The working principle, hydraulic impact, noise have also been studied in this paper.
并介绍了工作原理，对液压冲击、噪声等问题进行理论动态特性分析。
To avoid the hydraulic impact, the pressure of the hydraulic cushion can't be too high;
要克服混凝土泵换向时的液压冲击，要求换向时的缓冲压力不要过高；
The paper introduces the operating principle, structure and application of hydraulic impact breaker.
介绍了液压冲击型破岩机的原理、结构及其应用。
Solutions have been put forth upon analysis of causes producing hydraulic impact in work of hydraulic press.
分析了液压机工作中液压冲击现象产生的原因，并在此基础上提供出了解决措施。
A hydraulic impact machine is a special machinery, its main output working parameters are impact energy and impact frequency.
液压冲击机械是一类特殊的机械设备，其性能参数的数据采集和测试系统的设计一直是各国学者的研究热点。
To drill soft, unconsolidated, usually shallow formations by eroding the "rock" below the bit by hydraulic impact loading alone.
钻进松软、非固结，通常是浅地层时，通过仅仅依靠液力冲击载荷去冲蚀破碎钻头下的岩石。
This paper analyses the working parameter adjustment principles of abroad and at home hydraulic impact machine, and shows their defects.
分析了国内外液压冲击机械工作参数调节原理，并指出其主要缺陷。
The hydraulic impact is one of common troubles in hydraulic system. It endamages seriously the normal operation and reliability of the hydraulic system.
液压冲击是液压系统的常见故障之一，对液压系统的正常工作和可靠性，具有严重的危害。
On account of the hydraulic impact machine being applied rapidly in many fields, it brings forward their higher technique capability for different working conditions.
由于液压冲击机械在各个行业中的迅速推广应用，为适应不同的作业条件，对其技术性能提出了更高的要求。
The simulation results show that, the extension of priority valve cracking time, shortening tube length and increasing tube diameter will be helpful to reduce the hydraulic impact.
仿真结果表明，通过增大优先阀开启时间，适当缩短管路长度和增大管径能够有效降低液压系统的液压冲击现象。
By analyzing the impact phenomenon of hydraulic support's hydraulic system, this research finds out the cause of hydraulic impact lies in the discontinuity of hydraulic flow velocity.
通过对液压支架液压系统的冲击现象的分析，找出引起液压冲击的原因是液压流速的突变。
The dissertation sets up the data model of the precursor core of the pressure valve, analyzes its dynamic response performance under hydraulic impact, proves its good response characteristic.
文章对系统先导式压力调节阀的先导阀芯进行了建模与仿真，分析了在压力冲击下先导阀芯的动态响应特性，论证了系统压力调节过程中良好的压力跟随性能；
The work of agencies to rely on speed and for adjusting the pump or motor variables agencies to achieve, to avoid the open loop system for the process are the hydraulic impact and energy loss.
工作机构的变速和换向靠调节泵或马达的变量机构实现，避免了开式系统换向过程中所出现的液压冲击和能量损失。
In the hydraulic system USES the accumulator, may the absorption line shock maximum limit, reduce to the variation of load to the adhesive tape the impact, enhances adhesive tape's service life.
液压系统中采用蓄能器，可以最大限度的吸收液压冲击，减小对负载变化对胶带的冲击，提高胶带的使用寿命。
Unlike the market covers is that it is pressed out by hydraulic machine, high impact strength.
与市面上的井盖不同的是，它是用液压机压出来的，抗冲击强度较大。
Such as the purchase of insulation type hydraulic elevator parking storehouse construction investment big, open work environment impact on job performance, rain fog can not work.
比如购买绝缘型液压升降机建造停放库房的投资额大，露天作业环境对作业性能影响大，下雨大雾不能作业。
There are many factors that influence impact and vibration in hydraulic systems, such as pump structure, valve parameters, load, pipe design and operation conditions.
影响液压系统冲击、振动的因素很多，如泵的结构、阀的参数及负载情况和整个系统管路设计的合理性、工作条件等。
Numerical method is proposed for general mechanical impact systems by means of characteristic line theory . Simulation results of hydraulic rock drill are provided .
应用特征线方法，提出了一般冲击机械的波动力学数值计算方法，给出了一液压凿岩机械的数值模拟结果。
The size impact of narrow side on thermal hydraulic behaviors of rectangular channel (pressure drop and CHF) has been evaluated quantitatively in this paper, as a given fuel element as reference.
本文以某一尺寸为例，定量评估了矩形通道窄进尺寸偏差对热工水力特性（流动压降和CHF）的影响。
The effective method preventing and reducing the defects is to decrease the solid particles for the pollution of hydraulic oil and to avoid the impact and overhead of system.
减少固体颗粒对液压油的污染，防止液压冲击和系统发热是防止和减少系统故障行之有效的方法。
According to the drive mechanism and the demand of the hydraulic rock drill, the structure character and the designing ways of the impact device, control valve and supporting arm were introduced.
根据水压凿岩机液压传动原理和使用要求，详细介绍了凿岩机中冲击器、操纵阀和支腿的结构特点和设计方法。
Hydraulic bum per is the key component of simulating impact test equipment.
液压缓冲器是模拟碰撞试验设备中的关键部件。
Because of the quick change and unexpected stop of the circulating direction of oil liquid, the machine tool hydraulic system will produce pressure impact.
机床液压系统由于油液流动方向迅速改变或突然停止流动，产生压力冲击。
As to the difficulty in constructing a model and variable impact because of uneven ground, a fuzzy controller is made to control the velocity of the hydraulic motor.
针对液压阀控马达模型建立困难而又不准确，路面凸凹不平造成冲击载荷时变等问题，设计了模糊控制器对行走马达的速度进行闭环控制。
The impact factors on advancing supporting speed of hydraulic support are analyzed in this article, and the path and methods to accelerate roof support speed of combined mining face are suggested.
分析了影响液压支架移架速度的因素，提出了加快综采面顶板支护速度的方法和措施。
Rapid hydraulic tamper, compared with traditional tamper, bring advantages such as higher impact energy, greater effect depth and higher control flexibility.
快速液压夯实机与传统的夯实设备相比，具有夯击能量高，影响深度大，机动灵活的优点。
Rapid hydraulic tamper, compared with traditional tamper, bring advantages such as higher impact energy, greater effect depth and higher control flexibility.
快速液压夯实机与传统的夯实设备相比，具有夯击能量高，影响深度大，机动灵活的优点。
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