The variation of natural frequency and damping ratio with rotational speed of rotating machines was investigated. The natural frequencies corresponding to rotational degrees of freedom were found to be equal at low speed. At high speed of rotor the frequencies were found to deviate but the damping ...
A dynamic design method for natural frequencies of torsional vibration of rotor system based on sensitivity analysis is presented. The sensitivities of natural frequency of torsional vibration to structure parameters of rotor system are obtained by means of the theory of sensitivity. After calculated ...
英文: By analysing some different types of isolating configurations, the relations between the natural frequency of rotational vibration and that of the linear vibration have been found. 中文: 通过对几种不同的隔振形式的分析,得到了扭转振动的固有频率与线性振动的固有频率之间的关系。 更详细... 英...
16.The results showed that the mount spacing can be varied to adjust the natural frequency of the rotational mode.结果说明:改变隔振元件的间距能调整扭转振动的固有频率的大小。 17.The frequency associated with the first mode is sometimes called the fundamental frequency.和第一振模相联系的频率有时叫...
the natural frequencies of the system-there is one for each degree of freedom. These are also known as the modal frequencies; 2. the damping at each natural frequency (modal damping); 3. the spatial distribution of displacement vibration amplitude at each natural frequency (the mode shape). ...
multi-step beam; exact solution; natural frequency; mode shape. Address Hsien-Yuan Lin: Dept. of Mechanical Engineering, Cheng Shiu University, Kaohsiung 833, Taiwan, Republic of ChinaTechno Press Services Submit your paper Search Journal Subscription Quick Search Techno...
14.The results showed that the mount spacing can be varied to adjust the natural frequency of the rotational mode.结果说明:改变隔振元件的间距能调整扭转振动的固有频率的大小。 15.The vibrator and frame are connected and fixed up and down with the buffer by six groups of soft rubber.振动部与...
aVertical and transverse resonance of the bearing support structures at rotational frequency or multiples of the natural frequencies associated with turbine rotation and low frequencies shall be avoided 轴承座固有频率的结构以旋转的频率或倍数的垂直和横向共鸣与涡轮自转和低频率相关将被避免 [translate] ...
A natural expression is referred to the behavior of certain natural phenomena (radioactive decay, charging-discharging a capacitor, frequency response, etc.) being dependent on the functions of e, 3. Common Logarithm: This is a logarithm to the base of 10, Y=log10(X), and it can be ...
The discovery of the first interstellar object passing through the Solar System, 1I/2017 U1 (‘Oumuamua), provoked intense and continuing interest from the scientific community and the general public. The faintness of ‘Oumuamua, together with the limited time window within which observations were ...