Structural design and mechanical performance evaluations of flexible and lightweight belt by CFRP

2020 ◽  
Vol 34 (07n09) ◽  
pp. 2040034
Author(s):  
Sung-Youl Bae ◽  
Yun-Hae Kim
Keyword(s):  
Performance Evaluation ◽  
Structural Design ◽  
Mechanical Performance ◽  
Steel Wire ◽  
Load Condition ◽  
Mechanical Tests ◽  
Wire Rope ◽  
High Rise ◽  
Reinforced Plastic ◽  
And Performance

This research presents the structural design and mechanical performance evaluation results of a lightweight belt for high-rise elevators. Weight reduction of elevator components is indispensable in developing ultra-high-rise elevators. In this study, the structural design and performance evaluation of high-rise elevator ropes were carried out. The weight of the newly designed Carbon Fiber Reinforced Plastic (CFRP) belt was reduced by 30% compared with the original steel wire rope. The structural analysis results of the CFRP belt showed that the design criteria were met on the design load condition of the belt. Also, mechanical tests were executed to verify the mechanical characteristics of the newly developed belt, with the results showing that the belt had sufficient structural performance compared with conventional steel wire rope.

scholarly journals Preparation and Performance Evaluation of Duotone 3D-Printed Polyetheretherketone as Oral Prosthetic Materials: A Proof-of-Concept Study

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1949
Author(s):  
Ling Ding ◽  
Wei Lu ◽  
Jiaqi Zhang ◽  
Chuncheng Yang ◽  
Guofeng Wu
Keyword(s):  
Titanium Dioxide ◽  
Performance Evaluation ◽  
Mechanical Performance ◽  
Mechanical Tests ◽  
Flexural Properties ◽  
Proof Of Concept ◽  
Tooth Color ◽  
Dental Application ◽  
3D Printed ◽  
And Performance

Literature has reported the successful use of 3D printed polyetheretherketone (PEEK) to fabricate human body implants and oral prostheses. However, the current 3D printed PEEK (brown color) cannot mimic the vivid color of oral tissues and thus cannot meet the esthetical need for dental application. Therefore, titanium dioxide (TiO2) and ferric oxide (Fe2O3) were incorporated into PEEK to prepare a series of tooth-color and gingival-color PEEK composites in this study. Through color measurements and mechanical tests, the color value and mechanical performance of the 3D printed PEEK composites were evaluated. In addition, duotone PEEK specimens were printed by a double nozzle with an interface between tooth-color and gingival-color parts. The mechanical performance of duotone PEEK with two different interfaces (horizontal and vertical) was investigated. With the addition of TiO2 and Fe2O3, the colors of 3D printed PEEK composites become closer to that of dental shade guides. 3D printed PEEK composites generally demonstrated superior tensile and flexural properties and hence have great potential in the dental application. In addition, duotone 3D printed PEEK with a horizontal interfacial orientation presented better mechanical performance than that with a vertical one.

scholarly journals Structural Design and Performance Evaluation of a Mid-story Seismic Isolated High-Rise Building

2017 ◽  
Vol 6 (3) ◽  
pp. 227-235 ◽  
Author(s):  
Masatoshi Tamari ◽  
Tadashi Yoshihara ◽  
Masato Miyashita ◽  
Nobuyuki Ariyama ◽  
Masataka Nonoyama
Keyword(s):  
Performance Evaluation ◽  
Structural Design ◽  
High Rise ◽  
High Rise Building ◽  
And Performance

scholarly journals Thermal Performance Analysis of Heat Collection Wall in High-Rise Building Based on the Measurement of Near-Wall Microclimate

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 2023
Author(s):  
Ruixin Li ◽  
Yiwan Zhao ◽  
Gaochong Lv ◽  
Weilin Li ◽  
Jiayin Zhu ◽  
...  
Keyword(s):  
Wind Speed ◽  
Structural Design ◽  
Theoretical Basis ◽  
Thermal Process ◽  
Measured Data ◽  
Passive Heating ◽  
High Rise ◽  
And Performance ◽  
Wall Components ◽  
Near Wall

Near-wall microenvironment of a building refers to parameters such as wind speed, temperature, relative humidity, solar radiation near the building’s façade, etc. The distribution of these parameters on the building façade shows a certain variation based on changes in height. As a technology of passive heating and ventilation, the effectiveness of this application on heat collection wall is significantly affected by the near-wall microclimate, which is manifested by the differences, and rules of the thermal process of the components present at different elevations. To explore the feasibility and specificity of this application of heat collection wall in high-rise buildings, this study uses three typical high-rise buildings from Zhengzhou, China, as research buildings. Periodic measurements of the near-wall microclimate during winter and summer were carried out, and the changing rules of vertical and horizontal microclimate were discussed in detail. Later, by combining these measured data with numerical method, thermal process and performance of heat collection wall based on increasing altitude were quantitatively analyzed through numerical calculations, and the optimum scheme for heat collection wall components was summarized to provide a theoretical basis for the structural design of heat-collecting wall in high-rise buildings.

Structural design and performance evaluation of FeCo/epoxy magnetostrictive composites

2021 ◽  
pp. 108840
Author(s):  
Zhenjun Yang ◽  
Zhenjin Wang ◽  
Kenya Nakajima ◽  
Daiki Neyama ◽  
Fumio Narita
Keyword(s):  
Performance Evaluation ◽  
Structural Design ◽  
And Performance ◽  
Magnetostrictive Composites

The Structural Design and Experimental Research of Multi-Level Cushioning Packaging Storage Box

2013 ◽  
Vol 655-657 ◽  
pp. 207-210
Author(s):  
Ming Xi Hu ◽  
Sheng Jun Liu ◽  
Yan Jun Zhang ◽  
Zhen Jie Du ◽  
Feng Tian ◽  
...  
Keyword(s):  
Experimental Research ◽  
Structural Design ◽  
Impact Force ◽  
Steel Wire ◽  
Wire Rope ◽  
Hydraulic Damper ◽  
Emergency Rescue ◽  
Multi Level ◽  
The Moment ◽  
The Impact

Aiming at the damage of package caused by emergency rescue and other severe transportation environment, a multi-level cushioning packaging storage box is proposed in this paper, the precise instrument is fixed in the box, which achieves the box-instrument integration. At the moment when air-dropped box touches the ground, the impact force is absorbed and cushioned through plastic cork base, rubber absorber, box body, steel wire rope spring, hydraulic damper for five times, which could provide effective cushion protection for the precise instrument which fragility value is not less than 15G. Simulation airdrop tests are performed to the storage box with different cushion levels, and the test shows that the result of five-level cushion method proposed in the paper is the best, and overload values are all within 12G, which could provide enough cushion space for precise instrument to avoid touchdown damage.

Method of Designing a Plate-like Ultra High-rise Building

2018 ◽  
Author(s):  
Shoko Okamura ◽  
Kei Muto
Keyword(s):  
Structural Design ◽  
Load Resistance ◽  
Test Results ◽  
High Rise ◽  
High Rise Building ◽  
Axial Forces ◽  
Column Joint ◽  
Strong Winds ◽  
And Performance

<p>This paper describes the method of structural design of a plate-like ultra high-rise building, taking the Shinjuku Toho Building as an example. In particular the major problems in the structural design of this building are described, namely ensuring safety during earthquakes, ensuring habitability during strong winds, and ensuring the load resistance of the columns that are subject to large axial forces. Also, the test results and performance of an "improved non-scallop method" for beam- column joint are described. Finally the method of structural designing "Godzilla’s Head" is described.</p>

Study on Experiment of Terminal Fixture Connection of Steel Wire Rope

2013 ◽  
Vol 351-352 ◽  
pp. 1415-1418
Author(s):  
Xi Guang Cui ◽  
Jie Geng ◽  
Jian Wei Ding
Keyword(s):  
Aluminium Alloy ◽  
Mechanical Performance ◽  
Steel Wire ◽  
Wire Rope ◽  
Wire Mesh ◽  
Polymer Mortar ◽  
Design Requirements ◽  
Steel Wire Mesh

This paper makes some experiments on steel wire rope terminal fixture connection in strengthening with steel wire mesh and polymer mortar, discusses the performance of terminal fixture connection and the analysis of the experiments and dates show that: The connection of the three aluminium-alloy swaged ferrules with the same arranged for steel wire rope or two wire rope grips meet the design requirements of rules and regulations, and three wire rope grips can give full play to the high tensile mechanical performance of steel wire rope.

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