云南高校图书馆联盟文献共享服务平台- TAMPING

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Improving lateral track strength after ballast maintenance: 《Railway Sciences》2025年第2期141-158,共18页Stephen Wilk Dingqing Li; Purpose–MxV Rail conducted multiple single tie push tests(STPTs)between 2020 and 2023 to assess the changes in lateral tie resistance from tonnage accumulation,dynamic track stabilizers(DTS),tie type and ballast cond...; 关键词：Lateral track strength Single tie push test(STPT) Track buckle TAMPING Shoulder width Crib height

Dynamic squeezing behavior of tamping machine in railway maintenance: 《High-Speed Railway》2024年第4期241-247,共7页Liang Gao Shunwei Shi Chang Liu Yixiong Xiao Chunyu Wang Yuze Wang; supported by the Postdoctoral Fellowship Program of China Postdoctoral Science Foundation under Grant Number GZC20240099;the Fundamental Research Funds for the Central Universities under Grant Number 2024XKRC034 and 2022JBQY009。; Tamping squeeze is essential for maintaining ballasted tracks.Previous studies have simulated squeezing behavior as a linear motion with a constant squeezing distance,which is unsuitable for various ballast beds in th...; 关键词：Ballast bed Tamping maintenance Squeezing behavior Compacting motion Releasing motion

Tamping the movement of the laser absorption cutoff position using gold foam hohlraum: 《Plasma Science and Technology》2024年第5期56-61,共6页张璐李丽灵林稚伟董云松景龙飞郑建华况龙钰黎航郑金华张继彦宋天明张志宇赵阳牛高杨冬杨家敏丁永坤; supported by the Presidential Foundation of China Academy of Engineering Physics (No. YZJJLX 2018011);National Natural Science Foundation of China (Nos. 11775204, 11734013, 12105269 and 12004351); In indirect-driven laser fusion experiments,the movement of the laser absorption layer will distort the radiation uniformity on the capsule.The gold foam has advantages in symmetry control and lowering wall plasma blo...; 关键词：hohlraum symmetry laser absorption plasma blowoff gold foam

Effects of Dissimilar Alumina Particulates on Microstructure and Properties of Cold-Sprayed Alumina/A380 Composite Coatings被引量：3: 《Acta Metallurgica Sinica(English Letters)》2019年第12期1449-1458,共10页Xiang Qiu Naeem ul Haq Tariq Lu Qi Jun-Rong Tang Xin-Yu Cui Hao Du Ji-Qiang Wang Tian-Ying Xiong; financially supported by the National Natural Science Foundation of China (Nos.51671205 and 51801217); In this study,alumina/A380 composite coatings were fabricated by cold spray.The influence of alumina particulates,morphology(spherical and irregular)and content on the deposition behavior of the coatings(including sur...; 关键词：Cold spray Alumina particles Microstructure Micro-tamping effect Embedding effect

New insights into the in-process densification mechanism of cold spray Al coatings: Low deposition efficiency induced densification被引量：3: 《Journal of Materials Science & Technology》2019年第3期427-431,共5页Richard Jenkins Shuo Yin Barry Aldwell Morten Meyer Rocco Lupoi; supported financially by the European Space Agency (No. 4000112844/14/NL/FE);European Space Agency (No. 4000112844/14/NL/FE);the Irish Research Council (No. GOIPD2017-912);the Marie Curie Actions project number 333663 (FP7-People-2012-CIG); This work details new insights into the in-process densification mechanism of cold spray Al coatings. The results show a trend counter to common observations: coating plastic deformation levels and coating density dec...; 关键词：Coating HARDNESS test PLASTIC deformation TAMPING

Backfill support＇s backfill and operation properties and evaluation被引量：4: 《Journal of Central South University》2018年第6期1524-1534,共11页ZHANG Qiang DU Chang-long ZHANG Ji-xiong WANG Jia-qi LI Meng QI Wen-yue; Project(2017QNA21)supported by Fundamental Research Funds for the Central Universities,China;Project supported by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD),China; To ensure compacted backfilling, it is essential to ensure the reliability of the performance of a solid backfill support, key equipment for integrating backfilling and mining. To evaluate the backfilling performance ...; 关键词：backfilling coal mining backfill and operation properties tamping force vertical roof gap horizontal roofgap evaluation method

Numerical Analysis of the Soil Compaction Degree Under Multi-Location Tamping: 《Journal of Shanghai Jiaotong university(Science)》2017年第4期417-433,共17页王威窦锦钟陈锦剑王建华; the National Natural Science Foundation of China(No.41330633); Dynamic compaction (DC) is an efficient soil improvement technique. The previous numerical studies mainly focus on the soil response of single location tamping, but ignore the soil compaction degree under multilocatio...; 关键词：dynamic compaction(DC) soil improvement multi-tamping locations finite elements plastic volumetric strain

Structure optimal design research on backfill hydraulic support被引量：9: 《Journal of Central South University》2017年第7期1637-1646,共10页ZHANG Qiang ZHANG Ji-xiong QI Wen-yue ZHOU Nan TAI Yang; Project(2017QNA21)supported by the Fundamental Research Funds for the Central Universities of China;Project supported by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD),China; Backfill hydraulic support is the key equipment in achieving coal mining and solid backfilling simultaneously in solid backfill mining technology.Based on the summary and analysis of main types,basic structural proper...; 关键词：BACKFILL hydraulic support STRUCTURE optimal design four-bar LINKAGE REAR CANOPY TAMPING STRUCTURE

Mechanism of electro-hydraulic exciter for new tamping device被引量：6: 《Journal of Central South University》2014年第2期511-520,共10页刘毅龚国芳杨华勇韩冬杨学兰; Projects(50975252,51275499)supported by the National Natural Science Foundation of China;Project(2013CB035404)supported by the National Basic Research Program of China;Project(GZKF-201312)supported by Open Foundation of the State Key Laboratory of Fluid Power Transmission and Control,China; A new tamping device which is driven by an electrohydraulic exciter was proposed to overcome the limitations of mechanically driven devices.The double-rod oscillation cylinder drives the tamping arm to realize vibrati...; 关键词：tamping device spin valve oscillation cylinder electro-hydraulic exciter variable damping parametric analysis

Microstructure of a Variety of Cokes After Alkali Enrichment被引量：1: 《Journal of Iron and Steel Research International》2013年第7期45-49,共5页QI Cheng-lin ZHANG Jian-liang LIU Hong-quan KONG De-wen WANG Xiao-liu; It is difficult to distinguish tamping coke and top charging coke by conventional testing methods, such as cold strength, abrasion resistance, reactivity and strength after reaction. Some of tamping coket s properties...; 关键词：COKE ALKALI tamping coke top charging MICROSTRUCTURE

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