loading noise中文什么意思

例句与用法

1. In addition , the error comes from the arithmetic discussed above is analyzed and an error criterion which made this arithmetic suitable for forecasting the loading noise in engineering is given based on the calculational results
   并结合实际算例,对本文算法中所产生的误差作了比较分析,总结出了一个误差判据。
2. The theoretical deduction in chapter 3 shows that the shape of load distribution used in the arithmetic is a decisive fact of the error margin size , the more the adoptive shape looks like the actual case , the smaller the error margin will be , therefore the tilt parabola shape can instead of the actual shape of load distribution in the permissible error margin when we predicting constant loading noise caused by the tail rotor of helicopter
   在第三章中通过理论推导和计算比较发现,在预测直升机尾桨定常载荷噪声时,其误差大小取决于算法中桨叶弦向载荷分布的数学描述与实际弦向载荷分布的吻合程度,而选取一种与实际弦向载荷分布较为相似的斜抛物线形来预测噪声所导致的误差是很小的。
3. In chapter 2 , the fluctuate equation of monopoly sound field and dipole sound field is deduced detailedly , the root of this equation is given . analytical models is developed to investigate the noise of helicopter tail rotor , that is to say : the thickness noise and the loading noise is determined by a monopole source and a dipole source respectively
   在第二章中对单极子声场和偶极子声场的波动方程及其求解做了详细的理论推导,建立了直升机尾桨的厚度噪声和载荷噪声计算模型,即可分别用单极子和偶极子声源描述厚度噪声和载荷噪声。