1) center of effort
力作用中心,风压中心
2) centre of effort
作用力中心
3) pressure center
风压中心
1.
The crosswind produces great effect on the handling stability of vehicle at high speed, which is related to the relative location between pressure center of the crosswind and neutral-steer point of the vehicle.
侧向风对高速汽车的操纵稳定性有明显的影响,其影响规律与风压中心和中性转向点的相对位置密切相关。
2.
In the simulation analysis, pressure center s shift was taken into account for the first time.
仿真过程首次计及风压中心的漂移,着重拟合了气动侧力、风压中心位置随时间的变化曲线。
3.
During the whole process,pressure center s shift is taken into account for the first time.
利用ADAMS软件建立了相应的动力学模型,对侧向气动力进行了较好的模拟,首次计及整个过程中风压中心的漂移,得到与试验数据趋于吻合的仿真结果。
4) the center of gravitation
引力作用中心
1.
The concept about the center of inductive electric charge and the center of electrostatic force are introduced by analogy with the center of mass and the center of gravitation.
类比质心和引力作用中心,引入感应电荷中心和静电引力作用中心概念。
6) Center of pressure
压力中心
1.
Result:Using this system,the ground reaction forces in three directions during walking and the trace of center of pressure(COP) oscillation during standing on the platform can be detected.
结果:利用该系统不仅可以检测行走过程中三个方向的地面反力,而且可以检测站立时压力中心曲线,计算其动摇长度、面积等特征值。
2.
In order to exactly evaluate the walking stability and stability margin of a quadruped robot a general criteria is proposed adopting the minimal distance from the supporting edge to the center of pressure on ground to estimate the walking stability of the robot.
为了准确评定足式机器人的行走稳定性及稳定裕度,提出了采用支撑面压力中心至机器人各足支撑点构成的支撑多边型各边的最短距离来评定机器人的行走稳定性的一般准则。
3.
With the measurement and analysis of the Rs-scan plantar pressure and the JVC-9800 digital vidicon,the characteristics of plantar pressure of 6 elite track and field athletes in the final throwing phase was described from the aspects of the curve of pressure,plantar pressure distribution and the center of pressure.
使用RSscan足底压力测量和分析软件对山东省田径队的6名优秀铅球运动进行了测量,主要从压力曲线、压力中心轨迹和脚底各区的压力时间积分几个方面描述优秀铅球运动员背向滑步推铅球时脚底压力分布特点。
补充资料:风压
风压
wind pressure
蒲福风力等级表牛 注:13~17级风力是当风速可以仪器测定时用之。fengya风压(windp找,sure)风吹过障碍物时,在垂直于风速方向上单位面积上所受到的压力。对于障碍物来说,风压是两部分作用之和:一是迎风面的“动压强”(告,2),二是背风侧的“吸压强”(告、”。将这两部分综合起来,可求得风压的公式: ,二合‘l+c,,’式中p为风压;P为空气密度;。为风速;c为结构系数。结构系数因障碍物形状而异,平板的C值为l,圆柱形障碍物为一0.3。上式中(l+C)plZ通常称为风速系数,主要取决于结构系数和空气密度。常用的风压系数通常不考虑结构系数的作用,即为阿2,在标准大气条件下,它等于1/16。由于空气密度是气温、气压和湿度的函数,各地的风压系数变化较大。在中国,沿海地区大致为1117,内陆为ljl6,青藏高原1118~1/26。对于迎风侧不是平面的障碍物而言,因为有复杂的流体动力因素参与,实际风压与上式算出的风压有较大出人。(李世奎)
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参考词条