Results 51 to 60 of about 836,632 (215)
Discussion on Key Technology of High-speed Maglev Railway Bridge Structures in Low Vacuum Tube
As a new type of transportation system, the vacuum tube high-speed traffic has become a research hotspot and a key development direction in the world. The vacuum tube pressure, blockage ratio, aerodynamic drag, maglev system, vehicle body, etc.
Daliang ZHAO, Shubin LIU, Bing WANG
doaj
This paper proposes a novel power loss reduction PWM (PLRPWM) strategy for three‐level neutral point clamped inverters. The proposed strategy aims to achieve multi‐objective optimisation by balancing low output harmonics, reduced switching losses and a balanced neutral‐point potential. ABSTRACT Three‐level neutral point clamped (3L‐NPC) converters have
Chaoqun Xiang +5 more
wiley +1 more source
For marine development in harsh sea states, floating-body salvage equipment serves as critical support infrastructure. Aiming at the challenges of nonlinear dead-zone, model uncertainty, and actuator failures in the wave compensation systems of such ...
Zhiqiang Xu +4 more
doaj +1 more source
Bibliometric Analysis of Transport Infrastructure Hypernetwork: Review and Prospects
The transport infrastructure is transitioning into a multilayer, multifunctional hypernetwork form, posing challenges to traditional single‐mode planning methods in analyzing cross‐system risk transmission mechanisms and achieving spatiotemporal resource optimization. This leads to suboptimal system synergy and resilience.
Zhiguo Shao +4 more
wiley +1 more source
A Review of Levitation Control Methods for Low- and Medium-Speed Maglev Systems
Maglev transportation is a highly promising form of transportation for the future, primarily due to its friction-free operation, exceptional comfort, and low risk of derailment.
Qi Zhu, Su-Mei Wang, Yi-Qing Ni
doaj +1 more source
Optimal Model Order Reduction Technique for Dynamic Motor Vehicle Suspension Systems
High‐fidelity full‐vehicle suspension models with hundreds to thousands of states are computationally prohibitive for real‐time control and virtual prototyping. Existing model reduction techniques distribute approximation effort uniformly across the entire frequency spectrum, producing unnecessarily large errors in the (6–10)‐Hz band where human ...
Kife I. Bin Iqbal +4 more
wiley +1 more source
Building Weight Measurement by Human Shaker
The weight of a building is a fundamental parameter that plays a critical role in structural hazard assessment, finite element model updating, foundation settlement prediction, and other related fields. At present, two primary approaches are commonly used to estimate building weight: calculation based on design drawings and estimation from the total ...
Yang Li +5 more
wiley +1 more source
Research on Necessity and Development Strategy of Developing High-speed Maglev in China
On the basis of reviewing the "dispute between high-speed maglev and high-speed railway" in the 1990s, the facing new situations and changes in the development of high-speed maglev in China were analyzed.
Houwen ZHOU, Xu CHEN
doaj
Application and further development of Maglev transportation in China
Since the high-speed maglev line in Shanghai was put into operation in 2003, it has been running safely for 15 years, maintaining the highest speed of public ground traffic 430 km/h and 99.8~99.9% punctuality. Since 2001, China ministry of science and technology (MOST) has been supporting the research and development of high speed maglev transportation
Guobin Lin, Xiongwei Sheng
openaire +2 more sources
This article introduces a smart solution for the design of a brush DC motor with a winding‐free rotor (DCFR). The proposed model simplifies manufacturing, reduces material costs, and enhances efficiency. Designed for variable speed and solar power applications, the DCFR achieves 91.8% efficiency and a 21% weight reduction compared to conventional ...
Dmytro Ivliev +5 more
wiley +1 more source

