加速度

By applying the difference arithmetic to solve the differential vibration model of the single-degree-of-freedom,the acceleration responses of the vibrated bevel wheel was calculated.The bevel wheel contact fault was simulated by taking it as the impulsion loading in local point.By using techniques of wavelet de-noising and demodulated resonance,gear contact character information was picked up successfully.

从齿轮的单自由度振动模型出发，运用差分算法对模型进行求解，得到斜齿轮的振动加速度响应，将齿面接触型故障等效为在局部点突加一个冲击载荷，对齿轮齿面接触型故障进行了仿真，利用小波降噪和共振解调技术分别对仿真的染噪振动加速度信号进行处理，成功地提取了轮齿接触故障的信息。

Results: The attenuating rate of the peak value of acceleration at the heel of SYS-2 varied between 24.6 % and 85.8 %. The attenuating rate of average acceleration was from 34.2 % to 87.7 %, and the attenuating rate increased with the decline of pulse input width of the shock.

结果：舰艇防冲击鞋后跟部位加速度峰值的衰减率为24.6%～85.8%，平均加速度衰减率为34.2%～87.7%，衰减率随冲击输入脉宽的减小而逐渐增大。

This paper,by means of the unified model of vehicle-track systems,performs a simulating calculation of the railway track and vehicle,caused by track stiffness change.On the basis of simulation calculation,this paper tries to analyze the influence of track stiffness change on axle box acceleration with wavelet and power spectrum density.

据此运用车辆-轨道垂向系统统一模型对不同轨道刚度情况下引起的车辆和轨道响应进行了仿真计算，并对计算结果进行小波分析和功率谱处理，主要分析了钢轨、轨下垫层、道床刚度的变化对客车轴箱加速度的影响，同时对用客车轴箱加速度的变化反推道床的刚度状态进行了探索。

It resolves the backward of long delay in fast-changed acceleration of target tracking in Cartesian coordinates or spherical coordinates.

该方法克服了在直角坐标系和球坐标系上估计目标快变加速度机动延迟大的缺陷，能实时、精确地估计出目标加速度、速度和位置。

Theaccuracy of the centripetal acceleration field and the attitude accuracy of themounting workpiece plane provided by centrifuge have a direct bearing oncalibrating accuracy of the tested accelerometer.

离心机所产生离心加速度场的准确度和提供安装基准的姿态准确度直接影响被测加速度计的标定准确度。

If the acceleration is constant, what is the value of the acceleration?

如果加速度是恒定的，则加速度的值是多少？

Based on a constant value of gravitational acceleration at a given location of the earth and accurate measurement of tilting angle of the table, a calibrating method and procedure for primary parameters of accelerometers, i.e.

基于地球上给定地点的重力加速度为一恒量和转角的准确测量，给出了加速度计主要参数（灵敏度、线性度和横向灵敏度）的标定方法和步骤。

First, by the composition theorem of acceleration of influence move, strict mechanical analysis and accurate mathematical computations, we have acquired the presentation formula of acceleration of the movable mass of the gyroscope rotating in a constant angular velocity in an inertia coordinate system.

利用牵连运动的加速度合成定理，通过严格的力学分析和严密的数学演算首先得到其活动质量当陀螺仪在惯性坐标系中作定常角速度转动时的加速度表达式。

The vibration acceleration′s results from three operation tests and four comprehensive tests of double decker container flat car are summarized,then the adaptability of double decker container flat car to railway is analyzed,and the results that the vertical vibration acceleration of the car body is larger than usual is analyzed.

总结了双层集装箱车3次运行试验和4次综合试验的振动加速度测量结果，对双层集装箱车的线路适应性进行了分析，对其车体垂向振动加速度较大的原因进行了分析。

In light of the fact that the vertical vibration acceleration is on the high side on the loaded double-deck container flat car , on the basis of the test results from operation on track, the causes to the acceleration being on the high side are analyzed from the angle of resilient vibration of the cars.

针对双层集装箱平车重车垂向振动加速度值偏大的实际情况，根据线路运行测试结果，从车辆弹性振动的角度分析了加速度值偏大的原

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。