模型车

The structure-acoustic coupled models of Santana2000 are built both with and without absorption material, and ANSYS finite element analysis software is used to calculate interior acoustic pressure due to panels vibration under specific frequency, then the acoustic contribution of panel is evaluated.

以桑塔那2000型轿车为实例建立无吸声材料和有吸声材料的结构-声学模型，使用ANSYS有限元分析软件计算车身板件在给定频率下振动引起的车内声压，进而求得板件的声学贡献。

Studied every acoustic and vibration characteristics of vehicle system making use of the SEA car model that had been established. Utilizing the specialty of SEA, contrasted the acoustic contributing of panel in every frequency bands by comparing the radiant energy into cab directly with creativity. Compared the effects of every type of factors on the interior acoustic environment of car.

七、利用建立的统计能量分析模型进行车辆系统各个声振特性的分析，研究车辆行驶速度和行驶路面的等级等因素对车内声学环境的影响；利用统计能量分析方法的特点，创造性地通过直接计算仿真实际工况下各个部件对车内辐射能量的对比进行板件各频带声学贡献的分析。

The dead reckoning can carry out by setting up kinematics model of mining vehicle on different uneven terrain at different times, sensors such as compass and angular displacement sensors measure the dynamic parameters information, which makes the continuous real-time orientation come true.

用不同时刻、不同斜面复合三维地形的方法，建立非平坦地形上作业采矿车的航位推算模型，采用电子罗盘、角位移传感器等测量采矿车的动态参数，实现采矿车连续、实时定位。

The effects of drawbar length, articulation joint position on path following performance are investigated using parameter analysis method.

采用模型参数化分析方法，讨论了牵引杆长度、主车与拖车和拖车与拖车的铰接点位置对主车与拖车轨迹同辙性的影响。

The automobile aerodynamic characteristics were obtained. The different shapes of automobile foreside can satisfy different requirements, which provides objective basis for automobile foreside design.

通过对不同桥车车身前部模型外流场数值模拟，确定了不同的桥车车身前部外形可以满足不同的性能要求，为桥车车身前部的设计提供了参考依据。

A mathematical model including the suspension and tire parameters is developed for analyzing the automotive interior noises caused by road irregularity excitation in this paper.The interi-or noises at driver's ear position are calculated by means of admittance functions at suspension mounting points,noise transfer functions from suspension mounting points to driver's ear and suspen-sion and tire parameters.

本文建立了因路面不平度随机激励所产生的车内噪声的数学模型，借助于测得的车身悬置连接点的导纳函数、各连接点到车内耳旁位置的噪声传递函数以及悬置和轮胎参数，计算了由路面不平度所引起的车内耳旁噪声的大小。

For simulation model of two-wheelers, this paper regards the two-wheeler, the cyclist and the road as a mechanical coupling system while emphasizing the actual situation, and proposes a human-vehicle-road coupling system modeling method.

在两轮车仿真模型的研究方面，本文着重于实际情况将两轮车、骑车人和路面视为一个力学耦合系统进行分析，基于此提出了人-车-路耦合系统的建模方法。

And the grasp features of the combined numerical cyclist dummy's hand is determined by simulation experiments, highlighting the interaction force between the cyclist and the two-wheeler, the driving inertia of the two-wheeler, the coupling force between the tyre and the ground, and thus set up the human-vehicle-road coupling system simulation model.

通过仿真试验确定组合式骑车人数值仿真假人的手部抓握特性，突出骑车人与两轮车之间的相互作用力，两轮车的行驶惯性和其轮胎与地面之间的耦合力，从而建立了骑车人-两轮车-路面耦合系统仿真模型。

Flame-out - Occurs when the engine stops running at high rpm.

O： ？* y3 i t$ o' I遥控车|模型|遥控模型|遥控汽车|模型论坛|航模|海模|模型店|China Hobby|RC Car Flame-out –发生在引擎在高转速情况下停止。

According to the regulations above, the paper presents the virtual price and profit function in the course of selecting cars for the departing trains and the model of the grouping cars into arrival trains.

在车流推算的基础上，从应用计算机模拟区段站调度员思维的角度出发，通过分析车列占用调车机车时区集合的特点，使用划分时间片的方法建立合适的调车机车安排的图论模型，将调机运用问题转化为顶点具有加权的图的K-着色问题。

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。