1) negative damping
负阻尼
1.
By use of complex torque analysis method,the electromagnetic torque of voltage source converter based HVDC(VSC-HVDC) system is approximately derived,the phenomena of electric damping decreasing or negative damping in AC/DC transmission system caused by fast power control of VSC-HVDC are quantitatively analyzed.
利用复数力矩分析方法近似推导了基于电压源换流器高压直流输电(voltage source converter HVDC,VSC-HVDC)系统的电磁力矩,定性分析了VSC-HVDC的快速功率控制可能会导致系统出现电气阻尼变弱或负阻尼现象。
2.
An explanation is made about the negative damping phenomenon observed in earlier simulation studies.
首先 利用Heffron-Phillips模型,从理论上对该问题进行了详细的分析,解释了以往仿真研究中发现的 负阻尼现象,并对其出现的规律进行了深入的分析和讨论。
2) negative-damping
负阻尼
1.
In this paper, an eliminating negative-damping excitation regulator is proposed, which is based on mathematic modelofcontrol object andmechanism of power-angle swing.
基于控制对象的数学模型和功角振荡的机理,提出了一种可消除负阻尼的励磁控制器,应用Simulink对其效果进行了仿真研究。
3) Negative damp
负阻尼
1.
Self-sustained oscillation characteristic of thermoacoustic stack is quantitatively proven based on thermodynamic theory to be negative damped oscillation.
从热动力学理论出发,定量地证明回热器的自激振荡特性为负阻尼振荡。
4) negative damping ratio
负阻尼
1.
A hydraulic expression of negative damping ratio of a tainter gate when a tangential vibration resulting from changing waterflow takes place on such a rigid body is introduced to define the negative damping ratio corresponding to the parametric resonance condition caused by the longitudinal constant force of compressional members and alternating force.
引入了弧形闸门小开度切向振动时因流量随时变化产生的水力负阻尼的表达式,定义了因压杆纵向恒定力及交变力引起的参数共振相应的负阻尼·对弧门振动的不同情况简化为两端铰支承和一端铰支一端弹性支承两种端点条件不同的压杆,并给出了相应的第一欧拉临界力的计算式·由动力方程给出了杆端纵向力的近似算式,根据实验资料给出了作用在支铰上的脉动压力的参考值,为讨论可能出现动力失稳的典型情况奠定了基础
5) negative damped area
负阻尼区
1.
The results show that the existence of a negative damped area is the fundamental reason for producing frictional self-excited vibrating.
结果表明:负阻尼区的存在是产生摩擦自激振动的根本原因。
6) negative resistance character
负阻尼特性
补充资料：负负
1.犹言惭愧﹑惭愧;对不起﹑对不起。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条