An in situ experiment was carried out to measure the vibration acceleration of the urban road,elevated road and buildings and analyzed from multi-aspects as: the acceleration time history,frequency spectrum and vibration level.
为了研究环境振动对建筑物的影响及其在结构中传播的规律性,对某市公路与高架路及其沿线建筑物进行了实测,并从加速度时程、频谱与振级多个方面进行分析可知:由城市公路、高架路引起的地面振动分别以5～25 Hz、5～45 Hz的低频振动为主,这种低频振动在土层中随着距离的增加而衰减,传入建筑结构中会随着楼层的增加而放大,并且会诱发建筑结构内部构件的高频振动;在多层建筑结构内部,竖向振动大于水平振动,水平垂桥向振动大于水平顺桥向振动。
Compared with vibration situation on different directions of various measuring points,established the statistical regression formula about vibration level in order to forecast the attenuation law of vibration aroused by the viaduct traffic.
为了研究高架路交通引起的环境振动实际情况及振动传播规律,通过对广州某高架桥环境振动进行现场实测,比较了各测点不同方向上振动情况,得出了预测高架路交通引起环境振动的振级统计回归公式,建立了桥墩—桩—土体ANSYS模型,模拟结果与实测结果符合较好。
At last, by establishing tunnel-soil-building 2D finite dynamic elements model, study on the rules of the vibration levels of the buildings wit
最后,建立隧道—土体—建筑物二维有限元模型,总结了建筑物的振级随各种参数变化的规律,为研究地铁附近建筑物的减振提供参考。
The vibrational energy levels of HF molecule and the weak bounded van der Waals molecules,Ne2 and Ar2,have been calculated by using Bspline basis expanding method.
用Ｂ样条函数展开方法计算了ＨＦ分子及范德瓦尔斯分子Ｎｅ２、Ａｒ２的振动能级，并与用其它方法所得结果进行了比较，给出了相互作用势具有排斥芯和吸引尾的情形下样条结点的选取方
The vibrational levels were obtained using the lanczos algorithm and discrete variable representation.
采用离散变量表象和Lanczos方法计算得到了C3-Ar体系的振动能级,计算结果表明,C3-Ar的CCSD(T)势能面支持64个振动束缚态。
The seat vibration level is important for evaluation of the machinery quality in the research and development(R&D) of the low noise machine.
机脚振动级是评价机械设备振动特性的一项重要指标,是低噪声机械设备研制和验收的重要检测项目。
This scheme is effective and vibration level of measuring point is less than acceptable value in ISO.
施工结束后进行现场测量振动加速度有效值及占优频率,计算的振动级VL低于ISO标准中建筑物内人体振动容许值,减振效果达到标准要求。
The Dunham Calculation of Highly-excited Vibrational Energy Levels for Triatomic Molecules;
三原子分子高激发振动能级Dunham计算
The smallest energy transitions are between rotational levels; the next smallest between vibrational levels.
在转动能级之间的能量跃迁最小，其次是振动能级之间的跃迁。
The rotational levels of the ground vibrational level may be depopulated by radiation.
基态振动能级的各转动能级的粒子数可能因幅射而减少。
Such photons will excite the higher vibrational levels of the OH molecule.
这种光子会激发OH分子的较高振动能级。
Effect on vibrational levels of H_2~+ by its approximate analytic wave function for the ground state
H_2~+基态近似解析波函数对振动能级影响的研究
Potential Energy Function and Vibrational Energy Levels for the Ground State X～3∑_g～- and the Excited State b～1∑_g～+ of O_2 Molecule;
氧分子基态和激发态的势能函数及振动能级研究
Study on Frequency & Amplitude Adjustment of Intelligent Vibratory Compactors;
智能振动压路机的无级调频调幅研究
The Energy-Level Gap of Coordinate-Momentum Cross Coupling Harmonic Oscillators
坐标-动量交叉耦合谐振子的能级间隔
Isotopic Shift of Rotational Level Bending Vibration State of Molecule H_2O~x(x=16,17,18);
H_2O~x(x=16,17,18)弯曲振动态转动能级的同位素位移
Computing Vibrtional and Vibrational-Rotational Energy Eigenvalues and Frank-Condon Factors of CO Molecule
CO分子的振动、振—转能级能量本征值和Frank-Condon因子的计算
THE RESEARCH OF VIBRATION FOR DYNAMIC COMPACTION CONSTRUCTION
不同能级强夯施工下地表振动衰减规律的探讨
Pavement Performance and Design Standard of Graded Broken Stone Based on Vibration Molding
基于振动成型的级配碎石路用性能及设计标准
Isolation Performance Analysis and Dynamic Modeling for Accurate Size-grading Vibrating Screen
粒度精确分级筛的动力学建模和隔振性能分析
Vibrating or capable of vibration.
振动性的或能振动的
A Study on High Vibrational Energy Spectra and Molecular Dissociation Energies for A~1∑_u~+ Electronic States of K_2Molecule;
K_2分子A~1∑_u~+电子态的高能级振动能谱和离解能的精确研究
On the High-lying Vibrational Energy Spectra and Molecular Dissociation Energies for the 3~1 Π Electronic States of NaK Molecule
NaK分子3~1 Π电子态的高能级振动能谱和离解能的理论研究
single stage voltage regulator
单级电磁振动式继电器
The Theoretic and Experimental Studies on the Highway Circular Culvert Under the Vibratory Roller s Action;
振动压路机作用下高等级公路中圆管涵动力性能理论与试验研究
