等加速度

Based on the stress analysis to spired axis mechanism,in the aspect of sliding part which smoothes through alveolus intersection, theresearch of parameters optimization, about the middle alveolus of spired axis andthe dimension of sliding part, has been studied. To the problem that the reverseportion at the both sides of spired axis lashed fiercely and fraies quickly, thearticle finely analyses the best curve of alveolus when adding cushiony spring atthe both sides.

在对螺旋轴机构进行受力分析的基础上，从滑块顺利通过齿槽交叉点的要求方面，对螺旋轴中间段齿槽和滑块的尺寸进行了参数优化分析；针对螺旋轴两端曲线齿槽反向段在高速工作时冲击大、磨损快的问题；从减少滑块在齿槽反向段运动的冲击方面，比较分析了圆弧、抛物线、三角函数等曲线作为螺旋轴齿槽反向段曲线的加速度，提出了较优的(来源：ABCab论bf文网www.abclunwen.com)反向段曲线。

This slide used data collection during Rolling Wheel Deflectometer tests where the PPS is scanning longitudinally to demonstrate the feasibility to construct a longitudinal profile with resorting to an accelerometer to establish an inertial reference.

此页使用来自Rolling Wheel Deflectometer 测试的数据。此测试中，PPS借助加速度计设定惯性基准，并作纵向扫描以展示构造纵向轮廓的灵活性。在25厘米中收集的14次扫描被转换到三度自由上：等距的扫描控制收集，旋转和摇摆，垂直转换。

A picking arm model is established using three-dimension entity software Pro/E and the kinematics analysis and forward and reverse solution calculation of the picking arm are made using D-H method. The kinematics simulation function of ADAMS is used for the simulation analysis of the kinematics features of the forestry nut picking arm and the feature curves of displacement, velocity and acceleration of the end effecter of a machine under a specific motion status are obtained, which provides reference evidence for the motion control and the optimal design of picking arms.

利用三维实体软件Pro/E建立采摘臂模型，并采用D-H法对采摘臂进行运动学分析和正逆解计算；应用ADAMS的运动仿真功能对林木干果采摘臂的运动特性进行仿真分析，给出了机器在特定运动状态下末端执行器的位移、速度及加速度等特性曲线，为采摘机的运动控制及优化设计提供参考依据。

The modified isentropic exponent takes two forms, one for conditions where flow velocity is low, and the other for conditions of flow with high acceleration.

改性等熵指数采取两种形式，一为条件下，流速是低的，和其他条件的流通与高加速度。

Three typical cross section of subgrade has been chosen to test, one of which is near the rail gap. The dynamic characteristic test of subgrade bed including part of subballast and the long-pe

根据各断面在列车荷载作用下的动应力、动变形、振动速度、加速度和累积沉降等实测数据，分析了各影响因素对基床动力特性的影响和不同加固方案及轨缝附近线路的长期沉降变化规律，有以下基本结论：(1)砂土夯实桩与土工格室加固措施能提高基床的承载力，改善基床

Algorithms of the vibration signal processing included parameter method, power analysis and demodulated resonance technique.

通过对轴承工作时的振动加速度、外圈温度以及电机电流等物理量的跟踪采集及分析，来判断其工作状态。

Safety Belt Tension Furling Device: While a collision happens, if the driver uses a safety belt without tension furling device, the injury may happens by the collision on the instrument board or the steering wheel etc.; Safety belt tension device uses the gas generator in the safety belt tension furling device touched by the speed acceleration of collision, the gas expansibility generated will make the tension device rotate in the reverse direction, bringing the passengers back on the seats, protecting the passenger's security.

对于安全带预张紧卷收器：在发生碰撞事故时，若使用非张紧普通安全带，仍然有可能触及汽车方向盘和仪表板等部位而使乘员受伤；预紧式安全带利用撞车时的加速度触发安全带卷收器中的气体发生器，产生的气体膨胀力使卷收器反向旋转而收紧织带，将乘客向后拉向座椅，从而更可靠地保护乘客的人身安全

Safety Belt Tension Furling Device: While a collision happens, if the driver uses a safety belt without tension furling device, the injury may happens by the collision on the instrument board or the steering wheel etc.; Safety belt tension device uses the gas generator in the safety belt tension furlingdevice touched by the speed acceleration of collision, the gas expansibility generated will make the tension device rotate in the reverse direction, bringing the passengers back on the seats, protecting the passenger's security.

对于安全带预张紧卷收器：在发生碰撞事故时，若使用非张紧普通安全带，仍然有可能触及汽车方向盘和仪表板等部位而使乘员受伤；预紧式安全带利用撞车时的加速度触发安全带卷收器中的气体发生器，产生的气体膨胀力使卷收器反向旋转而收紧织带，将乘客向后拉向座椅，从而更可靠地保护乘客的人身安全

this article is research of application of 3d design software ug carries on the components entity design and movement analysis to the boring lathe main axle system.through the method of virtual design and analysis, obtains the design manufacture or the optimized design reference information and data .first complete the boring lathe main axle system's entity components modelling and assembles using the ug formidable entity modelling function and the assembly function,and then establishes the scenario model under the ug organization analysis function module and completes the movement to analyze.obtains on the main axle components the specified point speed, the acceleration and the displacement on a ideal characteristic parameter and output analysis result of obtains office of destination law of motion by the graph form.

本文是应用3维软件ug对镗床主轴系统进行0件实体设计和运动分析的研究。通过虚拟设计的方法进行设计与分析，得到设计制造或者优化设计的参考信息和数据。应用ug强大的实体造型功能和装配功能首先完成镗床主轴系统的实体0件建模和组装，再对装配好的组件在ug机构分析功能模块下建立scenario模型并完成运动分析，得到主轴0件上特定点的速度、加速度和位移等理想的特征参数并以图表的形式输出分析结果得到指定点的运动规律。

Confirming the space place of weakness plane, potential failure model of slope and comprehensive choosing of rock mechanical properties are discussed in the paper. The blasting vibration is tested and the consults are analyzed by regression analysis, binging forward the velocity and acceleration attenuating law of slope rock mass. The stability of two typical slope profile and sensitivity-analysis of the influence blasting vibration to slope stability are analyzed by Sarma method. Bring forward the technical measures of reducing the influence of blasting vibration to slope stability.

本文针对兰尖矿营盘山高陡边坡的工程地质特点，查明其边坡工程、水文地质条件，弄清控制边坡稳定性的F_(108)、ω_6、泥化夹层等软弱结构面的空间位置和边坡潜在的破坏模式以及岩石力学指标的综合选取；对生产爆破振动进行了测试，并对测试结果进行了回归分析，得出边坡岩体质点振动速度及加速度的衰减规律；用Sarma法对两个典型的边坡剖面进行了稳定性分析和爆破震动对边坡稳定性影响的敏感性分析；提出了降低爆破震动对边坡稳定性影响的技术措施。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了