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七自由度车辆数学模型
说明： 汽车bai的7自由度模型du一般是在设计汽车悬架时用zhi到，1/4悬架时2自由度模型，包括簧上部分的dao垂直运动和簧下部分的垂直运动，半车悬架是4自由度模型，整车用7自由度模型。考虑汽车悬架作用，这车车身有三个自由度，分别是车体的Z轴上下运动，沿X轴和Y轴的转动。对于空间刚体6个自由度中的其他3个自由度，2个平动和转动与悬架系统无关，所以没有考虑。上述3个车身自由度加上4个悬架的簧下部分(主要是轮胎的上下跳动)，一共是7个自由度。(The 7-DOF model Du of automobile Bai is generally a 2-DOF model when designing automobile suspension, including the vertical movement of Dao on the spring part and the vertical movement of the under spring part. The half car suspension is a 4-DOF model, and the whole car is a 7-DOF model. Considering the function of automobile suspension, the car body has three degrees of freedom, which are the up and down movement of Z axis of the car body, and the rotation along X axis and Y axis. For the other three of the six degrees of freedom of the space rigid body, two translation and rotation are independent of the suspension system, so they are not considered. The above three body degrees of freedom plus the four suspension spring parts (mainly the up and down runout of tires), a total of 7 degrees of freedom.)
- 2021-01-08 23:38:51下载
- 积分：1
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货物订单管理系统
货物订单管理系统-goods orders Management System
- 2022-05-13 01:00:28下载
- 积分：1
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310V-FOC-DEMO
说明： 310V-foc无感无刷直流电机之电调设计源代码。(The source code of the electric regulation design of the sensorless BLDCM)
- 2021-04-27 13:18:44下载
- 积分：1
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UELcode
内聚力的循环本构开发，新的UEL单元，比较复杂，很难学会的(Cyclic constitutive development of cohesion)
- 2019-02-25 15:55:13下载
- 积分：1
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LANDSAT8_AOT_RETRIEVAL_MODIFICATION_new
说明： 使用单通道反演Landsat 8 AOD值(retrieval AOD using single band based on Landsat 8)
- 2021-01-17 14:08:50下载
- 积分：1
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[emuch.net]获得lammpsdata文件的几种方法
说明： 获得lammps中data文件的几种方法(Several methods of obtaining data files in lammps)
- 2020-07-02 16:34:55下载
- 积分：1
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tfutfiytfkuygoluliuhli
乌特菲特夫克乌鲁利
- 2022-01-27 18:53:41下载
- 积分：1
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FFT
说明： 快速傅里叶变换，是快速计算序列的离散傅里叶变换（DFT）或其逆变换的方法。傅里叶分析将信号从原始域（通常是时间或空间）转换到频域的表示或者逆过来转换。FFT会通过把DFT矩阵分解为稀疏（大多为零）因子之积来快速计算此类变换。(Fast Fourier transform (FFT) is a fast method to calculate the discrete Fourier transform (DFT) of a sequence or its inverse transform. Fourier analysis transforms a signal from its original domain (usually time or space) to its representation in the frequency domain or vice versa. FFT can calculate these transformations quickly by decomposing DFT matrix into product of sparse (mostly zero) factors.)
- 2020-04-30 09:53:10下载
- 积分：1
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communi2.pdf
Radio frequency communication
- 2019-04-26 15:19:43下载
- 积分：1
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8人抢答器
说明： 基于AT89C51单片机设计制作一个抢答器，具体要求如下：
1、 设计一个智力竞赛抢答器，可同时共8名选手参加比赛，编号为1、2、3、4、5、6、7、8，各用一个按键。
2、 用一个按键作为主持人总开关，用来控制系统的清零和抢答的开始。
3、 抢答器开始后，数码管开始10秒倒计时，若有选手按动抢答按钮，在LED数码管上显示选手的编号，同时灯亮且伴随声音提示；倒计时完成后，选手不能在抢答；有人抢答成功后，要禁止其他选手抢答；最先抢答选手的编号一直保留到主持人将系统清零。(Based on AT89C51 single chip computer, a rush answerer is designed and manufactured. The specific requirements are as follows:
1. Designing an intelligence contest answering machine, which can be attended by 8 competitors at the same time, numbered 1, 2, 3, 4, 5, 6, 7 and 8, each with a button.
2. A key is used as the master switch of the host, which is used to clear the zero of the control system and start the rush response.
3. After the answering machine starts, the digital tube counts down 10 seconds. If a player presses the answering button and displays the player's number on the LED digital tube, the light is on and accompanied by sound prompts. After the countdown is completed, the competitor can't rush to answer. When someone rushes to answer successfully, other competitors are forbidden to rush to answer. The number of the first competitor is kept until the host clears the system.)
- 2019-03-15 22:25:56下载
- 积分：1
