发布求助
文献互助 智能选刊 最新文献

Engineering Mechanics 2019最新文献

筛选
英文 中文
A LINEAR-QUADRATIC STABILIZATION SYSTEM FOR A CANARD-CONTROLLED MISSILE 鸭翼导弹线性二次镇定系统
Engineering Mechanics 2019 Pub Date : 2019-05-13 DOI: 10.21495/71-0-73
W. Bużantowicz
{"title":"A LINEAR-QUADRATIC STABILIZATION SYSTEM FOR A CANARD-CONTROLLED MISSILE","authors":"W. Bużantowicz","doi":"10.21495/71-0-73","DOIUrl":"https://doi.org/10.21495/71-0-73","url":null,"abstract":": This paper examines a linear-quadratic stabilization system for a canard-controlled missile. An analytical method for selecting the weighting elements of the gain matrix in the feedback loop is also proposed, eliminating the need for an iterative solution to the Riccati equation. The proposed solution was evaluated using simulation tests.","PeriodicalId":197313,"journal":{"name":"Engineering Mechanics 2019","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127125030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
SUB-SYNCHRONOUS VIBRATIONS OF A ROTOR SUPPORTED ON POORLY LUBRICATED JOURNAL BEARINGS 支承在润滑不良的轴颈轴承上的转子的次同步振动
Engineering Mechanics 2019 Pub Date : 2019-05-13 DOI: 10.21495/71-0-339
L. Smolík, P. Polach, J. Rendl
{"title":"SUB-SYNCHRONOUS VIBRATIONS OF A ROTOR SUPPORTED ON POORLY LUBRICATED JOURNAL BEARINGS","authors":"L. Smolík, P. Polach, J. Rendl","doi":"10.21495/71-0-339","DOIUrl":"https://doi.org/10.21495/71-0-339","url":null,"abstract":": This paper aims to the modelling and investigation of sub-synchronous vibrations of a rotor supported on poorly lubricated journal bearings. Bores for an oil supply are located in the lower halves of bearing shells. It is shown that the poor lubrication of the described bearings may lead to an occurrence of stable vibrations at the frequency ca. 0.9 to the rotor speed. Simulations are performed using a multi-body approach for modelling rotating systems. Forces acting in journal bearings are evaluated employing a mass-conserving finite element solution of the Reynolds equation.","PeriodicalId":197313,"journal":{"name":"Engineering Mechanics 2019","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129628744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
PROCESSING OF HIGH-SPEED CAMERA IMAGES OF HOPKINSON BAR EXPERIMENTS USING DIGITAL IMAGE CORRELATION 利用数字图像相关技术处理高速摄像机霍普金森杆实验图像
Engineering Mechanics 2019 Pub Date : 2019-05-13 DOI: 10.21495/71-0-29
M. Adorna, M. Neuhäuserová, T. Fíla, J. Falta, P. Koudelka, P. Zlámal
{"title":"PROCESSING OF HIGH-SPEED CAMERA IMAGES OF HOPKINSON BAR EXPERIMENTS USING DIGITAL IMAGE CORRELATION","authors":"M. Adorna, M. Neuhäuserová, T. Fíla, J. Falta, P. Koudelka, P. Zlámal","doi":"10.21495/71-0-29","DOIUrl":"https://doi.org/10.21495/71-0-29","url":null,"abstract":": In this paper, digital image correlation method (DIC) is introduced as a tool for evaluation of high strain-rate experiments perfomed using Hopkinson Bar apparatus. Samples of advanced cellular materials with predefined periodic structure and negative Poisson’s ratio (auxetic structures) were investigated in this study. In-house Hopkinson Pressure Bar apparatus was used to perform the impact experiments and the experimental setup was observed using a pair of high-speed cameras. Custom DIC software tool was used to evaluate high-speed cameras records. Selected representative results of DIC applications on Hopkinson Bar experiments are provided in this paper.","PeriodicalId":197313,"journal":{"name":"Engineering Mechanics 2019","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129215123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NUMERICAL SIMULATION OF SEAL LEAKAGE FLOWS IN AXIAL TURBINE STAGE 轴向涡轮级密封泄漏流动的数值模拟
Engineering Mechanics 2019 Pub Date : 2019-05-13 DOI: 10.21495/71-0-343
P. Straka, J. Pelant
{"title":"NUMERICAL SIMULATION OF SEAL LEAKAGE FLOWS IN AXIAL TURBINE STAGE","authors":"P. Straka, J. Pelant","doi":"10.21495/71-0-343","DOIUrl":"https://doi.org/10.21495/71-0-343","url":null,"abstract":"","PeriodicalId":197313,"journal":{"name":"Engineering Mechanics 2019","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127899163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
WEAR OF ELASTIC FOUNDATION WITH COATING BY SYSTEM OF RIGID PUNCHES 刚性冲头系统对涂覆弹性地基的磨损
Engineering Mechanics 2019 Pub Date : 2019-05-13 DOI: 10.21495/71-0-181
K. Kazakov
{"title":"WEAR OF ELASTIC FOUNDATION WITH COATING BY SYSTEM OF RIGID PUNCHES","authors":"K. Kazakov","doi":"10.21495/71-0-181","DOIUrl":"https://doi.org/10.21495/71-0-181","url":null,"abstract":"This article is devoted to the study of the wear problem of elastic layer with nonuniform coating by the system of plane rigid punches. It is assumed that punches has different lengths. A mathematical model of the problem is obtained. It is a system of mixed integral equations (with Volterra and Fredholm operators) with additional conditions. The analytical solution of the problem is presented. In the solution coating nonuniformity is represented by separate factor. It allows one to make calculations with high accuracy even if coating nonuniformity is described by rapidly changing function.","PeriodicalId":197313,"journal":{"name":"Engineering Mechanics 2019","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122699137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
ELECTROCHEMICAL MACHINING OF CONICAL SURFACES 锥形表面的电化学加工
Engineering Mechanics 2019 Pub Date : 2019-05-13 DOI: 10.21495/71-0-327
J. Sawicki
{"title":"ELECTROCHEMICAL MACHINING OF CONICAL SURFACES","authors":"J. Sawicki","doi":"10.21495/71-0-327","DOIUrl":"https://doi.org/10.21495/71-0-327","url":null,"abstract":"Keywords: The paper presents mathematical modelling of contactless ECM of conical surfaces. Applying the known-from-literature equation describing the evolution of the machined surface shape and the flow equation for the mixture or electrolyte and hydrogen in the interelectrode gap, there were determined parameters characteristic for ECM. For the machining parameters set, the calculations results for selected ECM parameters are shown in diagrams.","PeriodicalId":197313,"journal":{"name":"Engineering Mechanics 2019","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123291885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ACOUSTIC WAVES IN FLUID-SATURATED PERIODIC SCAFFOLDS 流体饱和周期支架中的声波
Engineering Mechanics 2019 Pub Date : 2019-05-13 DOI: 10.21495/71-0-319
E. Rohan, R. Cimrman
{"title":"ACOUSTIC WAVES IN FLUID-SATURATED PERIODIC SCAFFOLDS","authors":"E. Rohan, R. Cimrman","doi":"10.21495/71-0-319","DOIUrl":"https://doi.org/10.21495/71-0-319","url":null,"abstract":"","PeriodicalId":197313,"journal":{"name":"Engineering Mechanics 2019","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126881971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
REAL-TIME DIAGNOSTICS FOR ROS RUNNING SYSTEMS BASED ON PROBABILISTIC PATTERNS IDENTIFICATION 基于概率模式识别的ros运行系统实时诊断
Engineering Mechanics 2019 Pub Date : 2019-05-13 DOI: 10.21495/71-0-383
S. Vechet, J. Krejsa
{"title":"REAL-TIME DIAGNOSTICS FOR ROS RUNNING SYSTEMS BASED ON PROBABILISTIC PATTERNS IDENTIFICATION","authors":"S. Vechet, J. Krejsa","doi":"10.21495/71-0-383","DOIUrl":"https://doi.org/10.21495/71-0-383","url":null,"abstract":"Autonomous mobile robots consists of various software modules to achieve given goal, including solving complex navigation tasks as localization, mapping or path planning. These tasks are highly dependent on the quality of data measured and gathered from hardware subsystems. Using Robot Operating System (ROS) as integration basis reduces the development effort and time to market. While ROS framework itself is considered as reliable and stable to run even soft real-time tasks, in case of any internal failures on data misreadings can be problematic to debug or even identify the problem for common user. Due to this unpleasant situations we develop a virtual assistant, internally represented as diagnostic expert system, to help users to identify and possibly fix the problem.","PeriodicalId":197313,"journal":{"name":"Engineering Mechanics 2019","volume":"51 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130694135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
EFFECT OF PIPE INCLINATION ON LOCAL CONCENTRATION AND FLOW BEHAVIOUR OF SETTLING SLURRY 管道倾角对沉降浆局部浓度和流动特性的影响
Engineering Mechanics 2019 Pub Date : 2019-05-13 DOI: 10.21495/71-0-391
P. Vlasák, Z. Chára, V. Matoušek, M. Kesely, J. Konfršt, M. Mildner
{"title":"EFFECT OF PIPE INCLINATION ON LOCAL CONCENTRATION AND FLOW BEHAVIOUR OF SETTLING SLURRY","authors":"P. Vlasák, Z. Chára, V. Matoušek, M. Kesely, J. Konfršt, M. Mildner","doi":"10.21495/71-0-391","DOIUrl":"https://doi.org/10.21495/71-0-391","url":null,"abstract":"","PeriodicalId":197313,"journal":{"name":"Engineering Mechanics 2019","volume":"336 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115456406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A STOCHASTIC SOLUTION TO THE DYNAMICS OF LOAD MOVEMENT ON A TRANSPORT LINE 运输线上载物运动动力学的随机解
Engineering Mechanics 2019 Pub Date : 2019-05-13 DOI: 10.21495/71-0-275
P. Pavlíček, K. Frydrýšek
{"title":"A STOCHASTIC SOLUTION TO THE DYNAMICS OF LOAD MOVEMENT ON A TRANSPORT LINE","authors":"P. Pavlíček, K. Frydrýšek","doi":"10.21495/71-0-275","DOIUrl":"https://doi.org/10.21495/71-0-275","url":null,"abstract":"","PeriodicalId":197313,"journal":{"name":"Engineering Mechanics 2019","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123102843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信