查询词典 stiffness

Aiming at the limitations of the way to increase the static stiffness of the boring bar ,this paper adopts a novel thinking way that aggrandizes the dynamic stiffness of the boring bar to design a bar with a vibration absorption system in the boring bar .

针对一般方法增加深孔加工镗刀刀杆静刚度的局限性，采用了一种新颖的增加刀杆动刚度的思维方法，对内藏式减振刀杆进行了设计。

According to the method, model dimension is contracted to five by the way of selecting the unit in which amount of I/K is m inimal. Then sensitivity of frequency to stiffness is calculated. After the diff erence between measured frequency and calculated frequency have been got, the ad justed amount of stiffness is calculated by the using of the sensitivity and the frequency difference.

该方法按照I/K最小优先合并原则，将轴系模型自由度数缩聚为5，分析该模型4个刚度对前4阶频率的敏感度，算出实测的前4阶频率和模型计算频率之间的差值，利用敏感度和频率差值计算出刚度的调整量。

The effect of the primary longitudinal and lateral stiffness on the yawing of independent wheels is researched,and the reasonable range of values of the primary horizontal stiffness is obtained.

研究了一系纵向和横向刚度对轮对摇头振动的影响，得出了一系水平刚度的合理取值范围。

Railway track ; crushed stone ballast ; dynamic stiffness ; damp ; track stiffness ; LabVIEW

铁路轨道；碎石道碴；动刚度；阻尼；轨道刚度； LabVIEW

The machine tool should be of good stiffness and of good dynamic stability. Its lathe bed should be of good stiffness and of large volume. Advanced international technology should be adopted to ensure enough static, dynamic, heat

的结构采用刚性和大体积的床身，采用世界先进技术，保证有足够的静态、动态、热稳态刚度和精度；保证系统具有良好的动态品质，所选的伺服系统执行元件精度高、可靠性好、抗干扰能力强、响应速度快。

The machine tool should be of good stiffness and of good dynamic stability. Its lathe bed should be of good stiffness and of large volume. Advanced international technology should be adopted to ensure enough static, dynamic, heat

机床的结构采用刚性和大体积的床身，采用世界先进技术，保证有足够的静态、动态、热稳态刚度和精度；保证系统具有良好的动态品质，所选的伺服系统执行元件精度高、可靠性好、抗干扰能力强、响应速度快。

Its lathe bed should be of good stiffness and of large volume. Advanced international technology should be adopted to ensure enough static, dynamic, heat steady-state stiffness and accuracy; to ensure excellent dynamic

机床的结构采用刚性和大体积的床身，采用世界先进技术，保证有足够的静态、动态、热稳态刚度和精度；保证系统具有良好的动态品质，所选的伺服系统执行元件精度高、可靠性好、抗干扰能力强、响应速度快。

In this paper,two experimental methods had been adopted to verify the correctness and practicality of the shape meter method:one is to roll aluminum plate and calculate the shape stiffness of mill and rolled piece,then survey aluminum plate crown to verify shape stiffness equation ;the other is to calculate survey data off line of hot continuous roll.

采用两种实验方式验证了板形计法的正确性和实用性，其一是通过轧铝板实验，计算轧机板形刚度和轧件板形刚度，由实测铝板凸度验证板形刚度方程；其二是由CVC板形控制热连轧机实测数据，用离线计算自适应系数的方法验证板形测控数学模

The formulation of design sensitivity of natural fnequencies and frequency response function is derived with respect to design parameters induding stiffness of shafts, average gear meshing stiffness, damping constant and inertia of gears etc.

推导了系统扭振固有频率及频响函数相对于设计参数的灵敏度计算公式，这些设计参数可以是轴的扭转刚度、齿轮平均啮合刚度、阻尼及齿轮转动惯量等。

The current and displacement stiffness are analysed toward radial magnetic bearing and thrust magnetic bearing with differential driving mode. The effects of current and displacement stiffness on AMB system are studied in order to ensure it stable operation.

以实际应用的电磁径向轴承和推力轴承为研究对象，从理论上详细分析差动激磁方式作用下的位移刚度和电流刚度的特性，探讨位移刚度和电流刚度对系统性能的影响。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。