| 1. | A fourth model may be tested for flutter speed .
第四个模型可用来进行颤振试验。 |
| 2. | The feasibility of the technique is examined by using compute simulation and flutter testing of aeroelastic models in low - speed wind tunnel
经数字仿真及气弹模型低速风洞颤振试验数据验证，取得了满意的效果。 |
| 3. | Flutter boundary prediction ( fbp ) based upon sub - critical turbulence response analysis is an important research work in flutter test field of aircraft
基于飞机结构亚临界响应分析的颤振边界预测( fbp )技术是颤振试验研究的重要课题。 |
| 4. | Especially , the technique proposed here can be expanded to the flutter test with variable speed . the related software is developed on labview for windows
并通过数值仿真和某型飞机气弹模型低速风洞颤振试验验证了方案的有效性、可靠性和工程实用性。 |
| 5. | In this paper , according to the characters and processing requirements of flutter test data , based on the general theory of wavelet analysis , a set of laplace wavelets are introduced
本文根据颤振试验信号的基本特征和处理要求，在对小波一般理论研究的基础上，引入了一种适用于颤振试验信号处理( ftdp )的小波? ? laplace小波。 |
| 6. | At last the properties of the laplace wavelet algorithm was demonstrated by digital simulation signal and wind tunnel flutter test signal . it comes the result that correlation filtering using laplace is a very promising and feasible approach
本文算法是采用matlab语言实现的，通过数字仿真和实际的风洞颤振试验信号，对方法的数值特性和应用情况进行了考核和验证。 |
| 7. | In this thesis , the theories of joint time frequency analysis and image processing are combined , and a new fbp method called stf is proposed . the characteristics of digital and application are investigated for stf
本文根据颤振试验的原理和观测信号特点，综合运用联合时频分析和图像边缘识别理论，提出了一种颤振边界预测的新概念? ?时频共振( stf ) ，并完成了stf方法和算法的研究。 |
| 8. | The theory analysis and method principle are presented the characteristics of the two methods are studied by computer numerical simulation . the results show that both the methods are reasonable and feasible . focused on the features and requirements of flutter test data processing , the methods presented here are used to pickup the major information as a pre - processing technique the application scheme is brought out for flutter boundary prediction based on subcritica
根据颤振试验的原理和观测信号特点，本文将所提出的两种时频域滤波算法引入到了飞机结构亚临界响应分析的颤振边界预测( fbp )研究当中，给出了一种新的颤振边界预测方案，即通过联合时频分析与时频域滤波提取有效信号再进行模态参数提取与颤振边界预测。 |
| 9. | Focused on the nonstationary features and analysis requirements of flutter test data , the application scheme is brought forward for flutter signal processing . by using computer simulation and flutter test of low - speed wind - tunnel of some aeroelastical modes , the characteristics of the scheme are investigated
本文基于颤振试验信号的非平稳特点与分析需求，应用自适应时频分析技术给出并实现了两种新的颤振信号处理方案，重点研究了适用于连续变速颤振试验的颤振边界预测问题。 |
