A new method for the design of tall buildings: The mit design method

1995 ◽  
Vol 4 (2) ◽  
pp. 169-184 ◽  
Author(s):  
C. C. Pouangare ◽  
J. J. Connor
Keyword(s):  
Design Method ◽  
Tall Buildings ◽  
New Method

Design and Research of Double-Drum Winch with Anti-Pressure Wheel

2012 ◽  
Vol 479-481 ◽  
pp. 1709-1713
Author(s):  
Kai An Yu ◽  
Tao Yang ◽  
Chang Zhi Gong
Keyword(s):  
Finite Element ◽  
Bearing Capacity ◽  
Finite Element Methods ◽  
Design Method ◽  
New Method

In view of the problems of large stress and severe bearing heating in double-drum winch at present, this paper adopted a new method to enhance bearing capacity for double-drum winch by adding anti-pressure wheels between two drums. Finite element methods were used to analyze the strength of 4000kN-traction double-drum winches with anti-pressure wheels and without anti-pressure wheels respectively. The results of the analysis revealed that the stress of the cylinder bearing decreased from 264MPa to 167MPa. The new method by adding anti-pressure wheels had remarkably improved the endurance of the bearing. Therefore, the design method can be widely used in large-traction double-drum winch.

A New Design Method for the Fault Diagnosis on the Rotating Rectifier of Aeronautic Synchronous Generator

2012 ◽  
Vol 548 ◽  
pp. 544-547
Author(s):  
Yong Zhi Liu ◽  
Cong Liu
Keyword(s):  
Fault Diagnosis ◽  
Feature Vector ◽  
Design Method ◽  
Synchronous Generator ◽  
New Method ◽  
Test Analysis ◽  
Exciting Current ◽  
On Line

A new method of fault diagnosis on the rotating rectifier of aeronautic synchronous is raised in the work. Firstly, the condition, truth and approach of EMD are introduced, and the method and steps of building up the feature vector are also included, Secondly the theories of LS-SVM and the arithmetic in the classification are also included. Finally taking the faults of one and two diodes turning off for example, after extracting the feature vector of exciting current based on EMD and establishing the classifying method based on Gauss RBF LS-SVM, the test, analysis and comparison can be on between LS-SVM and NN the conclusion can be got that the classified method referred in the work owns higher exactness, takes less time and has more application on the on-line fault diagnosis NN.

scholarly journals IPG as a new method to improve the agility of the initial analysis of the inventive design

2021 ◽  
Vol 49 (3) ◽  
pp. 549-562
Author(s):  
Masih Hanifi ◽  
Hicham Chibane ◽  
Rémy Houssin ◽  
Denis Cavallucci
Keyword(s):  
Inverse Problem ◽  
Design Method ◽  
New Method ◽  
Significant Progress ◽  
Initial Analysis ◽  
The Subject ◽  
Time Required

TRIZ method has long proven its value without appearing to the industrial world as inevitable. Design researchers have therefore addressed the limitations of the TRIZ method and have overcome them with more systematic approaches. Among these, the Inventive Design Method (IDM) has been the subject of several articles and put into practice in the industry. It is considered an improvement over TRIZ but still suffers from some drawbacks in terms of the time-consuming nature of its implementation. We focused on the IDM process by trying to both identify its areas of inefficiencies while attempting to preserve the quality of its deliverables. Our approach consists of applying the precepts of Lean to IDM. The result is the Inverse Problem Graph (IPG) method, inspired by IDM, but offering significant progress in reducing the time required to mobilize experts while preserving its inventive outcomes. This article outlines our approach for the construction of this new method.

Mechanical Behavior Research of a High-Rise Hybrid Structure Based on Shaking Table Test

2012 ◽  
Vol 487 ◽  
pp. 613-616
Author(s):  
Ying Zhou ◽  
Jian Yu
Keyword(s):  
Earthquake Engineering ◽  
Shaking Table Test ◽  
Design Method ◽  
Tall Buildings ◽  
Hybrid Structure ◽  
Steel Frame ◽  
Shaking Table ◽  
Scale Model ◽  
Concrete Core ◽  
Prototype Structure

In order to establish the systematic design method of performance-based earthquake engineering for steel-concrete hybrid structure tall buildings, a 1/15 scale model shaking table test is conducted in State Key Laboratory for Disaster Reduction in Civil Engineering of Tongji University. The dynamic property, acceleration and displacement response of the model structure under different earthquake levels are investigated from the test. The failure mode of structure is analyzed and the seismic response of the prototype structure is interpreted according to the similitude relation. The conclusions drawn from this investigation show that the prototype structure can basically satisfy the requirements of no damage under frequent earthquakes and no collapse under rare earthquakes; steel frame- concrete core structural system has good seismic performance under rare earthquake; and the damage of the connection between the steel frame beam and the core wall is the main failure pattern of the structure.

Slenderness Influence on the Behavior of Composite Columns

2016 ◽  
Vol 691 ◽  
pp. 40-50
Author(s):  
Štefan Gramblička ◽  
Andrea Hrusovska
Keyword(s):  
Cross Sections ◽  
Design Method ◽  
Tall Buildings ◽  
Concrete Columns ◽  
Order Theory ◽  
Second Order ◽  
Order Effects ◽  
Composite Columns ◽  
Steel Members ◽  
Composite Steel

Composite steel and concrete columns have been used in the tall buildings due theirs high-resistance and the possibility to reduce cross sections when we compered composite columns with reinforced concrete columns. There are a lot of types of composite columns. We are concerned with columns, which are completely or partially concrete-encased steel members. In practice, a lot of composite columns are relatively slender and in design the second - order effects will usually need to be included. A partially concrete encased steel cross-section was selected for laboratory tests of composite columns. According to the results of the experiments (total of 18 columns were tested in two series), we analyzed the effects of the second - order theory. The experimental results were compared with theoretical results obtained from the model developed in the non-linear software. The evaluation of the results is also shown in comparison with the general design method according to Eurocode 4, Design of composite steel and concrete structures - Part 1.1 General rules and rules for buildings.

A new method for torque balancing of planar linkages using non-circular gears

2003 ◽  
Vol 217 (5) ◽  
pp. 495-503 ◽  
Author(s):  
Y-A Yao ◽  
H-S Yan
Keyword(s):  
Optimization Model ◽  
Design Method ◽  
Gear Ratio ◽  
New Method ◽  
Transmission Ratio ◽  
Gear Pair ◽  
Novel Concept ◽  
Planar Linkages ◽  
Driving Torque ◽  
Linkage Synthesis

This paper proposes a novel concept for reducing driving torque fluctuations of planar linkages by the application of non-circular gears. The circular gears normally used in gear linkage mechanisms are replaced by a pair of non-circular gears. The design method includes two individual stages: linkage synthesis and gear ratio synthesis. An optimization model is developed for determining the appropriate transmission ratio function of the non-circular gear pair to meet user-specified requirements and constraints. Two examples are given to demonstrate this method and to verify its feasibility.

Mode Superposition Response Spectrum Method Combined with Continuum Method for High-Rise Energy Dissipation Structure

2011 ◽  
Vol 94-96 ◽  
pp. 799-802
Author(s):  
Li Yan Gao ◽  
Yu Kun Feng ◽  
Wen Feng Liu
Keyword(s):  
Architectural Design ◽  
Design Method ◽  
Response Spectrum ◽  
New Method ◽  
Response Spectrum Method ◽  
Mode Superposition ◽  
Spectrum Method ◽  
Damping Rate ◽  
Adjustment Factors ◽  
Spectrum Curve

Response spectrum curve is the base of seismic design of structures, and mode-superposition response spectrum method is a practical design method of structures. Damping adjustment factors and shape parameters have been adjusted in the new Chinese code (2010) for damping rate is not equal to 0.05. Then, a new mode superposition response spectrum method combined with continuum method is introduced in this paper. Finally, the earthquake shear of a shear-wall structure’s bottom is calculated, and the results of the new method are compared with that of traditional method implemented in PM-SATWE software which is widely used in architectural design institute. The contrast results show that the new method is available and has a good accuracy.

Optimum design method for simplified model of outrigger and ladder systems in tall buildings using genetic algorithm

Structures ◽  
2020 ◽  
Vol 28 ◽  
pp. 2467-2487
Author(s):  
Wael Alhaddad ◽  
Yahia Halabi ◽  
Hani Meree ◽  
Zhixiang Yu
Keyword(s):  
Genetic Algorithm ◽  
Optimum Design ◽  
Design Method ◽  
Tall Buildings ◽  
Simplified Model

A New Method to Quickly Optimize the Thickness of Multi-Holes Plate

2014 ◽  
Vol 915-916 ◽  
pp. 205-208
Author(s):  
Sheng Bin Wu ◽  
Xiao Bao Liu
Keyword(s):  
Mathematical Model ◽  
Finite Element Method ◽  
Finite Element ◽  
Design Method ◽  
New Method ◽  
The Finite Element Method ◽  
Design Error ◽  
Theory Of Plates ◽  
Plates And Shells ◽  
Element Method

The theory of plates and shells is not adapted to design thickness for the multi-holes plates in engineering. A new method to quickly optimize the thickness based on the finite element method theory was put forward. The method combined the theory of plate with the finite element method to establish a mathematical model and analyzed the influences of load, constraint and complexity on design error. The practices demonstrated that the proposed design method is effective and feasible.

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