3Introducing application background of cross country vehicle-hydraulic bumper and its structural features and principle of work; studying characteristics of hydraulic bumper, including thin wall-orifice flow, spherical surface-slit flow and oil compressibility, sequentially gaining the overall characteristic of hydraulic bumper; analyzing influencing factors of hydraulic bumper's characteristic, including the diameter of theittling orifice, the fit clearance between spherical surface piston cylinder wall and hydraulic oil's dynamic viscosity, and presenting material design methods; making the dynamic buffering process model of hydraulic bumper and carrying through simulation calculation, and analyzing influencing factors of hydraulic bumper's dynamic characteristic, including impulsive load, hydraulic oil's volume elasticity modulus and so on.
冲器模型，对液压缓冲器的各种设计参数，如缓冲力、节流孔面积分布、复位弹簧等进行研究；说明液压缓冲器液压油的选择方法，包括液压油需满意的要求以及各种液压油的性质特点(3)介绍越野车辆液压缓冲器的应用背景，以及液压缓冲器的结构特点和工作原理；对液压缓冲器的各种特性，包括薄壁小孔流特性、球面缝隙流特性和油液的压缩性，进行研究计算，从而得到液压缓冲器的综合特性；对液压缓冲器特性的各种影响参数，如节流孔直径、活塞球面和缸壁的配合间隙、油液的动力粘度等，进行分析讨论，并提出具体的设计思路和方法；对液压缓冲器的动态缓冲过程，入行数学建模和仿真计算，并对缓冲器的动态特性影响因素，如冲击载荷、油液的体积弹性系数等，入行讨论分析(4)介绍液压缓冲器检测系统的检测原理、系统结
The company has a full range of production equipment and technologies, including printing presses, hydraulic machines, high frequency, the modulus planer, lathe, etc.; has a full range of equipment so that we can buy raw materials from single-handedly start the production process, through strict regulatory control Products quality.
公司拥有齐全的生产设备及技术，包括印刷机、液压机、高周波、开模刨床、车床等；拥有着齐全的设备使我们能做到由购入原料开始一手包办各生产工序，经过严格监管控制产品质量。
The gas-hydraulic buffer applies a new damping structure and utilizes the characteristic of nitrogen, such as no fatigue and small elastic modulus.
该液气缓冲器具有新型的阻尼结构，并利用了氮气的无疲劳、体积模量小的特点，使其容量及吸能性能优越，回弹时间短，缓冲力上升快，缓冲特性较为理想。
To meet development of hydraulic launch system and arresting recovery system of pilotless aircraft, turbine damper prototypes with different sizes and different liquid mediums have been tested to measure their damping moment modulus.
为满足某型无人驾驶飞机液压弹射系统和拦阻网回收系统的研制需求，在理论分析的基础上采用具有不同结构尺寸和不同液体介质的涡轮阻尼器样件进行阻尼力矩系数的测量试验。
The computer simulation methods were employed to analyze the influences applied to dynamic characteristics of speed control hydraulic circuit due to the different open area of throttle valve and the parameter value change of oil modulus of volume elasticity. The computer simulation results were given.
应用计算机仿真的方法，研究了节流阀开口度的不同和油液体积弹性模量值的改变对进油节流调速回路动态特性的影响，给出了仿真结果。
Methods The transverse flection, flexural strength, elastic modulus, impact strength and surface hardness were compared respectively in using the fast automatic dental raisin hydraulic pressure and water bath-cured denture base resins.
方法采用自行研制的新型液压自控牙用树脂聚合器和常规水浴两种方法加热固化义齿基托材料，进行挠度、抗弯曲强度、弹性模量、抗冲击强度及硬度的对比分析。
The oil bulk modulus reduction caused by aeration in the high pressure chamber of hydraulic lash adjusters (HLA) should be taken into account to accurately model and simulate a valve train with HLA.
为对有液压间隙调节器（HLA）的气门机构进行准确的动力学分析，应考虑HLA高压腔内混气的影响。
Study on Oil Bulk Modulus and Temperature and Pressure Control in Hydraulic Source with High Flow
大流量液压源恒温恒压控制及油液弹性模量研究
The paper puts forward the cross-correlation speed measuring method for determining the effective bulk modulus of oil in hydraulic systems by applying the basic theory of engineering signal processing, and sets up the measuring system.
本文引用工程信号处理技术中的相关测速原理，提出了测试液压系统油液综合体积弹性模量β■的互相关测速方法，并建立了相应的测试系统。
Cross-correlation speed measuring method for determining the effective bulk modulus of oil in hydraulic system
测试液压系统油液综合体积弹性模量的互相关测速方法
This work made basis for the modification and verification of control system model. (4) Based on definition of the bulk modulus, a measuring device for hydraulic oil and hose bulk modulus was designed.
系统辨识为模型的修正和验证奠定了基础。（4）基于体积弹性模量的定义，设计了一种体积弹性模量检测装置。
Making the dynamic buffering process model of hydraulic bumper and carrying through simulation calculation, and analyzing influencing factors of hydraulic bumper's dynamic characteristic, including impulsive load, hydraulic oil's volume elasticity modulus and so on.
对液压缓冲器的动态缓冲过程，进行数学建模和仿真计算，并对缓冲器的动态特性影响因素，如冲击载荷、油液的体积弹性系数等，进行讨论分析。
The dimensionless net pressure, difference of Yang's modulus and fracture toughness between reservoir and salutatory barrier also affected the behaviors of hydraulic fracture.
产层与突变体之间的弹性模量差异、断裂韧性差异以及缝内净压力无因次量是影响裂缝走向的重要因素。
On the basis of the elastic theory for different compressive and tensile moduli, the deformation regularity of surrounding rocks in tunnels under hydraulic pressures was discussed, and mathematical expressions of the elastic resistance coefficient, the elastic compressive modulus, and the elastic tensile modulus were deduced.
采用拉压不同模量弹性理论，探讨水工压力隧洞围岩变形规律，推导了圆形隧洞弹性抗力系数与拉伸弹性模量、压缩弹性模量的数学表达式。
The influences of these two kinds of models on simulation of coupled mechanical and hydraulic system is discussed, as well as how volume modulus affects track of bucket tip.
着重分析了2种液压缸模型对于机械与液压耦合仿真的影响，并分析了液压油的体积弹性模量对斗尖轨迹的影响。