硬弹簧

本文介绍了微扰法在硬弹簧系统中的应用。

This paper introduces the application of the means of perturbation in hard spring system .

得到了主动隔振问题的有关结果对于非线性硬弹簧系统（α0），随着非线性项系数增大，共振的振幅虽然减小，但传递率增大，故隔振效果较差；

Some useful results about active vibration isolation are obtained as follows . For the hard spring nonlinear system (α 0 ), as the coefficients of nonlinear items increase the transmissibility of displacement increases , the effect of vibration isolation is quite bad .

作为例子，给出了这套系统测得的Si谐振梁的非线性强迫振动（硬弹簧特性）在谐振点附近的从低频向高频扫描的幅频和相频曲线。

The amplitude and phase response curvature of the nonlinear forced vibration of a Si beam near resonant point as an example are given . In this example , the system sweeps from low frequency to high frequency .

假设超晶格的锯齿形沟道对粒子的作用可等效为形状相似的周期调制，引入正弦平方势，并在小振幅近似下，把粒子运动方程化为具有硬弹簧特性的Duffing方程。

It is assumed that a periodic modulation of the superlattice is equivalent to its saw-toothed channel . In the small amplitude approximation , the particle motion equation is reduced to the Duffing equation with a hard-spring property by using sine-squared potential .

硬弹簧滑移体系的随机响应研究

Study for the random responses of sliding systems with hard springs

这说明了什么，一个硬弹簧？

What does that mean , a stiff spring ?

可控淬硬弹簧钢的开发与应用

Development and Application of Controllable Hardening Spring Steel

其幅频响应曲线表明，当缓冲簧间隙适当时，系统非线性特征十分明显，相当于一种缓冲器的趋硬弹簧的作用。

The amplitude-frequency curves indicate that when the buffer spring clearance is appropriate , the nonlinear characteristics are very obvious and the suspension system works as a hardening spring .

讨论了当控制器参数改变时，系统表现出软/硬弹簧特性；

With the altering of the PID controller 's parameters , the typical nonlinear phenomena such as softening / hardening spring characteristic , jumps of the resonance curve can be observed and analyzed .

基于方程差的均方最小准则，探讨了硬弹簧杜芬系统高斯白噪声作用稳态位移响应的线性与立方恢复力等效模型的适用性。

Based on the criterion for minimizing the mean square of equation difference , the applicability of the equivalent models with linear or cubic restoring force for the steady-state displacement response of hardening spring Duffing systems , subjected to Gaussian white noise , was approached .

利用等效线性化方法推导了具有渐硬非线性复位弹簧的滑动系统的高斯白噪声激励稳态随机响应概率分布的解析解。

The analytic solutions of the probability density of the steady state responses of Coulomb sliding systems with gradually strong springs to Gaussian white noise are derived .

中、高珠光体碳钢由于其高强度、高硬度、耐磨性和抗疲劳性能好等特点，广泛应用于制造轨钢、型钢、硬线、弹簧钢等。

Medium-high carbon pearlitic steels are widely used to manufacture rail steels 、 section steels 、 hard wire 、 spring steels and so on because of their high strength , high hardness 、 good wear-resistant quality and fatigue resistance .

大方坯连铸机主要浇铸优质钢和合金钢，如重轨钢、硬线钢、弹簧钢、轴承钢、合金结构钢等重点品种。

A bloom continuous Casting machine main cast quality steel and alloy steel , such as heavy rail steel , hard-line steel , spring steel , bearing steel , alloy structural steel , and other key species .