辐板

The method of the optimization design for gear wheel spoke which is based on CAD model is investigated.

对一种基于二维CAD模型的齿轮辐板优化设计方法进行了研究。

Based on the research,the software on the gear wheel spoke optimization was developed.

并对某直升机减速器中的一薄辐齿轮辐板进行了优化，有效地减轻了齿轮的重量，取得了良好的效果。

For experimental setup to calibrate spectral radiance by applying a diffuse plane, the measured spectral radiance can be obtained through integral of spectral radiation flux entering the spectrometer.

在利用漫反射板标定光谱辐亮度的实验装置中，标准灯完全可以近似为点光源。通过对进入光谱仪的辐射通量的数值积分，可以对应求出仪器的实测光谱辐亮度的计算公式。

Classic hardtop styling, with no B-pillar CTS production windshield laid at a faster angle to create a sleeker profileChrome, split seven-spoke wheel design; 20-inch front wheels and 21-inch rear wheels Sculpted lower front fascia with unique brake-cooling vents Slim-profile outside mirrors XLR-type hidden door handles with proximity remote opening Unique front fender vents Diamond-cut rear fascia with mesh lower grilles and center-outlet exhaust Taillamps with a subtle fin profile and are highlighted with LED lighting technology with light pipes Rear spoiler integrated into the center high-mounted stop lamp Sculpted roof-mounted antenna for OnStar, XM Satellite Radio, etc.

经典硬顶的设计风格，没有B柱，挡风玻璃生产中旅以更快的角度作出规定，以创造一个更光滑profileChrome，分7辐轮毂设计，20英寸前轮和21英寸后轮向内凹陷下具有独特的前仪表板刹车冷却喷口轻薄外后视镜XLR型隐蔽接近门把手的远程开放独特的前挡泥板通风口钻石切割与网格的微妙鳍配置较低的格栅和中心排气出口筋膜后尾灯，并与照明技术，突出了光管后扰流器集成到中央高位安装停止灯设计的弧线车顶安装了卫星导航，XM卫星收音机，天线等

Re-ported complications include humeral fractures, rota-tor cuff tears, glenohumeral dislocation, and injuries to the axillary and radial nerves.

被报告的复杂化包括肩破裂、板转器袖口泪花、关节盂与肱骨脱臼，和伤害对辅助和辐形神经。

The change of aerodynamic characteristics caused by different wheel spokes is discussed on the basis of a comparison of numerical simulation and experiment.

应用计算流体力学的方法，对具有不同辐板的车轮外流场进行了数值模拟，并与试验相对照，讨论不同的车轮辐板所引起的气动特性的变化。

And parking braking load case combined with mechanical load case have relatively less effect on fatigue crack initiation at the rim of wheel plate hole.

机械载荷工况与停车制动工况的组合作用对车轮辐板孔边萌生疲劳裂纹的影响相对较小。

The temperature and stress field of wagon wheel under the condition of long ramp way cycle braking in Daqin line have been simulated by using FEM and axial symmetry model Results indicate that high stress area appears on the wheel web, and the strength of wheel meets the requirement of routine operation under current braking condition.

采用轴对称模型和有限元方法，模拟了大秦线长大坡道循环制动条件下货车车轮温度和应力场，结果表明车轮高应力区出现在辐板上，现行制动条件下车轮强度满足使用要求。

The crack growth rate da/dt of 840D wheel web is of great dispersion,which mainly roots in dispersion of wheel load.

840D车轮辐板孔裂纹扩展速率da/dt具有很大分散性，其分散性主要来源于车轮载荷分散性，可用da/dt=Q.a(a≤35mm时)来表达，裂纹扩展参数Q代表了da/dt的分散性。

Automotive aerodynamics ; vortex ; numerical simulation ; wheel spoke

汽车空气动力学；漩涡；数值模拟；车轮辐板

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。