固有频率

The thesis studied the woodworking tension band saw blades by means of the vibration theories,made sure the relationship between tension force and inhesion frequency of its system.

应用振动理论，对经过适张处理后的木工带锯条进行研究，确定张紧力与系统固有频率之间的关系，提出将带锯条的振动简化为弦的振动与受拉伸的梁振动。

Based on a chosen normalized boundary equation, a new normalized boundary equation can be established such that the irregularity of the kernel of integral equations is overcame. Finally, natural frequency is obtained by the existence condition of nontrivial solution of the discrete algebraic equations derived from the integral equations.

边界方程有多种选择，在选定一种边界方程的基础上，可以通过建立一个新的边界方程来表示问题的边界，以克服积分核的奇异性；最后由积分方程的离散化方程组有非平凡解的条件，求得固有频率。

Jib structure of the modal analysis, the structure of the natural frequencies and the corresponding vibration mode.

对臂架结构进行模态分析，确定结构的固有频率和相应的主振型。

The influence of laminated core and winding on the natural frequencies and modal shapes of the stator are investigated.

预测电机的振动和噪声需准确计算电机定子结构的固有频率及定子的响应特性。

Exemplification shows that the method is effective for the analysis and calculation of the free frequency of cooling towers. It not only avoids the tedious process of limit element calculation, but also can supplement the experiment method.

通过示例证明，该方法对解决冷却塔固有频率分析计算行之有效，它既避免了有限单元法计算的烦琐过程，又可作为实验方法的补充。

The results show that the structure design is reasonable and the structural deformation and natural frequency can meet the requirement of the lithography.

仿真结果表明：结构设计合理，结构变形和固有频率均能满足光刻机的要求。

An analysis has been carried out upon the low ordered natural frequency of gear tooth by the use of finite element method.

运用有限元方法对轮齿的低阶固有频率进行了分析。

This paper discusses the statistics (mean value and standard deviation) of the structural natural frequencies.

本文讨论随机参数结构固有频率的统计特性：均值和标准差。

In this paper, the minimum excess principle and its method are used in dynamic analysis of variable section beam .

本文应用最小余能原理的理论和方法确定变截面杆的固有频率。

On the basis of FEM and modal analysis of the bracket system, a reasonable optimum model is built, which considers manufacturing constraints and mode control.

在保证结构质量不增加的前提下，利用拓扑优化技术实现了发动机排气系统固有频率的优化设计。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐