摘要
对形状记忆合金(SMA)耗能阻尼器力学性能试验得到的力-行程数据,按最大行程和频率进行分区拟合,建立了SMA阻尼器等效刚度和等效阻尼比等有关特征参数的经验计算公式,通过计算值与试验值的比较和误差分析,验证了所得公式的可靠性.最后文章分析了加载频率和最大行程对SMA阻尼器力学特征参数的影响规律.
Based on the data for the force and displacement of the shape memory alloy（SMA）damper,according to maximum displacement and frequency,these data are fitted in separated zones,an empirical formula between equivalent rigidity and equivalent damping ratio with many related parameters for SMA is established.By comparing the calculating values with the experimental values and error analyzing,the reliability of the formula is validated.The characteristic parameter between the regularity of the loading frequency and the largest displacement for SMA dampers is analyzed.
出处
《三峡大学学报（自然科学版）》
CAS
2007年第5期421-424,共4页
Journal of China Three Gorges University：Natural Sciences
基金
国家自然科学基金(50679039)
国家自然科学基金重大研究计划重点项目(90510017)
中国博士后科学基金(20060390832)
关键词
形状记忆合金
非线性
曲线拟合
等效阻尼比
shape memory alloys
nonlinearities
curve fitting
equivalent damping ratio
