The Study of the Reduction for Noisy Sound of Knitting Machine by the Optimization for Revolving Speed 棉织机降低噪声的经济合理速度的研究
The ring is driven by a motor, revolving at motor speed. 该(旋转)环由电动机带动,其转速等于电动机的转速。
For the shaft revolving speed of the labyrinth disc, it works complicatedly, and nominal discharge coefficients decrease with its increase clearly. 转速的影响过程较为复杂,在本试验范围内换算流量系数随其增加而减小。
The experiment result indicated that the number of weeding tines and revolving speed of the comb disc had significantly effect on the performances of the weeding unit. 试验结果表明,梳齿数目和梳齿盘转速对株间除草机构的性能影响显著。
To regulate revolving speed of fan is capable of saving energy markedly. 风机调速运行,节能效果是显著的。
A theoretical analysts on the relationship between the drape coefficient of fabric and its revolving speed 织物悬垂系数随旋转速度变化的理论分析
In contrast to revolving speed of the turbo-charger and the passing frequencies of the vanes, the blade's syntonic frequencies are obtained, the blade's resonance is reduced, and the severe vibration and the heavy noise are avoided. 对比增压器的工作转速和叶轮与涡轮叶片旋转通过频率,找出了叶片共振的频率,从而为有效地控制压气机进气口振动及噪声大等问题提供了理论依据。
But under certain condition, the spindle should be unsteady, this is decided by the relationship of moment of inertia that spindle to each axis of coordinate system, bearings supporting stiffness, revolving speed of spindle and the imbalance mass control, etc. 但在一定条件下,旋转主轴有可能出现不稳定现象,这取决于主轴绕固联坐标系各轴之转动惯量间的关系、轴承支承刚度、主轴旋转速度和不平衡质量控制等因素。
The measurement and analysis of some experimental models revealed that the engine revolving speed bore a matching relationship to the electronic ignition system in an automobile. 通过对实验模型的测定、分析,提出发动机转速对电控点火系统的匹配关系。
Research on the Measurement of the Revolving Speed With MCS-96 关于利用MCS-96单片机实现转速测量的研究
The law between drape coefficient of fabric and its revolving speed is found cut by calculating original equation in mathematics method, and it is proved by testing result of different sample of fabric. 通过对本构方程的数学推导,找出了旋转速度对悬垂系数的影响规律,并经试验证实其合理性。
In this device, the revolving speed of the main shaft is controlled by the silicon controlled rectifier speed regulator to meet the technological requirements of fixed of suspension agent. 该装置采用可控硅整流电压调速控制器控制主轴转速,满足定量输出悬浮剂的工艺要求。
In order to keep constant unloading rate, a calculation formula is proposed to make gantry travelling speed, boom swivelling speed and reclaiming head revolving speed compatible. A calculation example is given. 为了使卸料能力保持恒定值,本文对大车运行速度、臂架回转及机头回转速度三者的匹配推出了计算公式,并介绍了计算实例。
The Measurement for Griping Force and Limit Revolving Speed of Three Claw Chuck 三爪自定心卡盘夹紧力及极限转速的测定
The imposed_stress features of the enamel blank in model_free forming were analyzed. The relationships between the revolving press and the stroke of the revolving wheel, the revolving speed of the enamel blank and its diameter, and the feeding ratio and the revolving radius were found out. 对无靠模成形毛坯受力特点进行了分析,找到了旋压力与旋轮行程、毛坯转速与毛坯直径、进给比与旋转半径之间的关系。
The results show that the smaller the match clearance or the higher the revolving speed, the greater the load capacity of bearing, but the small clearance is disadvantageous to the flowing of blood cell, the power loss will increase quickly with the rising of speed. 结果表明,轴承配合间隙越小、转速越高,轴承的承载能力越大,但小间隙不利于血液分子的充分流动,高速将明显增加摩擦功耗。
The front earth pressure value could also be controlled in the range of set value by adjusting the advancing speed, screw conveyor revolving speed and cutting wheel revolving speed, which lead to reduce ground deformation. 通过实时调节控制推进速度、螺旋输送机转速以及刀盘转速,可以控制正面土压力在设定范围内,从而有效减少地表变形。
From this, a conclusion can be got: at lower revolving speed, output torque is linear to current limit approximately; 研究及试验结果表明:在低转速下,系统输出转矩与电流限幅值基本上成线性关系;
Resistance simulation control electricity eddy current system, make the revolving speed and braking moment relation accord with the condition of correspond speed and resistance relation. 阻力模拟则是控制电涡流测功机,使其转速与制动力矩间的关系符合相应状况下的车速、阻力关系。
With revolving speed increases, both the friction coefficient and mass wear loss increase. 随转速增加,试样的摩擦系数和质量磨损均增加。
Under conditions of partial load, the indoor load requirements can be satisfied through reducing the revolving speed of pumps and energy consumption of pumps are also reduced. 特别是在部分负荷下,可通过降低水泵转速满足室内负荷的要求,同时也节约了水泵能耗。
Its main characteristic is that: according to the change of indoor cooling or heating load, the volume of chilled water can be adjusted by adjusting the revolving speed of chilled water pumps automatically to satisfy the indoor thermal comfortable requirements. 变水量空调系统是相对于定水量空调系统而言的,它的主要特点是可根据室内负荷的变化,实时自动的控制冷冻水泵的转速来改变冷冻水供水量以满足室内热舒适性要求。
Among them, when revolving speed varies slowly, the methods of frequency spectrum analysis, zoom analysis, demodulation analysis and cepstrum analysis are adopt; and under the conditions of speed-up or speed-down, the methods of time-frequency analysis and order analysis are used. 其中,稳速工况下主要包括频谱分析、细化分析、解调分析和倒谱分析等;变速工况下主要包括时频分析和阶比分析。
In order to maintain a constant winding speed in spinning, the revolving speed of the rotor has to be gradually slowed down with the increase of the winding diameter, which constitutes a parameters slow time-varying system of its mass, stiffness and revolving speed. 完成卷绕的转子(锭子)连同纱线卷装构成转子系统,为保持卷绕线速度恒定,系统转速会随着卷绕直径的增加逐渐减慢,形成质量、刚度、转速等参数慢时变系统。
The main function of this system is that it can automatically undertake data collection of ventilator system parameters, data processing, adjustments on the frequency of ventilator revolving speed and real time monitoring of the operations. 该系统可以自动完成通风机系统参数的采集、数据处理和风机转速的变频调节及工作状况的实时监控等功能。
The study has clarified the kinematical relationship between balls rolling speed and drive nut axis revolving speed, deduced the revolution and rotation angular speed of the rolling body and acquired the contact point position and sliding speed of the rolling body in double nut. 求解了滚珠滚动速度与驱动螺母轴转速之间的运动关系,推导出滚动体公转和自转角速度,求取双螺母内滚动体接触点位置及滑动速度。
As revolving speed is an important parameter for transmission test, this paper studies three ways to get revolving speed. By means of simulation analysis, these three methods are compared and their advantages and disadvantages are pointed out. 转速作为变速器测试分析中一个重要参数,论文研究了三种转速获取方法,通过仿真分析,从计算速度、精度等方面对它们进行了对比并指出其优缺点。
Experimental results showed that with the increase of the time, revolving speed and ball/ powder weight ratio, the granularity of alloy powder decreases markedly, and the appearance features are also significantly changed. 结果表明,随着时间的延长、转速以及球料比的提高,合金粉末的粒度急剧减小,其形貌也发生显著变化。