了确定扒碴功率的公式。
In this paper, the theory about shear and clash in harrowing ballast is suggested and the formulae for determining the power of harrowing ballast are deducted.
本文基于两相流理论建立了泥石流冲击力计算公式；
The impact formulas in two-phases theory are established in this paper.
结果表明：实验测量的冲击压力与定标公式的结果较为接近。
The experimental results showed that shock wave pressure was close to the pressure estimated from the scaling relation.
提出用极限比速法，并采用厂家公式校核的方法选取冲击式机组。
An ultimate specific speed method checked by formula of manufacturer is proposed.
分析了冲击载荷作用下粘性流体阻尼器的工作原理，推导了阻尼力公式的表达式，运用落锤冲击试验确定了其中的参数。
The work principle of the viscous fluid damper under shock load is analyzed and the damping expression is derived, the parameters of which are determined using shock tests.
通过对NG82-1型冲击电流计测高阻计算公式的讨论，找到用自然对数计算较为方便。
Through the discussion of computing formula for measuring high resistance by Mdoel NG82-1impact corrent galvanometer, it is discoverde that it is much casier to do calculation by natural logarithm.
当刚壁速度为零时，这些公式退化成空气冲击波遇固壁相互作用的计算公式。
When the velocity of the rigid wall is zero, these formulas degenerate to that for the interaction of air shock wave with static rigid wall.
依据行波能量吸收方法推导出了锚杆受爆炸波冲击时所需张力增量计算公式。
Based on the basis of traveling wave energy absorption method, the formula of allow tension increment of anchorage cable under condition of the blast wave shock is derived.
在该公式中，桩端土的静阻力可以直接从桩顶的加速度信号中获得的桩顶回弹和冲击力持续时间计算得到，并且计算结果和土阻尼无关。
In this method, the static resistance at pile toe can be calculated directly with the rebound at pile top and impulse duration from the acceleration signal at pile top.
从公式推导可以看出，模态分析法同样可以用来解决此类冲击问题。
From the derivation, it is seen that the modal method can also be used to solve this kind of impact problem.
对相同凹坑深度下的冲击能量与准静态压痕力进行了数值分析，并提出了冲击能量与准静态压痕力间的等效性公式。
By numerical analysis of the impact energy and static indentation force under the same dent depth, a new equivalent formula is set up, which corresponds well with the results of the tests.
并根据往复泵的能量方程推导了液动冲击器的单次冲击功、能量利用率和冲击频率的计算公式，并利用实测数据进行了验证。
The calculating formulas for the power of single stroke, utilization efficiency of energy and frequency of strokes are derived from the energy equation of the reciprocating pump.
对于计算公式的准确度又作了讨论，指出了采样初相位的计算误差对冲击测量误差的计算基本没有影响。
Thus, the difficult problem concerning theoretical calculation of impulse measurement errors of digitizers is systematic solved. Calculation accuracy is also discussed.
对于计算公式的准确度又作了讨论，指出了采样初相位的计算误差对冲击测量误差的计算基本没有影响。
Thus, the difficult problem concerning theoretical calculation of impulse measurement errors of digitizers is systematic solved. Calculation accuracy is also discussed.
应用推荐