叶片变形是轴流式汽轮鼓风机振动的主要原因之一。
Blade deformation is the source of oscillations in the axial flow turbine-blower.
将数值模拟应用于大型水轮机叶片变形的预测与控制。
The numerical simulation was used in the prediction and control of large turbine blades deformation.
通过对结构塑性动力学响应和叶片变形过程的分析,指出了叶片断裂时的不同转速对撞击过程及结果的影响。
Effects of rotation speed on the impact process and results are pointed out by the analysis of structural plastic dynamic response and blade deformation.
根据结构塑性动力学原理进行响应分析和叶片变形过程分析,并对影响叶片卷曲形状的飞断转速、抗弯刚度等参数进行了考察。
Base on the structure plastic dynamic response analysis and blade deformation process analysis, the factors such as length of blade, rotate speed of breaking were considered.
例如,某些西番莲属的植物可以将自己的叶片变形成为蝴蝶虫卵的模样,雌蝴蝶看到这些“卵”以后,就会寻找其他的植物去产卵。
Some passionflowers transform parts of their leaves into shapes that resemble butterfly eggs; mother butterflies, seeing the "eggs," move on to other plants to deposit their babies.
再采用粘结分离工艺,简单、巧妙地解决了叶片分离加工中叶片易变形、内孔精度易丧失的问题。
To solve the deformation and accuracy problem in the inner hole machining, we utilized stitching and partition process.
针对飞机叶片表面变形量测量要求提出一种非接触式光学测量方法。
This paper presents an untouched optical measuring method in finding out the deformation of an aircraft engine vane.
试制的新模具,可锻出高精度的增压器动叶片。 新模具在动负荷下工作,具有硬度高、变形小、寿命长的特点。
The new dies developed can forge high-precision rotary blades forsuperchargers and, when working under dynamic loads, have the features of goodhardness, small deformation and long service life.
针对涡轮叶片的弯扭变形对叶片模型配准定位的不利影响,提出一种考虑弯扭变形的叶片模型配准方法,以提高叶片模型配准的可靠性与鲁棒性。
In order to improve the reliability and robustness of the blade model alignment process, a blade model alignment method which takes into consideration its blend and twist deformation is presented.
解决了叶片定位、工件脱模、焊接变形引起的滑移难题,提高了生产效率。
Blade positioning, workpiece demoulding and slipping caused by welding deformation are solved. The production efficiency is increased.
采用等温热校形的方法来减小钛合金叶片型面翘曲变形。
The isothermal adjustment method was adopted to relieve distortion of titanium alloy blade profile.
一方面,基于叶片收缩变形位移场的有限元仿真结果,更为准确地计算铸件不同部位的收缩率;
On the one hand, casting shrinkages at different positions of the blade are considered as nonlinear thermo-mechanical casting deformations that are calculated with accuracy by finite element analysis.
铸造过程应力场数值模拟得到涡轮叶片铸造过程中的变形情况。
The numerical simulation of stress field can provide some information to deformation and the rate of shrink which in the process of casting.
本文论述了GH49合金锻造叶片局部粗晶形成的主要原因是临界变形。
The origin of localized coarse grains in forged GH49 alloy blades and some approaches of their prevention are studied in this paper.
为满足航空发动机精铸涡轮叶片壁厚偏差分析需要,提出了一种基于变形函数的精铸涡轮叶片检测模型非刚体配准算法。
To satisfy the need of blade geometry inspection and deviation analysis of aero-engine, a non-rigid registration algorithm based on deformation function is proposed.
然而,在实际加工过程中,容易产生由刀具变形引起的加工误差,影响了叶片的加工精度及表面质量。
However, in actual machining process, machining error caused by the cutter deflection influences the machining accuracy and the surface quality of the blade.
高能量长叶片撞击将形起大变形,叶片弯曲成U形,机匣在第二次撞击处被撕裂击穿。
The impaction of long blade with high energy can cause large deformation and the blade will curl as U shape and tear the wall of the containment ring at the second impact position.
计算了叶片在不同工作载荷下的静态特性,得到了其应力分布和变形规律。
The static characteristics of the blade subjected to different loads are analyzed, obtains the stress and displacement variation rule.
分析结果表明:本文压缩机叶片前缘区域受力变形最大、振动时振幅最大,进而发生局部共振的可能性最大。
The results indicate that the blade leading edge appears maximum deformation and maximum vibration amplitude, so that resonance is most likely to occur.
鸟与航空发动机叶片相撞时,叶片的是在高应变率下变形的。
When the birds strike on the aeroengine, the deformations of the blades are usually occoured under the high strain rates.
实验结果表明,基于骨架驱动的作物叶片形变方法能灵活控制叶片弯曲和扭曲程度,从而获得自然的叶片曲面变形效果。
The results on leaves deformation demonstrate that the proposed approach is applicable for simulating deformation of cereal leaves with realistic effects.
以TA11合金叶片的挤杆过程为研究对象,对其微观组织变化进行数值模拟,研究了变形工艺参数对变形过程中微观组织变化的影响。
The microstructure evolution in bar-extrusion process for TA11 alloy blade was simulated, the influence of deformation parameters on microstructure evolution in deformation process was studied.
叶片表面的再结晶在叶片使用之前就已存在,是由于固溶热处理前叶片的表面存在塑性变形,在固溶热处理过程中形成的。
Owing to the plastic deformation on the blade surface, recrystallization formed on the solid solution heat treatment. Before blade application, recrystallization zone existed already on its two sid…
根据数值模拟结果,研究了不同锻造工艺参数(变形温度、变形速率、压下量等)对叶片锻造过程中的变形力、应力和应变变化的影响规律。
According to the simulation results, we studied the effect of the process parameters, including the deformation temperature, initial strain rate and stroke, on the load, equivalent st...
根据数值模拟结果,研究了不同锻造工艺参数(变形温度、变形速率、压下量等)对叶片锻造过程中的变形力、应力和应变变化的影响规律。
According to the simulation results, we studied the effect of the process parameters, including the deformation temperature, initial strain rate and stroke, on the load, equivalent st...
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