Research on Solving Driven Moment of Flexible Arms of Concrete Pump Truck Based on Excited Force Optimization 混凝土臂泵车柔性臂架激振力优化研究
Ming Yao's enrollment has excited chinese& Chinese player could being NBA main force and core of tactics of the team and also being one of the best position in NBA. 姚明的入选NBA让中国人沸腾了&中国人也可以打NBA主力,中国人也可以成为球队的战术核心建队基石,中国也可以在NBA某个位置上成为最强之一。
Lee was very excited about the innovative design concept and appointed a task force within two hours to discuss how to materialize the tricky concept. 李对这个创新的设计理念感到非常高兴,并任命一个专责小组在两个小时内讨论出如何使这个设计实体化。
People's massive turnout, they said, even in a Madden-Soccer match the people may become excited and that make it lead to a confrontation between the men and the police force. 人们的情绪,想在欣赏劲爆足球一样高亢,并使得人民与警察之间难免产生冲突。
Excited because this is the debut of the Force India Formula One Team, and satisfied because I think that we have proved this weekend that we are a much-improved team. 兴奋是因为这是我们的第一次,爽是因为,我们证明了在这个周末的比赛中我们是一支非常有潜力的队伍。
The bonding properties are analysed. The relation between the H-F force and the MO's irreducible representation is presented, a method to decide the molecular geometric configuration variation of excited states by the frontier MO's H-F force is suggested. 用从头算法计算了乙烯和环丙烷的各分子轨道的H-F力,指出了H-F力与分子轨道不可约表示闻的关系,提出了用前线轨道的H-F力判断激发态分子构型畸变的方法。
Power Flow and Active-Passive Isolation of a Flexible System Excited by an Off-Center Force 偏心激励作用柔性主被动隔振系统功率流特性
According to the direct and converse piezoelectric property of piezoelectric materials, when the piezoelectric actuators bonded on structure is excited by a pulse with a certain voltage, the action force will be generated on the surface of the structure and wave motion will occur. 当对固结在结构上的压电元件施加一定电压的脉冲信号时,因压电材料的特性,会在结构的表面产生一作用力使得结构产生波动。
For the ground states and the lowest energy excited states of U 2 and Pu 2, their force constants, spectroscopic data and dissociation energies are obtained for the first time. 导出了基态和最低激发态的势能函数,计算出它们的力常数、光谱数据和离解能。
Studies on responses of structure excited by point force load and circle force load 点力和线力作用下的结构振动响应研究
In a sampling test, analyzed are the level of the excited vibration wave of component force and the range of the frequency of the electromagnetic noise of aero AC dynamos. 结合实例,分析了航空电机定转子激振力波阶次及电磁噪声的频率范围。
The tests& analysis indicate that the vibration is excited neither by the main engine's moment of inertia ( or force of inertia), nor by the main engine's rolling vibration. It is directly excited by the gas-exp loding pressure. 经试验和分析表明,这一振动既不是由主机惯性力(或力矩)所激发,也不是由主机机体的横摇振动所激发,而是由气体爆发压力直接激发的。
According to coupling principle and excited force of shafting system, a model of coupled tor-sional-axial forced vibration can be constructed. 根据刚度耦合原理,并考虑轴系强迫激励进而建立了扭纵耦合强迫振动模型。
Time-domain analysis for vibration and sound radiation of submerged spherical shell excited by force 水下弹性球壳被激振动和辐射声的时域特性研究
This paper deals with the possibility of determining, by spectrum analysis, the natural frequency of the rotating rotor blabes, according to the responses excited by the aerodynamic force itself. 本文探讨利用桨叶旋转时自身产生的气动激振力引起的桨叶响应、通过谱分析确定旋转桨叶固有频率的可能性;
For fixed damping and fixed excited frequency the motion of the beam under small amplitude of force is periodic, but becomes chaotic through period doubling bifurcation with increase of the force. 对固定的参数激励频率和阻尼,当参数激励幅值较小时梁的运动是周期的,但大幅值激励会使运动通过倍周期分岔变为混沌。
Bifurcation and Chaos Excited by Electromagnetism Force of Magnetism and Solid Coupling of Hydroelectric-Generator Stator System 水轮发电机定子磁固耦合电磁激发的分岔与混沌
A study on the vibration and noise radiation of composite plate excited by random force 有限复合阻尼结构板的随机激励振动与声辐射的研究
A new mechanical model used to study the longitudinal vibration property of the rod string is built, in which the top of the rod string moves with a base and the bottom is excited by a force. 在研究抽油杆柱纵向振动特性时,将抽油杆柱简化为上端固定于随悬点运动的基础之上、下端受液体负荷激励的力学模型。
Firstly, the quadratic velocity of every structure which composes the whole sonar platform area excited by driving force or sound pressure is computed by using structural finite element method ( FEM) software ANSYS. 采用有限元软件ANSYS求出声呐平台区结构在外力或声激励下,每部分结构的均方速度。
The Images of the Forced Oscillation Excited by a Non-sinusoidal Periodic Driving Force ── Fourth Application of Magnetic Pendulum 非正弦周期性外力作用下受迫振动的图像&磁力摆应用之四
In the paper, a panel excited by either point force load or circle force load is modeled to study its vibration responses. Based on the theoretical model, the responses of a simply supported flat panel under two types of excitations are predicted and analyzed. 建立了平板结构在点力载荷和线力载荷作用下振动响应的理论模型,应用该模型计算出简支平板在两种载荷作用下的振动响应,然后进行比较分析。
The experiment results indicate that the initial step of this photochemical reaction is an H abstraction from RH by excited SO_2 and that intermolecular actions of aerosols depend on van der waals force. 结果表明光化反应的第一步是H原子提取反应,光化学烟雾是依靠vanderwaals力将分子集合在一起的。
Sound radiation from a submerged elastic cylindrical shell excited by internal harmonic line force is considered. It is useful for understanding the mechanisms of sound radiation from submerged structure and verifying the Resonance Radiation Theory ( RRT). 研究了在内壁简谐法向线力激励下的水中弹性圆柱壳的振动和声辐射问题,这有助于深入认识水中结构的声辐射机理,验证水下结构共振声辐射理论。
Characteristics of power flow of the flexible system excited by an eccentric force and active control 偏心力作用下柔性系统的功率流特性及主动控制
The evaluation of sound radiation of the rectangular panel excited by a periodic force is treated by computer simulation with the FEM. 采用有限元法对矩形薄板在周期力的作用下作小振幅弯曲振动时对空间的声辐射进行了数值计算。
The optimal vibration control of structure excited by steady force 稳态强迫激励结构振动最优控制
Subharmonic bifurcation of the nonlinear forced vibration of symmetric and rectilinear orthotropic circular plates excited by a harmonic force q 0cos ( Ω 0t) is discussed. 研究了正交各向异性圆板在简谐激励q0cos(Ω0t)作用下,非线性受迫振动的亚谐分岔问题。
The paper also discusses that water surface and bottom surface and different position of excited force have influence on vibration and acoustic radiation characteristic of submerged cylindrical shell. 本文还探讨了水面和水底,以及不同激励力位置对水下圆柱壳振动声辐射特性的影响。