A series of formulae, which denote the kinematic parameters with the abstract design variable a , are derived according to the three-staged analysis method of the piston motion.

This paper decribes the design of 12. 7 mm regenerative liquid propellant gun and gives the experimental pressure curves of the liquid reservior and combustion chamber. An interior ballistic model including the coupling relation between the piston motion, liquid jet and the liquid inertia in the liquid reservior is presented.

This thesis introduces the establishment of dynamic differential equation of the piston motion through dynamic analysis on the response of liquid damper under the Gauss white noise excitation.

The relationship between the piston movement and the pressure of the accumulator was studied in this paper. The formulas of the impact energy and the frequency of the piston were established and the remaining terms were estimated for the purpose of correcting the energy formula.

The method of diagnose with experience for piston-knocking at cylinder is being introduced firstly in this paper, then we can get the result of relationship among piston-knocking at cylinder, structure parameter, revolutionary speed. Loading and viscosity of the lubricating oil by evaluating the equation of piston movement for CA1091'engine, So that, the favorable revolutionary speed of the engine which the piston-knocking at cylinder occurred, the sensor fixing position, loading and phase place would be diagnosed in term of theory.

Grouting pressure is the resource of grouting energy, and is also a key factor of controlling grouting quality. Grouting pressure is motive of sending cement gout into small holes of geological strata designed beforehand, the motive is commonly produced by piston movement of grouting pump, reasonable and scientific grouting needs to choose a most ideal pressure, which is controlled by adjustable valve in the pipe of return grout.

2AB + C is employed as a working reaction system in which only C, not A or B, is adsorbed. By using dynamic simulation software gPROMS, the influences of bed length, cycle length, piston moving velocity, product delivery velocity and basal pressure on reaction and separation efficiency are investigated. [

以 2A B +C为反应体系 ,其中C为易吸附组分 ,A、B为不吸附组分 ,利用动态模拟软件gPROMS模拟考察了反应器长度、周期长度、活塞运动速率、产品收集速率和基础压力对反应性能和分离性能的影响

This paper introduces the structural characteristics of SLG195 high speed diesel engine with large eccentric double crank connecting rod mechanism developed on the basis of S195 diesel engine and analyses emphatically the motional law of piston in the new type SLG195 diesel engine and its influences on working process of diesel engine.

ZTW-A-02 friction slice is made through slicing a machining cylinder liner into four parts. The cylinder liner is composed of a vat of gray cast iron HT 250, which has a weight of 325 kg and bears the geometrical dimensions of 572 mm external diameter,455 mm internal diameter and(740 mm) length respectively.

Self-similar nonstationary magnetohydrodynamic radiating gas flows caused by piston motion

Results are presented in this paper of an investigation of one-dimensional self-similar flows caused by piston motion in a hot gas mixture in which a detonation wave or combustion front is propagated.

The piston motion is explicitly included into the simulations by using a deforming mesh.

For an efficient operation with tuned piston motion, the design of facility and the comprehension of the physical phenomena in a FPST, a numerical simulation which can properly predicts the flow with actual losses is required.

The driver has a transparent window at the end of the compression tube to allow observation of piston motion.

Then the static deflection as a function of driving voltage, resonant frequency and transient response are analyzed with respect to the piston movement along Z-axis.

A new approach to mechanical simulation of lung behaviour: Pressure-controlled and time-related piston movement

Amplitude of the piston movement up and down was 1.5 cm, time of the movement 1 min.

Control of fuel injection and valve opening independent of piston movement appears to be necessary for HCCI engines to be viable.

Control of valve opening independent of piston movement appears to be highly desirable for such engines.

The gas motion is bounded, on the one hand, by a piston moving in accordance with an arbitrary law, and, on the other hand, by either a compression shock or a rarefaction wave propagating through the gas with given arbitrary parameters.

A class of exact solutions which, in particular, describes the flows arising from the short intense impact of a piston moving under gas pressure is obtained.

The possibility of the fragmentation of a liquid piston moving with variable acceleration, due to air jets forming on its free surface and penetrating inward, is established experimentally.

The mixture is formed as a result of the Rayleigh-Taylor instability development and the tur-bulent mixing in a very thin layer of a liquid at the end of a piston moving with deceleration.

We analyze a gasdynamical process in the stellar atmosphere that is driven by a "piston" moving with constant velocity in a weak gravitational field.

In this paper, we study the problem of the normal reflection of the plane shock wave on the piston. When the shock wave meets with the wall, the reflection phonomenon occurs immediately. Here we suppose that the wall is very thin, and we neglect its internal elastic and plastic waves, and thus consider it as a rigid piston. When the wall is shocked by the incident wave, it obtains an acceleration and moves. We study tne effect produced by the motion of the wall(piston)in a short time from the beginning. We use...

In this paper, we study the problem of the normal reflection of the plane shock wave on the piston. When the shock wave meets with the wall, the reflection phonomenon occurs immediately. Here we suppose that the wall is very thin, and we neglect its internal elastic and plastic waves, and thus consider it as a rigid piston. When the wall is shocked by the incident wave, it obtains an acceleration and moves. We study tne effect produced by the motion of the wall(piston)in a short time from the beginning. We use the auto-model solution (plane wave) of sharpened explosion for incident wave. We develop the physical quantities in the region of reflection into Taylot's series, and thus transform the system of partial differential equations obtained into a system of linear algebraic equations, and hence obtain the expressions of first approximation solution. Finally, we give two examples with which we analyze the effect produ ced by the motion of the wall in a short time from the beginning. The results obtained by calculation show that the magnitude of the etfect by the motion of the wall is determined by the non-dimensional initial acceleration of the wall: α_2(α_2=W_0t_1~2/R_0, where w_0 denotes the initial acceleration of the wall, R_0 the distance of tne center of explosion from the wall, t_1 the time that the wave needs to reach the wall from the beginning of explosion.) When |α_2| is very small (|α|≤0.5), the effect by the motion of the wall is very small.

The report is concerned with compression processes of free pistons after the opening of nozzle in a hypersonic gun tunnel. The nozzle flow will start at the time when the primary shock running ahead of the piston reaches the diaphram at the entrance of the nozzle and the piston starts to decelerate at the time when the shock reflected from the nozzle strikes it. The momentum equation for the motion of the piston and the continuity equation of mass of the gas are derived respectively, and the finite-difference...

The report is concerned with compression processes of free pistons after the opening of nozzle in a hypersonic gun tunnel. The nozzle flow will start at the time when the primary shock running ahead of the piston reaches the diaphram at the entrance of the nozzle and the piston starts to decelerate at the time when the shock reflected from the nozzle strikes it. The momentum equation for the motion of the piston and the continuity equation of mass of the gas are derived respectively, and the finite-difference calculations are carried out by computers.According to the results obtained, piston deceleration, overrush, rebound, oscillations, equillibrium running and peak pressure are discussed for various given initial conditions. It is shown that compression processes of free pistons after the opening of nozzle in a hypersonic gun tunnel are significantly different from those for a closed nozzle. The results are compared with those obtained with equilibrium technique based on closed nozzle and with some experimental data, and furnish important information for the operation of hypersonic gun tunnels.

A new method of calculation is presented to solve the energy equations of the cylinder wall, the piston wall and the gas within the clearance. The temperature gradients are obtained due to the fact that the temperatures and heat flows on the interfaces are continuous. As a result, the transfer heat can be calculated. Some calculations and experimental data are presented.