| 1. | The mathematical mod els based on the assumed modes method and a dosed loop velocity feed back control law are developed to describe the fiexural vibration dynamic behaviors
引入速度负反馈形成闭环控制，对被动控制和主被动控制的控制效果进行了分析比较。 |
| 2. | The mathematical models based on the assumed - modes method and a closed loop velocity feed - back control law are developed to describe the flexural vibration dynamic behaviors
引入速度负反馈形成闭环控制，对被动控制和主被动控制的控制效果进行了分析比较。 |
| 3. | The torsional vibrations dynamic model of corrugating machine system was established utilizing the transition matrix method to solves the dynamic equation and gets natural frequencies and circular frequencies of the torsional vibration
摘要利用传递矩阵建模方法，建立了瓦楞机系统扭转振动的动力学模型，进行了动力学方程求解，得到了系统扭转振动的固有频率和圆频率。 |
| 4. | Using theory of strength of track structure and vehicle - track coupling vibration dynamic model , we analyze the effects the different thickness of ballast act on relevant track structure parts and deduce the rational thickness of ballast
本文应用轨道结构强度计算理论及车辆轨道耦合振动动力学仿真计算模型，分析了不同道床厚度对相关轨道结构部件的影响，得出了合理道床厚度的建议值。 |
| 5. | In accordance with dynamic characteristics of swing movable teeth drive , the torsional vibration dynamic model of swing movable teeth drive is developed and the vibration equation of the vibration system is established for the first time
针对摆动活齿传动机构的动力学特点，首次建立了摆动活齿传动系统的扭转振动动力学模型，导出了系统扭转振动的动力学方程，并对系统动力学响应进行了求解。 |
| 6. | This paper applies the theory of metallic material acoustics and internal friction , the base of vibration dynamics and metallic dynamics to analyze the testing data . the result indicates the relative error is below 0 . 5 % . the demands of the design are satisfied
本文利用金属材料声学内耗理论、振动力学基础、金属动力学理论对实体测试结果进行综合分析，结果表明测量的相对误差小于0 . 5 ，达到了设计要求。 |
| 7. | The design methods , such as the theory of mechanism dynamic design , the finite element method and the theory of fuzzy reliability etc , are introduced to study the vibration and structural parameters optimization design of the swing movable teeth drive system . the dissertation includes the following six aspects : a ) , the torsional vibration dynamic model of swing movable teeth transmission system ; b ) . the torsional and flexural vibrations dynamic analyzing model of swing movable teeth drive ; c )
研究的内容包括以下六个方面： a )摆动活齿减速器传动系统扭转振动的动力学建模； b )摆动活齿减速器传动系统弯、扭耦合振动的动力学分析建模； c )摆动活齿减速器箱体振动的有限元模态分析； d )摆动活齿减速器高速轴的抗共振模糊可靠性设计； e )结构参数对活齿传动啮合刚度的影响； f )摆动活齿传动的模糊可靠性优化设计。 |
