| 1. | Non - dimensional parameters diagnosis ( ndpd ) has been used to detect damage in the experiments
为替代货车滚动轴承故障的人工经验检测提供了较好手段。 |
| 2. | The influences of random material parameters and dimensional parameters on the performance of a micro - gyroscope were quantitatively described by a so - called impact factor based on the probability theory
通过所提出的影响因子这一概念反映了微陀螺参数变异对性能变异的敏感度。 |
| 3. | During the analysis , three non - dimensional parameter is considered : the ratio of the inserting depth of steel pipe to plate ; the ratio of the length of plate to the width of plate ; the ratio of the width of plate to the thick of plate
分析时考虑了三个无量纲参数,钢板插入钢管深度lw与钢管直径之比;钢板长度与钢板厚度之比;钢板宽度与钢板厚度之比。 |
| 4. | During the analysis , three non - dimensional parameters is considered : the ratio of outer diameter of hollow spherical joint to the thick of spherical ; the ratio of outer diameter of hollow spherical joint to the thick of steel plate ; the ratio
分析时考虑了三个无量纲参数,空心球外径d与壁厚t的比值;空心球外径d与钢板厚tp的比值;连接钢管外径与空心球外径之比。 |
| 5. | In this paper , researches were made on diagnosing the rolling bearings on the freight in the high - speed freight train by using ae method : we analyse the the non - dimensional parameters diagnosis ( ndpd ) in time domain of vibration , which have been adopted in the lab
因此，滚动轴承的故障检测一直是研究的热点。本文对于高速行驶的铁路货车轮对滚动轴承的不分解检测的声发射检测法进行了研究。 |
| 6. | By non - dimensional analysis of the model , a series of non - dimensional parameters are deduced . the solid circulation rate is obtained by regressing experimental data , which can predict the solid circulation rate within deviation of + 29 %
通过对该模型的无因次分析，找到了影响固体循环速率的无因次数群，并由实验数据回归拟合得到了固体循环速率的定量关联式，它与实验结果符合较好，误差为29 。 |
| 7. | According to the measured values of the joint angles and the end - effector positions , jacobian matrix is calculated , and errors between the desired and the measured positions of the end - effector are exported to the least square method to determine the compensation for the dimensional parameters of the robot
通过机器人关节角和末端手爪位置的测量数据，计算雅可比矩阵以及手爪位置理论值和实测值的误差，采用最小二乘法对机器人的尺寸参数进行补偿量的计算。 |
| 8. | The existed material fatigue performance test curves are dealt with and analyzed , and the non - dimensional stress - strain curve , tangent modulus factor curve and fatigue life curve are drawn based on the experiment data , and these three non - dimensional parameter curves are used to find the inherent rules that the test curves can be replaced each other to some extent . it can be concluded that if the common character and system error of these materials are found , the test curve of a certain material can be used for reference by another material . this is a simple approach about fatigue life estimate and is engineering practical
对已有的材料力学疲劳性能试验曲线进行分析整理，利用试验数据绘制了相对应力应变曲线、切线模量因子曲线和疲劳寿命曲线，利用这三种无量纲参数曲线发现了其中存在的规律性，即在某种程度上实验曲线可以互相取代，并用试验数据对此进行了讨论，并由此推断，如果找出材料彼此的共性或彼此之间的系统误差就可以将一种材料的试验曲线供其它材料参考使用，这是一种估算材料的疲劳寿命的简便方法，对工程而言具有实用性。 |
