Results 91 to 100 of about 7,865 (221)

An Analysis of Key Influencing Factors for Prefabricated Building Hoisting Safety Based on the Fuzzy–Decision-Making Trial and Evaluation Laboratory and Analytic Network Process: Integrating Influence Mechanisms and Systemic Importance

Buildings
Construction safety has garnered extensive attention, among which the hoisting construction safety of prefabricated buildings constitutes a distinct concern warranting further focus, as it fundamentally differs from traditional cast-in situ construction.
Chunguang Chang, Zhuo Zuo, Beining Chang
doaj   +1 more source

Research on energy consumption evaluation and energy-saving design of cranes in service based on structure-mechanism coupling

Advances in Mechanical Engineering
Aiming at the problem that the life cycle energy consumption index of hoisting machinery is difficult to be objectively quantified, a crane energy consumption evaluation calculation method based on the working cycle of the service period is proposed, the
Xiaogang Qu, Maojie Zhao, Qisong Qi
doaj   +1 more source

Orbiter processing facility service platform failure and redesign [PDF]

In a high bay of the Orbiter Processing Facility (OPF) at the Kennedy Space Center, technicians were preparing the space shuttle orbiter Discovery for rollout to the Vehicle Assembly Building (VAB).
Harris, Jesse L.
core   +1 more source

Online Degradation Feature Extraction of Shore Bridge Gearbox based on Morphological Fractal and Sliding Window Weibull Fitting

Jixie chuandong, 2019
In order to solve the degenerative feature extraction issue of hoisting mechanism gearbox, an online extraction method for degeneration feature based on mathematical morphological fractal dimension and sliding window Weibull fitting is proposed. Firstly,
Dejian Sun, Xiong Hu, Bing Wang, Wei Wang, Jichang Lin   +4 more
doaj  

Analysis and research on electromechanical-pneumatic-mechanical braking performance of crane hoisting mechanism

Abstract As an important actuator of the crane, the hoisting mechanism adopts the composite braking method of electrical + mechanical braking under normal working conditions, and usually adopts the mechanical braking brake under emergency working conditions. In emergency situations, mechanical brake systems are commonly used.
Quan-Wei WANG, Xu-Yang BU, Cheng ZHOU, Tong-Xing GUO, Hao WEN   +4 more
openaire   +1 more source

Process-based carbon emission assessment of the cable-stayed anchored cantilever construction method: A case study of a 600-meter-scale arch bridge

Case Studies in Construction Materials
There is a growing need to quantify carbon emissions from bridge construction, while the field lacks systematic modeling approaches tailored to specific construction methods, especially in arch bridge engineering.
Kaizhong Xie, Machi Gong, Jianzhuang Xiao, Xiangshuo Guan, Zengyu Liu   +4 more
doaj   +1 more source

Behaviour of Steel Ropes in Multi-Sheave Systems of Tower Crane Hositing Mechanisms

Management Systems in Production Engineering
This article discusses issues related to tower cranes, a group of lifting machines used in the construction industry. Vertical transport on a building site is of paramount importance, accounting for approximately 50% of all construction works. Currently,
Midor Łukasz, Olszyna Grzegorz, Rokita Tomasz, Tytko Andrzej   +3 more
doaj   +1 more source

Automatic intrusion detection and warning method in the hoisting scenario integrated BIM and GPS

Alexandria Engineering Journal
Monitoring of intrusion at construction sites is crucial to ensure personnel safety. However, current systems struggle to automatically determine the spatial extents of hoisting areas and reliably assess worker movements in dynamic construction ...
Xuefeng Zhao, Haodong Chen, Meng Zhang, Dechun Lu, Zhe Sun   +4 more
doaj   +1 more source

Analisis Struktur Pada Girder Overhead Crane Swl 30 Ton [PDF]

, 2014
Overhead crane is a device used to move goods. Overhead cranes are very important during the production period, if there is a problem in the overhead crane, it can disrupt the production process.
Jefriansyah, J. (Jefriansyah), Ma'ruf, M. (Ma'ruf)   +1 more
core  

Energetically efficient, mediated mechanical system for precise control of hoisting operations

5 pages, 3 figures, 1 ...
Palmero, Mikel, Muga, Juan Gonzalo, Tobalina, Ander   +2 more
openaire   +2 more sources