In order to research simulation of train operation and movement process, and optimization on train control scheme, based on works relative, the paper builds a multi-objective train operation and movement simulation model and algorithm by build multi-particle train model, design railway partition model and algorithm, make and optimize train movement process model etc. Ground on the simulation model, train operation simulation system is built up.

The conventional model which has been generally used for seismic response analysis is equivalent multi-particle shear vibration system,but this system can not take into account the strength and the stiffness beam-to-column ratio,the deformation of joint region,additional axial force and plastic hinge of the beam influence on seismic response.

In order to optimize the single-particle model of urban mass transit traction calculation system and make traction calculation result more accurate, the optimized multi-particle simulation model was built up.

With the analysis of the influent factors of the parameter, useful conclusions was given, which can help to understand the seismic response of multi-mass elastic system.

The conventional model which has been generally used for seismic response analysis is equivalent multi-mass shear vibration system, but this model can not consider that the strength and the stiffness ratio of the beam-to-column, the deformation of joint panel, additional axial force and plastic hinge in the middle of the beam influence on seismic response.

, has been obtained in the test. (2) Equivalent rigidity theory is put forward for calculating simply dynamic characteristic of tube structures, in which the structure is simplified as a multi-mass system with flexural and shear deformation to calculate the equivalent flexural and shear rigidity.

The computation results of the optimized traction calculation model and single-particle model show that the average velocity is raised by(5%~)20%,the start velocity is decreased by 5%~25% in pulling into station process,the energy consumption is decreased by 5%~20%,the model is feasible. 6 tabs,8 figs,11 refs.

The ionization and drift characteristics of electrons in argon are simulated by the method of multi-particle dynamics.

Furthermore, both schemes achieve full efficiency and there is no need to utilize multi-particle entanglement, which is relatively more difficult to generate.

Segregation of particles during the filling of a vessel was investigated for mixtures of multi-particle sizes.

In this study, we consider a multi-link system as a multi-particle movement system and each of the particles are connected by a kind of spring damper model as an imitation of a link.

I generalize the construction to arbitrary dynamical multi-particle correlation functions.

This is applied in a study of positive-energy multi-mass fields.

It is found that in general the multi-mass formalism confers no improved convergence; although convergent theories can be constructed in principle, it is not possible to do so in practice.

In the paper the continuous model of a multi-mass drive system is considered.

Dynamic analysis of a multi-mass discrete-continuous layered system

In the paper a one-dimensional discrete-continuous multi-mass layered system subject to an axial indirect kinematic excitation using the wave method is considered.

This paper presents a new type of shear model applicable for nonlinear seismic response analysis of multi-storied structure with its story members having different restoring force characteristic relationships. Three sorts of such curves are adopted to establish a calculation approach and a relevant computer program has been developed.Two numerical examples are given in the paper.

According to the data of the ambient measurements, the deformation curves of buildings under horizontal loads and the rule of earthquake damage, it can been shown that the floor slab possess only limited rigidity in horizontal direction. The degree and the location of structural damages are closely related to the higher vibration modes and the limited rigidity cf the floor slab of the building. It means that the mathematical model of the multi-degree system with single vertical member is not good for seismic...

According to the data of the ambient measurements, the deformation curves of buildings under horizontal loads and the rule of earthquake damage, it can been shown that the floor slab possess only limited rigidity in horizontal direction. The degree and the location of structural damages are closely related to the higher vibration modes and the limited rigidity cf the floor slab of the building. It means that the mathematical model of the multi-degree system with single vertical member is not good for seismic analysis.In this paper, the mathematical model of spatial structure taking account of slab deformation is considered. By means of solving the natural vibration equation and the theory of the response spectrum, the combined stresses of members due to the earthquake responses of several higher modes are obtained. It shows that the results thus obtained agree better with the general phenomena of earthquake damage

It has been verified by the ambient vibration modes, the measurements of the horizontal deflection of the floor slabs and the earthquake damages of the multistory building, that the horizontal rigidity of floor slab is not unlimited. In this paper, a spatial structural mechanic model in consideration of the horizontal deformation of floor slabs is established and a grid multiple mass system is used in calculation. Through the seismic analysis of 160 highrise buildings according to the computing sketch metioned,...

It has been verified by the ambient vibration modes, the measurements of the horizontal deflection of the floor slabs and the earthquake damages of the multistory building, that the horizontal rigidity of floor slab is not unlimited. In this paper, a spatial structural mechanic model in consideration of the horizontal deformation of floor slabs is established and a grid multiple mass system is used in calculation. Through the seismic analysis of 160 highrise buildings according to the computing sketch metioned, the difference between the results of elastic floor slab and rigid floor slab are obtained, the modifying coefficients are then listed in the table. Thus the computation of buildings with elastic floor slabs is made simplified just by using a slight modification of the results obtained from buildings with rigid floor slab assumption.