speed-stiffness 速度刚性
But it has main key problems such as long response time, low speed stiffness, imperfect control performance and efficiency because "of. it includes inverter and electromotor. The main research contents are as follows.
但是，由于大功率大惯性变频泵控马达调速系统包括了变频器和电机环节，使得整个调速系统存在响应慢、速度刚性低、控制特性差及效率等主要难点问题。
参考来源 - 变频泵控马达调速及补偿特性的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
It was concluded that the vertical dynamic stiffness and damp decreased as the running speed of the tire increased.
得出了随着轮胎滚动速度的增大，轮胎的垂直动态刚度和阻尼逐渐减小的结论。
The transverse stiffness of medium-span railway bridge becomes insufficient and its transverse vibration becomes larger commonly under the raised speed freight train.
中等跨度铁路桥梁在提速货车作用下，普遍出现横向刚度不足，横向振动超限问题，严重影响了运营安全和提速计划的顺利实施。
A-operator method (AOM) is used to study the influence of the speed ratio and time varying meshing stiffness on rattling threshold speed of the gear system.
用算符分解算法(AOM)得到了系统的近似解析解，并研究了传动比和时变啮合刚度对拍击门槛转速的影响。
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