介绍了对发动机油底壳进行噪声预测的两种方法。
This paper described two methods on how to predict the radiated noise of engine oil pan.
本噪声预测软件的开发，使复杂的噪声预测计算更加简便。
The exploitation of this software makes complicated noise prediction calculation convenient.
预测值与实测值基本相符 ，可直接应用于城市噪声预测。
该方法对我国高速铁路和客运专线铁路的噪声预测有一定参考价值。
This method has some consultant value for the noise prediction of high-speed railway and special passenger railway in our country.
研究结果表明：该模型在发动机纯排气噪声预测方面具有足够的精度；
Simulation calculation and experimental study for the pure exhaust noise of engine were carried out under the same operating conditions.
对现有的道路交通噪声预测的经验模型方法进行了评述，讨论了其不足之处。
This paper discusses the experiential model used in the current road traffic noise forecast and points out its drawback.
本文通过对国内外铁路噪声预测模式比较分析，找出影响铁路噪声分布的主要影响因子。
The domestic and international railway noise predicted models has been analyzed and find out main environment factors affecting noise.
文章探讨了开发小区交通运输噪声环境影响分析中对车流量预测和噪声预测的几种技术方法。
This paper discussed some key issues of environmental impact analysis of traffic noise due to the small development area.
根据中国民航规章中有关飞机适航噪声审定的要求和噪声预测原理建立了飞机噪声预测系统软件。
According to the requirement of aircraft noise certification of CCAR and the foundation of aircraft prediction, a program system for aircraft noise prediction (ANPS) has been developed.
在比较国内外各种道路交通噪声预测模型特点的基础上，选择了一种修正预测模型，预测出理论噪声值。
Through comparing various domestic and international traffic noise prediction models, a revised forecast model was selected to predict theoretical noise value.
根据实测所得交通流量和车型分布，采用预测为主、实测为辅的方法对典型居住小区进行了交通噪声预测与评价。
Road traffic noise in a sample housing estate was assessed using prediction method and based on collected traffic flow and vehicle type data.
对公路交通噪声预测模型进行了分析推导，指出美国联邦公路局FHWA模型为近似表达式，并给出了精确表达式。
Highway traffic noise prediction model is deduced and analyzed. It is indicated that the FHWA model originating from USA Federal Highway Administration is an approximate representation.
本文以is100- 65 - 315离心泵为具体研究对象，对结构噪声预测与优化控制进行了初步的研究。
The IS100-65-315 centrifugal pump as the research object, the prediction and optimization of the structural noise has been studied.
本文通过分析影响公路交通噪声的各种因素，并利用实测样本数据，建立了一个公路交通噪声预测的神经网络模型。
By using some road traffic noise measured data, a model of neural network for road traffic noise prediction was established.
本文对拖拉机驾驶室内低频噪声预测进行了比较系统的研究，对降低驾驶室内噪声具有一定的理论依据和设计参考。
In this thesis, a relatively systematic study of noise prediction from low-frequency tractor cab has been done. It provides a certain theoretical basis for reducing cab noise.
本研究在地理信息系统集成了交通噪声预测模型的基础上，设计和开发了基于地理信息系统的城市道路交通噪声预测系统。
The research integrates the prediction of traffic noise into the geography information system, and designs and develops the urban road traffic noise prediction system which is based on the GIS.
首先对基于GIS的噪声预测模型计算、噪声冲击指数计算，以及数据库设计等关键技术问题进行了研究，然后选择了VB6。
Firstly, a research of the calculation of noise prediction model based on GIS, noise impact index, as well as the database design are conducted; Secondly, VB6.
目前交通噪声预测使用的FHWA模型在实际应用以人工方式来统计通过的车辆数和车型，人工成本高，统计值容易产生偏差。
Now the FHWA model used in traffic noise prediction get the number and type of vehicles by artificial way, the labor cost is high and the statistical value often not very accuracy.
通过实地监测，分析了某干道车流量、车速、车型的变化规律及其与道路噪声的相互关系，并对选择的交通噪声预测模型进行了精度检验。
Through field monitoring, the variation laws of road traffic flow, vehicle speed and vehicle type are analyzed, as well as the relationship between road noise and traffic condition.
并针对驾驶员耳旁噪声进行了实验研究，结果表明：基于神经网络的单一工况车内噪声预测模型，可在频域内很好地预测出特定点的车内噪声。
The experiment for the noise at the area around the driver' s ears is conducted, the results show that this model can predict very well the interior noise around particular point in frequency domain.
尽管在很多时间，它是在一种有序稳定的状态下运作，但是不时它会突然没预测地进入暴雪地噪声中。
Though much of the time it runs in an orderly and stable way, every now and again it suddenly and unpredictably lurches into a blizzard of noise.
他发现，这些预测反应(或电路)行为的程序惊人的相似，甚至噪声特性都相同。
He has found that those equations, which predict the reaction's (or circuit's) behavior, are astonishingly similar, even in their noise properties.
根据现场实测数据，对兰州地区铁路噪声进行了预测，并且通过实际测试验证了该模型的合理性。
According to the scene measured data, the prediction of Lanzhou area railway noise has been carried out and this model rationality has been confirmed through the actual test.
并进一步讨论了预测和噪声的关系。
And the relationship of prediction and noise is further discussed.
在此提出一种利用线性预测误差去除语音中的加性白噪声的方法。
It presents a new method on reducing additive white noise in speech signal using linear prediction error.
噪声载荷是一种高频、宽带随机载荷，在低循环疲劳寿命预测中被广泛采用的时域计数法很难直接利用。
Sonic loading is a high frequency, broadband random process. Basic cycle counting methods, which are prevalently used in time domain, are difficult to be applied.
噪声载荷是一种高频、宽带随机载荷，在低循环疲劳寿命预测中被广泛采用的时域计数法很难直接利用。
Sonic loading is a high frequency, broadband random process. Basic cycle counting methods, which are prevalently used in time domain, are difficult to be applied.
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