查询词典 acceleration

Projectile's radial acceleration sample value in trajectory includes projectile's angular velocity information and air drag acceleration,to extract angular velocity-time series value,the design method of the FIR digital filter firstly uses Matlab to design and emulate,and then on the float-point of DSP digital filtering is realized.

旋转弹丸外弹道离心加速度采样信号包含有高频弹丸转速信息和空气阻力加速度低频分量，为了提取弹丸转速－时间序列值，需要实时滤除低频阻力加速度分量，设计了在DSP中实时实现的数字滤波器。

Based on the condition that the hoisting rope be regarded as the continuous flexible rod, by synthetical analyses which take the ride comfort of hoisting cage and the little dynamic oscillation of hoisting rope as the aim, the rational acceleration curve of driving system,the best acceleration function is brought out in this paper, and all these can provide conferential reference for...

基于钢绳为连续弹性杆的条件下，通过提升容器满足乘坐舒适性和提升钢丝绳系产生较小震动为目标的综合分析，提出了矿井提升机械驱动系统的合理加速度曲线，即提升机常用激励加速度函数的首选形式，为矿井提升机的进一步研究和设计提供参考依据。图 7，参 14

Besides The assessment criterion on rectilineal railway, the comfort index N, which is relevant to unbalanced acceleration based on the test result on train running on curve beams, shall also be adopted, on the condition that the transverse stable acceleration is not larger than 0.08g..

列车在曲线桥梁上运行的平稳性除采用直线上的评定标准外，基于国内外曲线上列车运行试验结果，提出同时在横向采用稳态加速度不大于0.08g和未被平衡的加速度相关的舒适度指标N进行评定的建议，并且给出了稳态加速度和未被平衡的加速度的确定方法。

Convention V-belt Continuously Variable Transmission, shifts gears the travel mechanism property fixed constraint, unable full into full play initiative control advantage, to engine and Transmission on the go to hold optimum match, Also takes into consideration acceleration and fuel consumption performance, so this paper research Motorcycles with an Electronically-Controlled Continuously Variable Transmission shift gears planning, to use motor power screw, we shall revolve motion changes rectilinear motion, to push driving sheaves achieved to change speed ratio; Comparison between analysis convention CVT speed ratio shift gears curves of acceleration and fuel consumption performance optimum curves, use engine can hold high performance output or low fuel consumption region run.

中文摘要传统皮带式无段变速器(Continuously Variable Transmission， CVT)，换档行程由於机械特性的限制，无法完全发挥主动控制的优点，让引擎与变速器随时保持在最佳的匹配状态，同时顾及加速性能与燃油消耗，所以本文主要研究机车用电子控制式无段变速系统(Electronically Controlled Continuously Variable Transmission， ECVT)最佳换档规划，利用马达与动力螺杆，将旋转运动改变为直线运动，以推动主动滑轮达到改变减速比；分析传统CVT减速比换档曲线与最佳化曲线之加速性能及燃油消耗比较，使引擎能够保持较高性能输出或较低油耗区间运转。

Considered the factor of damping,a single degree of freedom s dynamic model of the high-speed cam mechanism is established.Choosing the law of sine acceleration motion as the excitation function,a displacement and acceleration dynamic response equations of the main vibration phase and residual vibration phase,the working dynamic response change curve through the inferential reasoning working end movement equation is derived.The result is obtained that different period and damping ratio have different impact

建立了考虑阻尼因素的等效单自由度高速凸轮机构的动力学模型，以正弦加速度运动规律方程为激振函数，推导出了从动件系统主振段和余振段的位移和加速度动态响应方程并绘制出了动态响应变化曲线，得出了不同阻尼比和周期比对主振段和余振段的动态响应，从而为高速凸轮机构的合理设计提供了一定的理论依据。

The simulation results show: at the different speed grade,comparing with passive control,the improving-rate of acceleration maximum is 55%～64% by using self-adaptive fuzzy control,the reducing rate of acceleration virtual value is 55%～77%,and the improving rate of Sperling′s ride index is 16%～35%.

仿真结果表明：在重载机车不同运行速度下，与被动控制相比，自适应模糊半主动控制的加速度最大值改善率、加速度有效值减少率和Sperling 乘坐指数提高率分别为55%~64%，55%~77%和16%~35%。

Secondly, the simulative software has been made using MATLAB to simulate the suspensory point load、 velocity、 acceleration and pure toque of speed reducer shaft of pumping unit on any place and the displacement、 velocity、 acceleration of main component of pumping unit and the forces of linked point of two components, so the changes of the motion and the force of pumping unit and the geometry parameters' influence on the main performances of pumping unit have been dynamic analyzed.

其次，利用MATLAB，编制了仿真软什，对抽油机在任意位置时的悬点载荷、速度、加速度和减速器输出轴抓矩以及抽油机主要构件的位移、速度、加速度利各构件连接点的受力等进行了仿真，从而动态地分析了抽油机的运动利受力变化及几何参数对抽油机主要性能的影响情况。

One component has the direction tangent to the path of this point, pointed in the same sense of angular acceleration of this body, and is called the tangential acceleration.

一个分量方向与该点的轨迹相切，指向与该物体的角加速度的方向相同，叫做切向加速度。

The brake of non-throwing arm is helpful to obtain the tangential acceleration in the right shoulder and normal acceleration, afterwards the right shoulder in surmounted hip vertical plane after the braking maneuver, can throw the angular momentum effectively to the arm.

①非投掷臂的制动，有助于右肩获得切向加速度，法向加速度，而后右肩在超越髋部垂直后的制动动作，能将角动量有效的传递到投掷臂。

The modified acceleration deceleration control algorithm of trigonometric function is proposed on the basis of studying the acceleration deceleration control algorithm of trigonometric function.

在对三角函数加减速控制算法研究的基础上，提出改进的三角函数加减速控制算法。

I can't say anything hurtful about anyone.

我不能说任何伤害人左右。

She was a short fat woman , garbed in a very tight , very gaudy red dress .

大冬天的，我们穿两件毛衣她却穿件短袖，不停地扇扇子，一个劲叫热。