In order to eliminate the negative damped area a positive damping should be added or damping coefficient of the system should be enlarged. 通过增加正阻尼、增大系统阻尼系数等措施可以消除负阻尼区;
Damped least-squares method can work successfully at a relatively poor initial value, and it can overcome the recurrence difficulty caused by the singular coefficient matrix. 阻尼最小二乘法在较差的初值条件下能有效运行,并能克服系数矩阵奇异时的迭代困难。
In the paper, by using equivalent linearization technique, the response computation of a single_degree_of_freedom dry friction damped system with velocity_dependent variable coefficient of sliding friction under harmonic excitation is discussed. The amplitude_frequency equation is also derived. 研究了单自由度滑动摩擦系数随相对速度变化的干摩擦振动系统简谐激励响应计算问题,提出了等效线性化处理方法,并推导了相应的频响方程。
Development of the Instrument for Measurement of Magnetic-damped Coefficient and Sliding Friction Coefficient with Integrated Switch Hall Sensor 霍尔传感器法磁阻尼系数和动摩擦系数测定仪的研制
The Dynamic Testing Method of Viscous Damped Coefficient 粘性阻尼系数的动态测试法
The response computation of a two degree of freedom dry friction damped system with velocity dependent variable coefficient of sliding friction under harmonic excitation was discussed. 研究了两自由度滑动摩擦系数随相对速度变化的干摩擦振动系统简谐激励响应计算问题。