非线性能量阱(Nonlinear Energy Sink,简称NES)是一种被动的结构控制装置,具有较强的频率鲁棒性,能够在主体结构频率发生变化后依然保持较高的减振性能。轨道非线性能量阱(Track Nonlinear Energy Sink,简称轨道NES)通过附加质量块沿特...非线性能量阱(Nonlinear Energy Sink,简称NES)是一种被动的结构控制装置,具有较强的频率鲁棒性,能够在主体结构频率发生变化后依然保持较高的减振性能。轨道非线性能量阱(Track Nonlinear Energy Sink,简称轨道NES)通过附加质量块沿特殊设计的轨道运动产生非线性回复力,降低主体结构响应。经脉冲荷载优化得到的轨道NES在脉冲荷载作用下展现出优越的减振性能,但其地震响应控制性能尚待提高。对地震作用下轨道NES参数进行优化并分析轨道形状函数对其减震性能的影响,结果表明:使用轨道NES进行减震控制宜采用三阶多项式轨道形状函数。展开更多
Density function M06 method has been used to optimize the geometries of camptothecin-cytosine at 6-3 I＋G＊ basis. Finally, thirteen stabilized complexes have been obtained. Theories of atoms in molecules （AIM） and ...Density function M06 method has been used to optimize the geometries of camptothecin-cytosine at 6-3 I＋G＊ basis. Finally, thirteen stabilized complexes have been obtained. Theories of atoms in molecules （AIM） and natural bond orbital （NBO） have been utilized to investigate the hydrogen bonds involved in all the complexes. The interaction energies of all the complexes are corrected by basis set superposition error （BSSE）. By the analysis of complexes interaction energy, charge density, second- order interaction energies E（2）; it is indicated that the complex 6 is the most stable structure.展开更多
文摘非线性能量阱(Nonlinear Energy Sink,简称NES)是一种被动的结构控制装置,具有较强的频率鲁棒性,能够在主体结构频率发生变化后依然保持较高的减振性能。轨道非线性能量阱(Track Nonlinear Energy Sink,简称轨道NES)通过附加质量块沿特殊设计的轨道运动产生非线性回复力,降低主体结构响应。经脉冲荷载优化得到的轨道NES在脉冲荷载作用下展现出优越的减振性能,但其地震响应控制性能尚待提高。对地震作用下轨道NES参数进行优化并分析轨道形状函数对其减震性能的影响,结果表明:使用轨道NES进行减震控制宜采用三阶多项式轨道形状函数。
基金Funded by the Health Department Science Foundation of Sichuan(Grant No. 2011-236)
文摘Density function M06 method has been used to optimize the geometries of camptothecin-cytosine at 6-3 I＋G＊ basis. Finally, thirteen stabilized complexes have been obtained. Theories of atoms in molecules （AIM） and natural bond orbital （NBO） have been utilized to investigate the hydrogen bonds involved in all the complexes. The interaction energies of all the complexes are corrected by basis set superposition error （BSSE）. By the analysis of complexes interaction energy, charge density, second- order interaction energies E（2）; it is indicated that the complex 6 is the most stable structure.
