The multi-assumed-spring method is developed to solve the negative stiffness problem of softening structures.
针对软化结构的负刚度问题，提出了一种多维虚加弹簧法。
This paper deals with the vibration isolation principle of a system with a negative stiffness spring and the energy analysis for this system.
本文讨论含负刚度弹簧系统的隔振原理，并对这样的系统进行了能量分析。
Finally, the influences of the negative stiffness model on the behaviors such as strength, deformation and ductility of reinforced concrete frame structures un.
最后，通过实例数值模拟分析，重点讨论了负刚度模型对强震下钢筋混凝士框架结构的强度、变形和延性等方面特性的影响。
The methods of realization of nonlinear stiffness and applications of combined positive and negative stiffness in ultra-low frequency vibration isolation are analyzed.
分析了刚度非线性的实现方法及正负刚度并联技术在超低频垂直隔振系统中的应用。
A model for simplified second order analysis of the double resistance to lateral force system is built on the basis to transform second order effect into negative stiffness.
为简化双重抗侧力体系二阶分析，将结构的二阶效应转化为结构的负刚度，从而建立分析模型。
In this paper, the influence of post-ultimate negative stiffness stage on earthquake collapse response of reinforced concrete frame structures to a severe earthquake is studied.
本文研究了极限后负刚度段对钢筋混凝土框架结构地震倒塌反应的影响。
Paralleling negative stiffness can not only decrease the isolator's natural frequency, but also improve the damping characteristic and increase the internal resonant frequency of the isolator.
并联负刚度弹簧不但显著降低了隔振系统的固有频率，同时也改善了系统的阻尼特性，提高了隔振系统产生高频内共振的频率。
The principle of stiffness offset with the positive and negative stiffness parallel were introduced and through analysis the natural frequency and the vibration transmissibility can be reduced.
介绍正负刚度并联相消原理，通过分析可知应用该原理可以有效降低系统的固有频率，减小隔振传递率。
Pain, stiffness or swelling were reported in at least one joint by 50% of antibody-positive and 53% of antibody-negative subjects at the time of imaging.
在肺显像时，50%抗体呈阳性者和53%抗体呈阴性者表示至少有一处关节有疼痛、僵硬和肿胀。
After analyzed the effect of preload voltage and sweep voltage on the negative electrostatic spring stiffness, a method to dissociate mechanical stiffness from the system stiffness has been provided.
通过分析预载电压和扫频信号幅值对静电负刚度的影响，提出了从系统刚度中分离出挠性梁机械刚度的计算方法。
Products with ease cold therapy, pain relief, improvement of microcirculation role. For frozen shoulder joints caused by stinging, or dull pain, joint stiffness, flexion and extension negative.
产品具备冷敷理疗、缓解疼痛、改善微循环的作用。用于肩周炎引起的关节刺痛或钝痛，关节僵硬，屈伸不利。
Products with ease cold therapy, pain relief, improvement of microcirculation role. For frozen shoulder joints caused by stinging, or dull pain, joint stiffness, flexion and extension negative.
产品具备冷敷理疗、缓解疼痛、改善微循环的作用。用于肩周炎引起的关节刺痛或钝痛，关节僵硬，屈伸不利。
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