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psoPconstrain
提出了一种新的算法结构,通过建立“局部环境因数”模型,利用集中式处理模式,动态
分配全局勘探和局部开采子种群比例,有效地实现分工目的,平衡算法的局部和全局搜索能力。将其
应用到两个不同类型的实际工程约束优化问题中进行验证,并与其他文献的改进算法进行了对比。
实验结果表明,该算法比其他改进算法在计算精度、效率、鲁棒性上都有很大的提高(Anewalgorithmarchitecturewasproposed. Inorder to adjust effectively the ratioof exploration subgroup
versusexploitationone, the algorithmadopted the centralizedprocessingtechnique toconstruct the local environment factor,
andbalancedthe local andglobal searchcapabilitiesof the algorithm. Furthermore, comparedwithother improvedintelligent
algorithms, experimental results got from the application and verification of real constrained engineering design problem
indicate that the algorithmperformsbetter intermsof accuracy, efficiencyandrobustness)
- 2012-04-27 20:29:07下载
- 积分:1
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cluster VMDaFCM casedat
为了精准、稳定地提取滚动轴承故障特征,提出了基于变分模态分解和奇异值分解的特征提取方法,采用标准模糊C均值聚类(fuzzy C means clustering, FCM)进行故障识
别。对同一负荷下的已知故障信号进行变分模态分解,利用
奇异值分解技术进一步提取各模态特征,通过FCM形成标准聚类中心,采用海明贴近度对测试样本进行分类,并通过计算分类系数和“卜均模糊嫡对分类性能进行评价,将该方法
应用于滚动轴承变负荷故障诊断。通过与基于经验模态分解的特征提取方法对比,该方法对标准FCM初始化条件小敏感,在同负荷故障诊断中表现出更好的分类性能 变负荷故障诊断时,除外圈故障特征线发生明显迁移,其他测试样本故障特征线仍在原聚类中心附近,整体故障识别率保持在100 ,因此,该方法能精确、稳定提取故障特征,为实际滚动轴承智能故障诊断提供参考。( In order to extract fault features of rolling bearing precisely and steadily, a method which is based on variational mode decomposition(VMD) and singular value
decomposition was proposed for fault diagnosis using standard
fuzzy C means clustering(FCM). First of all, the known fault signals measured in the same load but with different faults were
decomposed by VMD, and the modes characteristics were
further extracted using singular value decomposition technique,forming the standard clustering centers by FCM, and then the
test samples were clustered by a Hamming nearness approach,
and the classification performance was uated by calculating classification coefficient and average fuzzy entropy. At last, the method was applied in rolling bearing fault diagnosis under
variable loads. By comparing with a method based on EMD,
this approach is not sensitive to the initialization of standard FCM, and exhibits better classification performance in the same load fault diagnosis Fo)
- 2020-11-11 20:59:44下载
- 积分:1
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Current_PID
电路控制系统仿真,PID控制moshi,matlab(Circuit control system simulation, PID control moshi, matlab)
- 2010-09-03 10:21:40下载
- 积分:1
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data_h
一个把DNA或者蛋白质序列转化为以为时间序列的程序,其中运用了混沌游戏表示的迭代算法,是很多后期后期相似性和相关性等分析必须的前提(the program used to transform the DNA or protein sequences into a time series based on chaos game representation)
- 2015-03-15 16:20:40下载
- 积分:1
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lmz
说明: 里米兹算法的MATLAB源程序,其中交错点组的筛选运用了牛顿迭代法(Meads algorithm in MATLAB source code, which staggered the screening point group used the Newton iteration)
- 2008-11-30 18:19:53下载
- 积分:1
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dct
对图片进行 离散余弦变换 DCT变换
包括Huffman编码 Zigzag扫描
在matlab上能直接运行
(DCT )
- 2015-03-18 23:05:48下载
- 积分:1
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ACO_Improvement
说明: 利用蚁群算法的改进算法实现图像分割,并与传统蚁群算法作比较(The improved ant colony algorithm is used to realize image segmentation and compared with the traditional ant colony algorithm.)
- 2019-06-09 16:27:22下载
- 积分:1
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guanjie
采用刚性关节链模型解决了保弧长的曲线变形问题(Based on the technique of inverse kinematic chain,the problem of mid—point—goal deformation
is solve)
- 2010-09-16 20:51:43下载
- 积分:1
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单级倒立摆
设计一个模糊PID控制器,以及单级倒立摆simulink系统,使其可是实现对单级倒立摆的的优化控制。(Design a fuzzy PID controller and a single-stage inverted pendulum simulink system to achieve optimal control of the single-stage inverted pendulum.)
- 2019-05-16 08:18:36下载
- 积分:1
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apsk_code
APSK仿真程序,包括收端、发端、信道,以及(APSK simulation program, including land-side, the originator, channel, as well as)
- 2007-12-21 12:54:29下载
- 积分:1