如何提高测试精度是主轴静刚度测试中的难点。
It's difficult to improve the precision of the spindle static stiffness test.
本文介绍采用有限元法计算车床床身的静刚度。
In this paper, using the finite element method, we completed the computation of static rigidity for a lathe bed.
本文介绍采用有限元法计算车床床身的静刚度。
A flexible finite element stiffness model of lathe bed is presented and analysed.
本文介绍采用有限元法计算车床床身的静刚度。
本文采用力学中的影响系数法计算主轴部件的静刚度。
In this paper the method of influence coefficient in mechanics is used to calculate the static rigidity of spindle parts.
对单自由度系统，其静刚度与固有频率的平方有正比关系。
For system of single freedom-degree, the relationship of its static stiffness and square of natural frequency is direct ratio.
本文利用可靠性理论对机床主轴系统静刚度进行了可靠性计算。
This paper researches on the reliability evaluation of stat - IC stiffness of spindle system of machine tool.
静刚度是机床性能的重要指标，有必要在设计阶段对其进行预估。
The static rigidity is an important index of machine tool's performance, which should be forecasted in the planning phase.
经优选设计后，电主轴的一阶临界转速和主轴端静刚度均有较大幅度的提高。
The first order critical speed and static stiffness of the spindle increases greatly after optimization.
采用分段联解法求解层状地基中单桩的抗压静刚度，获得刚度的解析表达式。
Adopting the solution of subsection and combination (SSC), the analytic expression of rigidity of single pile in layered soils is deduced.
通过变加速方法降低惯性力，提高了机床的静刚度，改善了机床的动力学性能。
Then the inertia force is reduced by the inconstant acceleration, so that the static rigidity of the machine is raised and the kinetic performance of the machine is improved.
利用有限元分析软件ANSYS，对并联机床的主要部件进行静刚度有限元分析。
Make use of ANSYS software, Investigations are made on the stiffness analysis of the main machine replacement parts for parallel machine tool.
为了研究该机床静刚度的变化情况，计算同一水平面或竖直面内的静刚度变化率。
In order to study the variation of the stiffness, the variance ratio of the stiffness within the same horizontal or vertical plane is computed.
柔性微机器人要求具有很高的定位精度，而其静刚度在很大程度上决定着这一指标。
The compliant micromanipulator requires very high positioning accuracy, which mainly depends on its static stiffness.
理论分析及试验研究结果表明，采用多排环形供气孔后，轴承的静刚度性能有了显著提高。
The results of the theoretical analysis and the experimental research indicate that adopting multi rows supply holes can enhance the stiffness performance of the thrust bearing.
该静刚度矩阵来自抛物线索的解析解，具有很高的精度，明显比悬链线索单元简化了许多。
This static cable element stiffness matrix has a high accuracy since it comes from the analytic solution of a parabolic cable.
提出了静刚度测试系统的总体设计方案，并对该系统主要软件和硬件部分进行了说明与开发。
It presented the whole design method of the static stiffness testing system. The main software and hardware of the system were illustrated and developed.
针对典型的串联和并联机构，建立了动力学模型。分析了在外力输入时机构的静刚度和动刚度。
Dynamics model of typical serial and parallel mechanisms were presented, which could be used to analyzed the static and dynamic stiffness.
对船舶轴系进行冲击响应计算，通常在轴架支承处采用弹性边界处理，取一个近似的支承静刚度。
The support brackets are simulated by springs when calculating shock response of a ship shaft system, and the stiffness of spring usually takes an approximate value.
在得到比较精确的地基静刚度后，本文通过第四章中的简化算法求解了地基与结构的动力相互作用。
After getting the relatively accurate static stiffness of groundsill, the soil-frame structure dynamics interaction is studied by the simplified method in the 4th chapter.
研究表明，磁场的作用在很大程度上提高工艺系统的静刚度，并且增加系统阻尼，减小工艺系统振动。
The research result showed that the rigidity is improved and vibration of technology system is weakened by magnetic field.
文章以BKX - I型变轴数控机床为研究对象，利用矩阵结构分析法建立了变轴数控机床的静刚度计算模型。
In this paper, by using the method of matrix structural analysis, the static stiffness model are derived from researching BKX-I varied-axis NC machine tool.
根据轴端挠度计算公式讨论了刚度与被加工孔精度之间的关系，得出了几个结论，提出了提高主轴静刚度的途径。
The relation between rigidity and processing accuracy is discussed and a conclusion is drawn to enhance the net rigidity of the stiff shaft.
研究结果表明：轮胎的动刚度不是常数，它随着垂直载荷、充气压力的增加而增大；滚动时的动刚度不同于静刚度。
It has been shown that the tire dynamic stiffness is not a constant, which increases with the vertical load and inflation pressure, and it is different from the static one.
51环境中，用弹簧单元来模拟滑块与直线导轨的接触刚度，建立了机床的有限元模型，并对其静刚度进行了分析。
51 environment, the contacting rigidity between slide block and linear guideway was simulated with spring elements, the finite element model of the machine tool was set up, and the static rigid.
由于有限元方法的应用，使得本文所提出的计算地基的静刚度的方法比近似计算方法的适用范围要广，同时也要精确一些。
Because of the adoption of FEM, the proposed method to calculate the static stiffness of groundsill is suited and accurate more than the approximate method.
通过将该系统应用于某工程实例，并将该实例的理论计算门架静刚度值与有限元分析值进行比较，验证了该系统的可行性和计算结果的可参考性。
The feasibility and the credibility of this system are proved, by using this system to a case and comparing the finite element analysis results and the theoretical results of the case.
通过将该系统应用于某工程实例，并将该实例的理论计算门架静刚度值与有限元分析值进行比较，验证了该系统的可行性和计算结果的可参考性。
The feasibility and the credibility of this system are proved, by using this system to a case and comparing the finite element analysis results and the theoretical results of the case.
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