Results 51 to 60 of about 152,650 (280)
ABSTRACT Collaborations with nonprofits can enhance firms' legitimacy, yet the relationship between their communication and corporate environmental legitimacy remains poorly understood. Furthermore, research lacks an analysis of the communication of business‐nonprofit collaborations through multiple actors' perspectives.
Andrea Rizzuni +3 more
wiley +1 more source
Development of an efficient finite element model for the dynamic analysis of the train-bridge interaction [PDF]
The design of high-speed railway bridges comprises a set of demands, from safety and serviceability aspects, to new types of equipment and construction solutions.
Azevedo, A., Calcada, R., Neves, Sérgio
core +1 more source
ABSTRACT The concept of predictive maintenance in advanced manufacturing systems is crucial from the point of view of resource efficiency in the era of high competitiveness forced by energy transformation in the digital economy. Against the backdrop of sustainability and the opportunities a data cooperative offers, the combination of predictive ...
Christian Schachtner +6 more
wiley +1 more source
Dynamic Analysis of a 4-Axles Railway Vehicle Model
The paper deals with using dynamic simulations in fields of construction, production and operating of railway vehicles. It contained process of dynamics solution of choices referent vehicle by the help special solution software - MSC ADAMS.
Zuzana Ondrova
doaj +1 more source
Development of a Tram-Train wheel profile for dual-operation running [PDF]
This paper explores the problematic interface between a Tram-Train vehicle and two very different railway infrastructures, detailing the analysis and design process required to develop an optimised wheel profile for dual operation running.
Allen, Paul, Crosbee, David
core
Influence of Embankments with Parapets on the Cross-Wind Turbulence Intensity at the Contact Wire of Railway Overheads [PDF]
Winds as an environmental factor can cause significant difficulties for the railway system operation. The railway overhead has been particularly vulnerable to cross-winds related problems, such as development of undamped oscillations due to galloping ...
Avila Sanchez, Sergio +2 more
core +2 more sources
Carbon emission assessment of tunnel infrastructures: From construction to operation
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long +4 more
wiley +1 more source
Aktív hűtés hatásainak vizsgálata 3D nyomtatás esetén
A 3D nyomtatás egyre szélesebb körben alkalmazott gyártási eljárás. A gépek és anyagok fejlődésével egyre több ember számára hozzáférhető ez a technológia, egyre egyszerűsödik az alkalmazása.
Péter Ficzere
doaj +1 more source
On the Lateral Vibration of Railway Vehicles.
巻ばね、板ばね及び搖枕釣を有する台車を備へた車輌を考へ、蛇行動なる左右的強制振動を受ける時の左右傾斜振動の運動方程式を觧いて、現在の国有鉄道車輌の左右振動に関する完全觧を得た。現在国有鉄道にて採用してゐる2軸台車に就て搖枕釣の作用を考察しようとし左右傾斜動の自己振動周期を求めた処在耒の傾斜釣の時は0.76及び1.82sにて、垂直釣とする時は0.80及び1.73sである。而して蛇行動による左右強制振動が共鳴する速度は傾斜釣にては31.8及び76.1km/hなるに対し、垂直釣にては33.4及び72.2km/hとなり、両者大差はないが速度による搖枕釣の搖れ角を考察するに低速度にては傾斜釣の方小であるが高速度にては大になる傾向あることは理論的計算及び実驗的結果に依て認められた。
openaire +2 more sources
Probabilistic simulation for the certification of railway vehicles [PDF]
The present dynamic certification process that is based on experiments has been essentially built on the basis of experience. The introduction of simulation techniques into this process would be of great interest.
Christine Funfschilling +9 more
core +3 more sources

