通过试验和理论计算两种方法研究高压下煤粉密相气力输送水平管稳定段的压力损失情况。
This paper investigated the pressure drops for horizontal pipes in dense-phase pneumatic conveying of pulverized coal under high pressures through experiments and theoretic calculation.
用这种方式可以减少计算的工作量,算出的溢流面压力分布资料和试验结果符合较好。
The method is applied to free surface sluice gate flow over spillway and computed pressure distribution agrees satisfactorily with experimental results.
对用这种方法得到的一个轴对称进水口曲面上压力分布,进行了松弛法计算,还对另一个进行了气流模型试验。
The pressure distribution along the curved wall of an axially symmetric inlet so obtained was calculated by the relaxation method, and that of another was measured from an air-flow model test.
根据其减缓水击压力的原理,推导了储气罐体积计算公式,通过试验验证,证明该公式具有较高的精度。
In accordance with the mechanism of its reducing water impact pressure, a calculation formula for the gas tank volume is deduced, which is proved to have high accuracy through verification tests.
本文使用地层破裂压力试验和测井资料处理相结合的方法计算地应力具有简单、方便,且输出数据连续、可靠的优点。
The method presented by this thesis calculate the formation stress with diplog data and scaled by the fracture pressure test possess the merit of simplicity, facility and consectary dataout.
计算结果可以较好地与经典的理论解及试验结果相吻合,为加劲环式压力钢管局部稳定性问题分析提供了一种新的可行方法。
The calculated results accord with the classical theoretical and experimental solution, therefore, the method provides a new and feasible way for local stability analysis of stiffener penstocks.
以此方法模拟了喷管和二维叶栅的多个非平衡态凝结流动,计算和试验测量的压力分布较好地吻合。
The nucleating flows in nozzles and cascades are simulated by this method and good agreement is obtained between experiment and calculation.
介绍了压力试验机的计算机自动测试系统构成及软件设计方法。
A computer automatic testing system of pressure testing machine and the design method of its software were introduced.
在油源设备提供一定压力油液的情况下,计算机调整输入到液压缸内的油液流量,由此控制试验载荷。
With the digital control, volume of compressive oil provided by hydraulic power unit in actuator can be regulated to modulate the test load value.
在数值模拟和室内离心机模型试验的基础上,提出了高填方涵洞顶部土压力简化计算方法。
The paper puts forward the simplified calculating method of soil stress of the culvert top on the foundation of numerical simulating and centrifuge modeling.
通过线性理论计算与模型试验结果的比较,指出了线性切片理论在预报水动压力场时的不足。
The drawbacks of linear strip theory in predicting hydrodynamic pressures are pointed out with the comparisons of predicted and model test results.
通过与模型试验结果进行比较可以看出,本计算能够比较准确地预测尾水管内的压力脉动。
The comparison between the calculation results and experimental data indicates that the calculation in this paper can medict the pressure fluctuation in draft tube very well.
分析了静水压试验过程中钢管的受力情况,简要介绍了试验压力计算公式的推导过程。
It analyses stress sustained by pipe during hydrostatic test and briefly introduces calculation formula deduced process of test pressures.
试验结果发现,橡胶材料的剪切模量并没有随压力的升高而减小,该现象与计算结果吻合较好。
The test results show that the shear modulus of the elastomer will not decrease with enhancing compression which agreed with well with the simulation.
同时也可用本计算公式来校验设计文件规定的试验压力。
Meanwhile, this formula can be also used to verify the test pressure specified by the design document.
系统地阐述了钻井泵泵阀试验台的设计指导思想和设计方案的确定依据,并介绍了试验台系统压力的调节方法和计算公式。
The guide rule and general plan to design a laboratorial test stand for drill pump valves are expounded, and the regulation and calculation of the system pressure of the stand are discussed.
在稳流试验台上进行了微粒过滤器的压力损失与流量测试试验,运用测得的数据计算了微粒过滤器的渗透率。
In steady flow rig the pressure drop and the mass flow rate of the DPF were measured, and the measured data are used in the estimation of DPF permeability.
同时通过对试验压力取一定安全系数,推导出液压试验专用焊接平盖的计算公式。
In the same time, a calculating formula of welding flat cover special for hydraulic test is deduced by setting certain safety coefficient of hydraulic test.
本文论述的是根据台架试验及模拟计算结果得出的多缸发动机进气系统内压力波动与充气效率-转速特性的关系。
Presented in this paper is the relationship between intake pressure wave actions and the general volumetric efficiency speed characteristics of multi cylinder engines.
然后考察不同结构的模型在考虑温度场履历情况下加载均匀内压的计算结果,计算表明其计算爆破压力与试验爆破压力基本一致。
And then the conditions of different models under the pressure load considering temperature history are researched. The results showed that calculated burst pressure accords with test result.
该套设备结合了电子万能试验机和GDS液体压力控制器,同时采用计算机软件进行控制,实现了三轴剪切试验的应力控制、数据自动采集和不同应力路径试验的目的。
It includes electronic universal testing machine and GDS water pressure controller. It is controlled by a computer, and automatic recording data and different stress path test may be achieved.
以调整环压的传统经验为基础,编制了控制软件,最终采用计算机对流压及环压进行实时监控,实现岩心流动试验装置压力系统的自动控制。
Accordingly, real time flowing pressure and confining pressure in the core flooding test apparatus can be monitored and controlled automatically by computer and software.
针对YE-50包装件压力试验机落后的测控系统,提出一种基于压力和位移闭环控制的计算机测控系统。
This paper presents a computer test and control system based on closed loop control of pressure and displacement, aiming at the laggard YE-50 pressure tester for package.
分析了静水压试验过程中钢管的受力情况,简要介绍了试验压力计算公式的推导过程。
This paper introduces the experiment condition of pressure experiment for water supplying pipeline of glass steel, experiment technology and method.
气藏现埸试验证实了该理论的正确性,并根据压力降落曲线中的视稳定状态资料,便能正确计算气井的控制储量。
This theory has been proved by gas well test in field. According to the apparent steady state date in pressure drawdown curve, the control reserves of a gas well can be calculated correctly.
通过渗流流量和压力相关试验测定了滑脱修正系数和渗流指数以及渗流系数,并将该方程的计算结果和现场产量做了对比,证明了该方法的正确性。
Measured coefficient of slippage, seepage index and seepage coefficient by experiment, and compared calculated results with spot results and verified the effectiveness of this method.
该文通过试验和理论计算两种方法研究了高压下煤粉密相气力输送垂直管段的压力损失情况。
This paper presents pressure drops for vertical pipe in dense-phase pneumatically conveying pulverized coal under high pressures by a method of experimentation and analytical calculation.
有限元计算结果与模态试验结果较吻合,声模态修正后的结果能很好地解释缸内燃烧压力高频振荡。
The results show that the high-frequency pressure oscillation is aroused by the combustion chamber's resonance.
有限元计算结果与模态试验结果较吻合,声模态修正后的结果能很好地解释缸内燃烧压力高频振荡。
The results show that the high-frequency pressure oscillation is aroused by the combustion chamber's resonance.
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