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Applications-Some Influences of Engineering Ideas on Biology Being the fifth in a series of essays on the materials of nature 被引量:1
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作者 Julian F.V.Vincent 《Journal of Bionic Engineering》 SCIE EI CSCD 2006年第2期99-114,共16页
Ideas from engineering have helped the understanding of biological organisms for thousands of years. However, the mechanical aspects of biological materials and structures can, if properly interpreted and analysed, le... Ideas from engineering have helped the understanding of biological organisms for thousands of years. However, the mechanical aspects of biological materials and structures can, if properly interpreted and analysed, lead to a deeper understanding of the biology of organisms. Such an approach, although always current in some form, is nevertheless subject to the vagaries of fashion and the availability of analytical techniques. At present we are in a period of upturn. Areas of interest are deployable structures (applications in aerospace), palaeontology (how little do we need to know in order to create a credible biosphere) and food science (we need a rational approach to the mechanics of food). 展开更多
关键词 Applications-Some Influences of engineering Ideas on Biology Being the fifth in a series of essays on the materials of nature
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Detection of cylinder pressure in diesel engines using cylinder head vibration and time series methods
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作者 ZHU Jian-yuan 《Journal of Marine Science and Application》 2007年第4期8-12,共5页
This paper investigates the vibration characteristics of diesel engine cylinder heads by means of the time series method. With the concept of "Assumed System",the vibration transfer function of real cylinder... This paper investigates the vibration characteristics of diesel engine cylinder heads by means of the time series method. With the concept of "Assumed System",the vibration transfer function of real cylinder head structures is established using the autoregressive-moving average models(ARMA models) of cylinder head surface vibration signals. Then this transfer function is successfully used to reconstruct the gas pressure trace inside the cylinder from measured cylinder head vibration signals. This offers an effective means for diesel engine cylinder pressure detection and condition monitoring. 展开更多
关键词 time series analysis diesel engine VIBRATION transfer function ARMA model
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Neural Networks and the Study of Time Series: An Application in Engineering Education
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作者 Jose Tarcisio Franco de Camargo Estefano Vizconde Veraszto +1 位作者 Gilmar Barreto Sergio Ferreira do Amaral 《Journal of Mechanics Engineering and Automation》 2015年第3期153-160,共8页
Time series are an important object of study in sciences, engineering and business, especially in cases where it is expected to know, predict and optimize behaviors. In this context, we intend to show the feasibility ... Time series are an important object of study in sciences, engineering and business, especially in cases where it is expected to know, predict and optimize behaviors. In this context, we intend to show the feasibility of using artificial neural networks in the study of several time series in an engineering course, especially those that have no overt behavior or are not able to be modeled mathematically in a simple way and have direct application in the education of future engineers. 展开更多
关键词 engineering education time series mathematical modeling.
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Series 190 Diesel Engines Used in China's Oil Drilling
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作者 Liu Qimin(Chief Engineer,Jinan Diesel Engine Works) 《China Oil & Gas》 CAS 1996年第2期104-105,共2页
Series190DieselEnginesUsedinChina'sOilDrilling¥//LiuQimin(ChiefEngineer.JinanDieselEngineWorks)JinanDieselEn... Series190DieselEnginesUsedinChina'sOilDrilling¥//LiuQimin(ChiefEngineer.JinanDieselEngineWorks)JinanDieselEngineWorks,located... 展开更多
关键词 series 190 Diesel engines Used in China’s Oil Drilling
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An Innovative Deep Architecture for Flight Safety Risk Assessment Based on Time Series Data
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作者 Hong Sun Fangquan Yang +2 位作者 Peiwen Zhang Yang Jiao Yunxiang Zhao 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第3期2549-2569,共21页
With the development of the integration of aviation safety and artificial intelligence,research on the combination of risk assessment and artificial intelligence is particularly important in the field of risk manageme... With the development of the integration of aviation safety and artificial intelligence,research on the combination of risk assessment and artificial intelligence is particularly important in the field of risk management,but searching for an efficient and accurate risk assessment algorithm has become a challenge for the civil aviation industry.Therefore,an improved risk assessment algorithm(PS-AE-LSTM)based on long short-term memory network(LSTM)with autoencoder(AE)is proposed for the various supervised deep learning algorithms in flight safety that cannot adequately address the problem of the quality on risk level labels.Firstly,based on the normal distribution characteristics of flight data,a probability severity(PS)model is established to enhance the quality of risk assessment labels.Secondly,autoencoder is introduced to reconstruct the flight parameter data to improve the data quality.Finally,utilizing the time-series nature of flight data,a long and short-termmemory network is used to classify the risk level and improve the accuracy of risk assessment.Thus,a risk assessment experimentwas conducted to analyze a fleet landing phase dataset using the PS-AE-LSTMalgorithm to assess the risk level associated with aircraft hard landing events.The results show that the proposed algorithm achieves an accuracy of 86.45%compared with seven baseline models and has excellent risk assessment capability. 展开更多
关键词 Safety engineering risk assessment time series data autoencoder LSTM
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基于Google Earth Engine遥感大数据云平台的盐城盐沼植被精细分类研究 被引量:1
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作者 吕林 易文彬 +3 位作者 崔丹丹 王楠 张东 谢正磊 《海洋通报》 CAS CSCD 北大核心 2024年第1期114-126,共13页
江苏省自1982年开始引种互花米草以来,滨海盐沼植被景观格局发生了巨大变化,芦苇和互花米草面积不断增长,挤占了碱蓬生态位,破坏了生态系统平衡。滨海盐沼湿地是三大蓝碳生态系统之一,具有高固碳和缓解温室效应的生态功能。利用遥感云... 江苏省自1982年开始引种互花米草以来,滨海盐沼植被景观格局发生了巨大变化,芦苇和互花米草面积不断增长,挤占了碱蓬生态位,破坏了生态系统平衡。滨海盐沼湿地是三大蓝碳生态系统之一,具有高固碳和缓解温室效应的生态功能。利用遥感云平台手段监测滨海盐沼植被时空动态变化规律,可为滨海盐沼湿地生态系统保护以及修复提供科学支撑。本文选取植被类型丰富的江苏沿海地区为研究区,基于Google Earth Engine(GEE)平台,选取2000-2020年的Landsat 5、Landsat 7、Landsat 8以及Sentinel-2影像,提出了一种湿地植被提取方法。首先,构建盐城盐沼湿地地表覆盖分类体系,选取样本点,计算特征指数,进行地物分类;然后,利用时间谐波分析法对盐沼植被归一化植被指数(NDVI)变化特征进行分析,确定三类盐沼植被的物候差异;最后,基于物候特征,利用随机森林(Random Forest,RF)分类法提取盐城滨海湿地盐沼植被地表覆盖信息。结果表明:(1)相较传统监测方法,本文所构建的滨海盐沼植被精细化提取方法能够对滨海盐沼植被进行有效细分和监测;(2)2000-2020年,芦苇和互花米草面积呈扩张趋势,碱蓬面积不断缩减;(3)盐城三种典型盐沼植被NDVI值呈现不同变化特征;(4)降水对盐沼植被生长的影响较为显著,气温对盐沼植被生长的直接影响较小。研究结果可为盐城盐沼湿地自然遗产保护以及湿地生态可持续发展提供科学支撑。 展开更多
关键词 Google Earth engine 盐沼植被 特征提取 随机森林分类法 时间谐波分析
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Equivalent series system to model a multiple friction pendulum system with numerous sliding interfaces for seismic analyses 被引量:7
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作者 C.S.Tsai H.C.Su T.C.Chiang 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2014年第1期85-99,共15页
Current structural analysis software programs offer few if any applicable device-specifi c hysteresis rules or nonlinear elements to simulate the precise mechanical behavior of a multiple friction pendulum system(MFPS... Current structural analysis software programs offer few if any applicable device-specifi c hysteresis rules or nonlinear elements to simulate the precise mechanical behavior of a multiple friction pendulum system(MFPS) with numerous sliding interfaces.Based on the concept of subsystems,an equivalent series system that adopts existing nonlinear elements with parameters systematically calculated and mathematically proven through rigorous derivations is proposed.The aim is to simulate the characteristics of sliding motions for an MFPS isolation system with numerous concave sliding interfaces without prior knowledge of detailed information on the mobilized forces at various sliding stages.An MFPS with numerous concave sliding interfaces and one articulated or rigid slider located between these interfaces is divided into two subsystems: the fi rst represents the concave sliding interfaces above the slider,and the second represents those below the slider.The equivalent series system for the entire system is then obtained by connecting those for each subsystem in series.The equivalent series system is validated by comparing numerical results for an MFPS with four sliding interfaces obtained from the proposed method with those from a previous study by Fenz and Constantinou.Furthermore,these numerical results demonstrate that an MFPS isolator with numerous concave sliding interfaces,which may have any number of sliding interfaces,is a good isolation device to protect structures from earthquake damage through appropriate designs with controllable mechanisms. 展开更多
关键词 seismic isolation base isolation earthquake engineering multiple friction pendulum system structural control mathematical modeling equivalent series system
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基于TDengine的EAST工程数据监控系统 被引量:3
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作者 丁煦航 奚维斌 +1 位作者 谢杰 陈子鸣 《自动化与仪表》 2022年第7期16-19,25,共5页
工程数据监控分析对于全超导托卡马克装置EAST的安全运行分析至关重要,随着工程信号数据规模的增大以及各子系统之间数据多源异构问题的凸显,导致数据孤岛出现,不利于对工程数据进行深入实验分析和装置安全保护。该文根据工程信号的数... 工程数据监控分析对于全超导托卡马克装置EAST的安全运行分析至关重要,随着工程信号数据规模的增大以及各子系统之间数据多源异构问题的凸显,导致数据孤岛出现,不利于对工程数据进行深入实验分析和装置安全保护。该文根据工程信号的数据特点和实际应用场景,创新性的使用基于超级表结构的列存储模型,通过单采集点单表的形式存储聚变工程数据。使用TDengine和Flink流式处理建立了面向工程信号分析监控的数据仓库,有效地整合工程信号数据并满足聚变实验多维度分析需求,极大地降低存储空间成本和提高检索效率。使用Grafana提供易用灵活的可视化模块和多样的监控报警规则,帮助实验人员对工程信号有更深入的探索分析。 展开更多
关键词 时序数据库 实时监控 EAST 工程数据
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A Novel Search Engine for Internet of Everything Based on Dynamic Prediction 被引量:1
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作者 Hui Lu Shen Su +1 位作者 Zhihong Tian Chunsheng Zhu 《China Communications》 SCIE CSCD 2019年第3期42-52,共11页
In recent years, with the rapid development of sensing technology and deployment of various Internet of Everything devices, it becomes a crucial and practical challenge to enable real-time search queries for objects, ... In recent years, with the rapid development of sensing technology and deployment of various Internet of Everything devices, it becomes a crucial and practical challenge to enable real-time search queries for objects, data, and services in the Internet of Everything. Moreover, such efficient query processing techniques can provide strong facilitate the research on Internet of Everything security issues. By looking into the unique characteristics in the IoE application environment, such as high heterogeneity, high dynamics, and distributed, we develop a novel search engine model, and build a dynamic prediction model of the IoE sensor time series to meet the real-time requirements for the Internet of Everything search environment. We validated the accuracy and effectiveness of the dynamic prediction model using a public sensor dataset from Intel Lab. 展开更多
关键词 IoE SEARCH engine IoE SECURITY real-time SEARCH MODEL dynamic PREDICTION MODEL time series PREDICTION
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Hydrodynamic characteristics of a typical karst spring system based on time series analysis in northern China 被引量:4
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作者 Yi Guo Feng Wang +5 位作者 Da-jun Qin Zhan-feng Zhao Fu-ping Gan Bai-kun Yan Juan Bai Haji Muhammed 《China Geology》 2021年第3期433-445,共13页
In order to study the hydrodynamic characteristics of the karst aquifers in northern China,time series analyses(correlation and spectral analysis in addition with hydrograph recession analysis)are applied on Baotu Spr... In order to study the hydrodynamic characteristics of the karst aquifers in northern China,time series analyses(correlation and spectral analysis in addition with hydrograph recession analysis)are applied on Baotu Spring and Heihu Spring in Jinan karst spring system,a typical karst spring system in northern China.Results show that the auto-correlation coefficient of spring water level reaches the value of 0.2 after 123 days and 117 days for Baotu Spring and Heihu Spring,respectively.The regulation time obtained from the simple spectral density function in the same period is 187 days and 175 days for Baotu Spring and Heihu Spring.The auto-correlation coefficient of spring water level reaches the value of 0.2 in 34-82 days,and regulation time ranges among 40-59 days for every single hydrological year.The delay time between precipitation and spring water level obtained from cross correlation function is around 56 days for the period of 2012-2019,and varies among 30-79 days for every single hydrological year.In addition,the spectral bands in cross amplitude functions and gain functions are small with 0.02,and the values in the coherence functions are small.All these behaviors illustrate that Jinan karst spring system has a strong memory effect,large storage capacity,noticeable regulation effect,and time series analysis is a useful tool for studying the hydrodynamic characteristics of karst spring system in northern China. 展开更多
关键词 Karst spring Karst aquifer HYDRODYNAMIC Time series analysis Correlation analysis Spectral analysis Hydrogeological survey engineering Jinan Shandong Province China
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Integrated Statistical and Engineering Process Control Based on Smooth Transition Autoregressive Model 被引量:1
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作者 张晓蕾 何桢 《Transactions of Tianjin University》 EI CAS 2013年第2期147-156,共10页
Traditional studies on integrated statistical process control and engineering process control (SPC-EPC) are based on linear autoregressive integrated moving average (ARIMA) time series models to describe the dynamic n... Traditional studies on integrated statistical process control and engineering process control (SPC-EPC) are based on linear autoregressive integrated moving average (ARIMA) time series models to describe the dynamic noise of the system.However,linear models sometimes are unable to model complex nonlinear autocorrelation.To solve this problem,this paper presents an integrated SPC-EPC method based on smooth transition autoregressive (STAR) time series model,and builds a minimum mean squared error (MMSE) controller as well as an integrated SPC-EPC control system.The performance of this method for checking the trend and sustained shift is analyzed.The simulation results indicate that this integrated SPC-EPC control method based on STAR model is effective in controlling complex nonlinear systems. 展开更多
关键词 statistical process control engineering process control time series STAR model AUTOCORRELATION
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Time Sequence Change-Point Model of Electrostatic State Parameters of Aircraft Engine 被引量:2
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作者 Fu Yu Wei Dongdong +1 位作者 Zuo Hongfu Feng Zhengxing 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2018年第1期126-134,共9页
Electrostatic monitoring technology of particle charging information can facilitate online monitoring of aero-engine,which effectively enhances engine fault diagnosis and health managements.Unlike traditional engine s... Electrostatic monitoring technology of particle charging information can facilitate online monitoring of aero-engine,which effectively enhances engine fault diagnosis and health managements.Unlike traditional engine state monitoring technologies,aircraft engine monitoring by gas path electrostatic monitoring not only covers the predicted information source itself,but also detects the information that can provide an early warnings for initial fault states through gas path charging levels.This paper establishes a non-stationary time sequence change-point model for anomaly recognition of electrostatic signals based on change-point theory combined with difference method of non-stationary time series.Finally,electrostatic induction data were utilized by the engine life test for a particular aircraft to validate the proposed algorithm.The results indicate that the activity level and the event rate were0.5—0.8(nc)and 50%,respectively,which were far greater than 4—12(pc)and 0—4% under normal working conditions of the engine. 展开更多
关键词 AERO-engine STATE identification ELECTROSTATIC monitoring technology time series CHANGE-POINT STATISTICS
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Key Techniques of High-voltage and Large-capacity Series Hybrid Active Power Filters 被引量:10
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作者 LIU Jianben CHEN Qiaofu +1 位作者 DAI Shaojun HE Guanjin 《中国电机工程学报》 EI CSCD 北大核心 2013年第12期I0001-I0022,179,共22页
基于基波磁通补偿的串联混合型有源电力滤波器(active power filter,APF)应用于高电压、大容量的谐波抑制场合时,受变压器励磁支路谐波电压的影响,逆变器不能等效为基波电流源,其输出电流将含有大量的谐波,从而影响滤波效果。以逆变... 基于基波磁通补偿的串联混合型有源电力滤波器(active power filter,APF)应用于高电压、大容量的谐波抑制场合时,受变压器励磁支路谐波电压的影响,逆变器不能等效为基波电流源,其输出电流将含有大量的谐波,从而影响滤波效果。以逆变器为核心,推导出在励磁支路谐波压降影响下的串联变压器的谐波等效阻抗。并以此为基础,从理论上分析励磁电感和变比对串联变压器谐波等效阻抗和APF滤波效果的影响。仿真结果验证了理论分析的正确性。最后,针对广东某厂10kV、1MVA电力负荷,研制一套基于基波磁通补偿的串联混合型有源滤波器工程样机,取得非常好的滤波效果。 展开更多
关键词 混合型有源电力滤波器 高电压 大容量 技术 脉冲宽度调制 等效阻抗 过滤效果 磁通补偿
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Research on Fault Prediction for Marine Diesel Engines
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作者 Zhengyang Qi Yunsong Qi Guangpeng Hu 《Journal of Computer and Communications》 2020年第8期36-44,共9页
Condition-based maintenance based on fault prediction has been widely concerned by the industry. Most of the contributions on fault prediction are based on various sensor data and mathematical models of the equipment.... Condition-based maintenance based on fault prediction has been widely concerned by the industry. Most of the contributions on fault prediction are based on various sensor data and mathematical models of the equipment. The complexity of the model and data signal is the key factor affecting the practicability of the model. In addition, even for the same type and batch of equipment, the manufacturing process, operation environment and other factors also affect the model parameters. In this paper, a series event model is conducted to predict the fault of marine diesel engines. Numerical example illustrates that the proposed event model is feasible. 展开更多
关键词 Condition-Based Maintenance series Events Fault Prediction Marine Diesel engine
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基于Pro/Engineer族表的深沟球轴承系列化设计研究
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作者 徐晓昂 张雪文 付克祥 《湖南农机》 2014年第5期84-86,共3页
基于Pro/Engineer族表功能,研究了深沟球轴承的系列化设计方法,解决了深沟球轴承的重复设计问题。该设计方法可以为其他零件的设计提供参考,特别是对于标准件和常用件的设计,比如螺栓、螺母、垫圈、键、销、轴承、齿轮、联轴器等标准件... 基于Pro/Engineer族表功能,研究了深沟球轴承的系列化设计方法,解决了深沟球轴承的重复设计问题。该设计方法可以为其他零件的设计提供参考,特别是对于标准件和常用件的设计,比如螺栓、螺母、垫圈、键、销、轴承、齿轮、联轴器等标准件和通用件的系列化设计具有借鉴作用。 展开更多
关键词 PRO/engineER 族表 深沟球轴 系列化 设计研究
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通过PRO ENGINEER计算系列化气缸余隙容积
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作者 孙建 浦继平 张国芬 《压缩机技术》 2012年第1期45-47,共3页
为了提高气缸整体的设计质量,节约成本,对气缸进行优化设计。利用了PRO ENGINEER三维模型设计的优势,实现了产品设计时所需要的气缸重量、余隙容积等的计算,提高了工作效率。
关键词 气缸 余隙容积 系列化 三维模型 PRO engineER
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基于ARIMA的航空发动机状态预测研究
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作者 陈永展 袁涛 +1 位作者 王小飞 刘茂泽 《电子设计工程》 2025年第1期61-65,共5页
为解决传统航空发动机状态预测方法预测精度低的问题,提出一种基于ARIMA的航空发动机状态预测方法,通过分析传统航空发动机状态预测使用单一参数的局限性,建立了航空发动机整体数据的ARIMA航空发动机评估模型。在某型航空发动机的状态... 为解决传统航空发动机状态预测方法预测精度低的问题,提出一种基于ARIMA的航空发动机状态预测方法,通过分析传统航空发动机状态预测使用单一参数的局限性,建立了航空发动机整体数据的ARIMA航空发动机评估模型。在某型航空发动机的状态预测实验中,验证基于ARI⁃MA的航空发动机时序预测方法具有较高的准确率和实用性。 展开更多
关键词 航空发动机 时间序列 预测 飞行参数
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基于规则引擎的煤矿透明地质物联网接入系统开发研究
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作者 邓良 晏俊生 李鹏 《煤炭技术》 CAS 2025年第1期234-237,共4页
随着我国煤矿智能化建设的快速推进,以及海量煤矿地质相关数据的不断积累,统一、安全、智能、高效的煤矿透明地质平台建设已经成为了重要研发方向。以物联网,时序存储,规则引擎等技术为基础,分析了海量多源异构煤矿透明地质数据的接入... 随着我国煤矿智能化建设的快速推进,以及海量煤矿地质相关数据的不断积累,统一、安全、智能、高效的煤矿透明地质平台建设已经成为了重要研发方向。以物联网,时序存储,规则引擎等技术为基础,分析了海量多源异构煤矿透明地质数据的接入、管理、存储,研发了煤矿透明地质物联网接入系统。设计了异构传感器设备动态数据的协议接入、存储、管理及推送服务。系统的研发有效降低了多源异构协议数据的接入与管理成本,提高了煤矿系统实时数据的可用性、可扩展性、可访问性。在察哈素煤矿透明地质保障系统建设中,系统高效完善了系统动态数据接入、存储和分析,将系统数据接入成本从5人/月降低至0.5人/月,极大提升了系统运行效率,缩减了系统运维成本,达到预期建设效果。 展开更多
关键词 物联网 时序数据 透明地质 规则引擎 多源异构数据
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A scalable software package for time series reconstruction of remote sensing datasets on the Google Earth Engine platform 被引量:1
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作者 Jie Zhou Massimo Menenti +6 位作者 Li Jia Bo Gao Feng Zhao Yilin Cui Xuqian Xiong Xuan Liu Dengchao Li 《International Journal of Digital Earth》 SCIE EI 2023年第1期988-1007,共20页
Spatiotemporal residual noise in terrestrial earth observation products,often caused by unfavorable atmospheric conditions,impedes their broad applications.Most users prefer to use gap-filled remote sensing products w... Spatiotemporal residual noise in terrestrial earth observation products,often caused by unfavorable atmospheric conditions,impedes their broad applications.Most users prefer to use gap-filled remote sensing products with time series reconstruction(TSR)algorithms.Applying currently available implementations of TSR to large-volume datasets is time-consuming and challenging for non-professional users with limited computation or storage resources.This study introduces a new open-source software package entitled‘HANTS-GEE’that implements a well-known and robust TSR algorithm,i.e.Harmonic ANalysis of Time Series(HANTS),on the Google Earth Engine(GEE)platform for scalable reconstruction of terrestrial earth observation data.Reconstruction tasks can be conducted on user-defined spatiotemporal extents when raw datasets are available on GEE.According to site-based and regional-based case evaluation,the new tool can effectively eliminate cloud contamination in the time series of earth observation data.Compared with traditional PC-based HANTS implementation,the HANTS-GEE provides quite consistent reconstruction results for most terrestrial vegetated sites.The HANTS-GEE can provide scalable reconstruction services with accelerated processing speed and reduced internet data transmission volume,promoting algorithm usage by much broader user communities.To our knowledge,the software package is thefirst tool to support full-stack TSR processing for popular open-access satellite sensors on cloud platforms. 展开更多
关键词 Time series reconstruction remote sensing Google Earth engine HANTS GAP-FILLING
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改进多变量时序模型的露天涌水量预测 被引量:1
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作者 王孝东 杨懿杰 +4 位作者 吕玉琪 刘唱 陈炫中 谢博 杜青文 《安全与环境学报》 CAS CSCD 北大核心 2024年第8期2994-3004,共11页
露天矿坑涌水量变化影响着边坡的稳定性、工程进度和设备使用寿命,在矿山汛期,涌水量的突增给矿山带来巨大的安全隐患。为了做好涌水量突增安全防范,对于汛期涌水量的精准预测成为矿山安全生产的一大难题。针对这一问题,提出了一种基于... 露天矿坑涌水量变化影响着边坡的稳定性、工程进度和设备使用寿命,在矿山汛期,涌水量的突增给矿山带来巨大的安全隐患。为了做好涌水量突增安全防范,对于汛期涌水量的精准预测成为矿山安全生产的一大难题。针对这一问题,提出了一种基于改进蜣螂优化算法(Sparrow Initialization Dung Beetle Optimizer,SIDBO)优化变分模态分解(Variational Mode Decomposition,VMD)-双向长短周期神经网络(Bi-directional Long Short-Term Memory,BiLSTM)时序模型预测露天矿坑涌水量的方法。对于难以确定VMD参数的问题,利用改进蜣螂优化算法寻找最优VMD核心参数组合。SIDBO算法首先基于t分布的差分策略优化勘探阶段,使用最优解和第二解中位搜寻策略增强全局最优解搜索能力,最后采用麻雀优化算法优化开发阶段。结果表明,与VMD-SIDBO-LSTM等模型相比较,SIDBO-VMD-SIDBO-BiLSTM模型预测精度更高,均方根误差(R_(MSE))、平均绝对误差(M_(AE))、平均绝对百分比误差(M_(APE))、R^(2)分别为5.96、4.96、0.41%、0.98,并将该模型与传统地质方法——水均衡法在实际工程实例中进行对比,该时序模型相对于水均衡法对于矿坑汛期涌水量预测精度提升了3.8%,为露天矿汛期涌水量预测提供了新的技术方法与思路。 展开更多
关键词 安全工程 算法优化 时序预测 变分模态分解(VMD) 深度学习
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