Watt's engine also used hot steam, not cold air, to force down the piston. 瓦特的发动机也是利用热空气而不是冷空气带动活塞。
This mixture passes into the cylinder, where it is exploded and exerts force on the piston. 这种混合物进入汽缸,在那里发生爆炸,从而对活塞施加力。
Real-Time Measuring Device and Test Research for Friction Force of Engine Piston Pair 发动机活塞组摩擦力实时测量装置及试验研究
By means of calculating combustion heat based on the molecular structure of ignition composition and the electron mobility number during burning process, the combustion and kinetic process of retracting actuator is studied and the retracting force of piston is estimated. 利用点火药分子结构与燃烧过程中的电子迁移数计算燃烧热的方法,分析了拔销器的燃烧、动力过程,估算出活塞杆缩回拉力。
Introduce calculation of phase angle for response of foundation power under action of simple harmonic perturbation force of crank piston type compressor, especially discuss phase angle calculation of level rotation power response by using vibration resolution method in detail. 对活塞压缩机基础在简谐扰力作用下的动力响应相位角的计算,特别是运用振型分解法对水平&回转振动动力响应相位角的计算进行了详细的讨论。
When the hydraulic oil of pressure goes through the chamber of spool valves, there is a axial flow force on the piston of spool valves due to the mutual conversion of kinetic energy between potential energy. 当具有压力能的液压油通过柱型阀时,由于阀腔内几何形状的变化,引起其动能和位能相互转换,并且在阀芯上产生流体轴向力。
The driving force of piston is ascertained with dynamics analysis, which lays a solid foundation in theory for designing of the whole of machine. 通过动力学的分析,确定了活塞的驱动力,为进一步设计整个机器提供了理论依据。
Gas force, general piston force and slider vertical force were calculated, and also friction and moment spectrum on bolt structure were given. 通过压缩机热力、动力计算,对螺纹联接结构受力状况进行了详尽的分析,计算了压缩机气缸气体力、综合活塞力、滑道支反力,最后求出了联接螺栓所受的摩擦力及弯矩谱。
When considering oil film force for piston assemble, piston-crankshaft system performances of an combustion engine used in a coal mine was investigated by the use of radial base function neural network ( RBFNN). 利用径向基神经网络(RBFNN)对油膜力作用下的矿用发动机活塞-轴系系统性能进行了研究。
A study of the influence of friction in measuring tangential force of piston rings 摩擦力对测量活塞环切向弹力影响的研究
The minimum lubrication oil film thickness and the friction force on piston skirt were calculated in the different combustion gas pressures. The establishment of model was based on hydrodynamic lubrication theory and piston dynamics. 根据流体动力润滑理论与活塞动力学方程建立的分析模型,依据发动机燃气压力的变化,计算了增压前后的活塞裙部最小润滑油膜厚度和摩擦力。
The Study of the Mathematical Model of the Control System of Driving Force for Piston Cylinder and its Application 柱塞缸驱动力控制系统数学模型的研究与应用
Fault Diagnosis of Force Signals of Piston Pins Using Energy Method 能量法对活塞销力信号的故障诊断
Analysis on the unbalanced force of rotary piston pump 滑阀泵不平衡力的分析
The CAT system can test pressures at inlet, outlet and cushion chambers, output force, piston displacement and shock acceleration of a pneumatic cylinder and plot corresponding result graphs. 此CAT系统可以测试气缸的压力、输出力、位移和振动加速度,并绘制相应的实验结果曲线。
Thus, how to reduce the effect of the axial flow force on the piston is the central task of this paper. 如何降低流体轴向力对阀芯的作用,成为本论文研究的中心任务。
By means of force analysis and calculate, the factors which affect the slanting plate force of axial piston pump are discussed, The analytic results provide the theoretic gist for the design of structural parameters partly. 本文通过对轴向柱塞泵的斜盘支承反力的分析计算,阐述了影响斜盘支承反力的因素,从而为轴向柱塞泵部分结构及参数的设计提供了一定的理论依据。
Only the accumulators for accelerating and pressurizing course provide enough pressure force can the piston meet the requirement of high-speed start-up and shearing. 提出必须确保加速蓄能器和加压蓄能器分别在活塞加速和加压过程中为活塞上腔提供足够的压力,才能使活塞顺利实现快速启动、高速剪切的基本要求。
In order to enhance wear-resisting performance of the internal combustion engine piston ring, matrix microstructure and radial elastic force of the piston ring, the matching between piston ring and cylinder were analyzed. 为提高内燃机活塞环的耐磨性能,分析了活塞环的基体组织、径向弹力及活塞环与气缸套的匹配状况对其耐磨性的影响。
Development of a system for measuring the variation of friction force between piston ring and cylinder liner 活塞环-缸套动态摩擦力测量系统设计
Combining the MR fluid flow model and the FEM model of MR valve, the relation curves of damping force vs. piston velocity of the MR damper were obtained. 将MR流体流动模型和流口有限元结果相结合,获得了不同MR流体行为指数和不同磁场作用下阻尼力随活塞速度的变化规律。
The spool valves are obtained, which is of simple structure and low production cost and can compensate the axial flow force on the piston, and this conclusion provide a basis for the structure design of the spool valves. 通过研究获得了加工简单、生产成本低、具有补偿阀内流体轴向力的结构,为柱型阀内的结构设计提供了一定的参考依据。
Experimental Research on the Characteristics of Instantaneous Friction Force of Engine Piston Assembly 发动机活塞组瞬态摩擦力特性的实验研究
The pneumatic system is a nonlinear time-variant system because of the compressibility of air, the air mass flow rate through the valve, the friction force between the piston and the cylinder, etc. 由于气体具有压缩性、气体通过阀口流量的非线性和气缸存在摩擦力等原因,气动系统实际上属于非线性时变系统。
The analysis shows that the tilt angle of swash plate 、 piston diameter and cylinder speed has the bigger influence to the force of piston. 分析结果表明,斜盘倾角、柱塞直径和缸体转速对柱塞所受作用力的影响较大。
The stress and deformation of piston under the action of the mechanical and thermal loads and the effect of thermo-mechanical coupling are analyzed, and the side thrust force of piston skirt is taking into consideration during analysis. 完成了活塞在机械载荷与热载荷及热力耦合作用下的应力与变形分析,并考虑了活塞裙部侧推力的影响。
Searching relevant documents, conducting force analysis of piston, determined the boundary conditions for finite element analysis of the piston;( 2) Establishing high accuracy finite element model of the piston. 查找相关文献,对活塞进行受力分析,确定了活塞有限元分析的边界条件;(2)活塞高精度有限元模型的建立。
The first method is based on the flow equation of one-dimensional parallel plate laminar, to solve the damping force as the piston changes speed under different current. 第一种方法,建立磁流变阻尼器的平行板一维层流的流动方程,求出不同电流下,阻尼力随活塞速度的变化规律。
As one of the most important parts, connecting rod endures the power thrusts from piston pin with its magnitude and direction change periodically, the inertia force caused by swing of connecting rod and the reciprocating inertia force of piston group. 作为发动机重要零部件之一,连杆在工作过程中承受着大小和方向都呈现周期性变化的活塞销传来的气体作用力、本身摆动造成的连杆惯性力以及活塞组的往复惯性力。