scholarly journals Cold-formed Steel Framing of a Dairy Products Warehouse in Brest, Belarus

2021 ◽  
Vol 350 ◽  
pp. 00014
Author(s):  
Vasili Stsepaniuk ◽  
Andrei Shuryn ◽  
Dmitry Zhdanov ◽  
Pavel Tsikhanchuk
Keyword(s):  
Structural Design ◽  
Dairy Products ◽  
Structural Features ◽  
Basic Principles ◽  
Framed Structures ◽  
Analysis And Design ◽  
Advantages And Disadvantages ◽  
Steel Framing ◽  
Cold Formed Steel

The main advantages and disadvantages of cold-formed steel framed structures are discussed, and the basic principles for their analysis and design are considered. Some specific structural features of the thinwalled cold-formed steel framing of a dairy warehouse designed by Proektnauka LLC (Brest, RB), are described, and several recommendations so as to improve its structural design are given.

Structural Analysis and Design of Pre Heating Automotive Control System Based on AVR

2013 ◽  
Vol 456 ◽  
pp. 595-598
Author(s):  
Jing Bo Zhu ◽  
Jing Yan Wang
Keyword(s):  
Control System ◽  
Heating System ◽  
Structural Features ◽  
Automotive Control ◽  
Analysis And Design ◽  
Advantages And Disadvantages ◽  
Heated Air ◽  
Air Intake ◽  
Working Principle

ATmega8 of AVR chip was used in the automobile pre-heating control system. Automotive pre-heated working principle was analyzed. The system of the pre-heater was designed and the hardware composition of the heating system, the structural features and the role of each module was introduced. It was expounded the process control including the heated air intake phase, to the oil phase, ignition phase and work phase. At last, the advantages and disadvantages of the pre-heater were introduced.

scholarly journals EC3-Compatible Methods for Analysis and Design of Steel Framed Structures

Modelling ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 567-590
Author(s):  
Sofia Antonodimitraki ◽  
Pavlos Thanopoulos ◽  
Ioannis Vayas
Keyword(s):  
Cross Section ◽  
Steel Frames ◽  
Steel Structures ◽  
Ultimate Capacity ◽  
Framed Structures ◽  
Analysis And Design ◽  
Order Analysis ◽  
Advantages And Disadvantages ◽  
Moment Resisting ◽  
Safe Side

The behaviour of steel structures is affected by two nonlinearities—the geometric and material nonlinearity—and by the unavoidable presence of imperfections. To evaluate the ultimate capacity of a structure, these effects should be taken into consideration during the design process, either explicitly in the analysis or implicitly through the verification checks. In this context, Eurocode 3 provides several design approaches of different complexity and accuracy. The advantages and disadvantages of these approaches are discussed. Five different methods in conformity with the Eurocode provisions are applied for the design of four moment resisting steel frames of varying slenderness. The influence of nonlinearities and imperfections in respect to the slenderness of the structure is illustrated. The examined methods are compared in terms of the predicted ultimate capacity and their efficiency is assessed against the most accurate between them, i.e., an advanced geometrically and materially nonlinear analysis. It is shown that considerable differences arise between the methods. Nevertheless, except for the commonly used 2nd order analysis followed by cross-section verifications, the remaining methods are mostly on the safe side.

scholarly journals Structure Analysis and Design of Automobile plastic clutch pump body based on friction welding

2020 ◽  
Vol 316 ◽  
pp. 02001
Author(s):  
Jing Sheng ◽  
Aamir Sohail ◽  
Mengguang Wang ◽  
Zhimin Wang
Keyword(s):  
High Temperature ◽  
Structural Design ◽  
Friction Welding ◽  
Room Temperature ◽  
Welding Process ◽  
Structure Type ◽  
Mechanical Analysis ◽  
Analysis And Design ◽  
Technical Requirements ◽  
Design Requirements

In order to realize the need for lightweight automobiles through replacing steel with plastics, the research and development of the plastic clutch pump body based on the friction welding was carried out. For the clutch pump body connected by friction welding process between the upper pump body and the lower pump body, the technical requirements of pressure 14 MPa and durability (high temperature 7.0 × 104 times, room temperature 7.0 × 105) are required. The structure type of the upper and lower pump bodies of the end face welding type was proposed. Through the static analysis of the pump body and weld and the mechanical analysis under the working condition, the structure of the clutch pump body (upper and lower pump body) was determined. According to the established welding process, the pressure of the clutch pump body is more than 15 MPa, and the number of high-temperature durable circulation and the number of room temperature durable circulation also reached 7.2×104 and 7.3×105 times respectively. The results show that the structural design of a clutch pump body meets the design requirements.

scholarly journals The Effects of the Solvents on the Macrocyclic Structures: From Rigid Pillararene to Flexible Crown Ether

2021 ◽  
Author(s):  
Shuangshuang Wang ◽  
Yanzhen Yin ◽  
Jian Gao ◽  
Xingtang Liang ◽  
Haixin Shi
Keyword(s):  
Hydrogen Bonds ◽  
Structural Design ◽  
Structural Features ◽  
Intermolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen Bonds ◽  
Effect Of Solvents ◽  
Dynamics Simulations ◽  
Intramolecular Hydrogen ◽  
Macrocyclic Molecules ◽  
Polarity Of Solvents

The differences in the macrocyclic structures lead to different flexibilities, and yet the effect of solvents on the conformations is not clear so far. In this work, the conformations of four representational macrocyclic molecules (pillar[5]arene, p-tert-butyl calix[6]arene, benzylic amide macrocycle and dibenzo-18-crown-6) in three solvents with distinct polarity have been studied by all-atom molecular dynamics simulations. The structural features of the macrocycles in the solvents indicate that the conformations are related to the polarity of the solvents and the formation of hydrogen bonds. For the pillar[5]arene, the benzylic amide macrocycle and the dibenzo-18-crown-6, that cannot form intramolecular hydrogen bonds, the polarity of solvents is the major contributing factor in the conformations. The formation of intramolecular hydrogen bonds, in contrast, determinates the conformations of the calix[6]arene. Furthermore, the slight fluctuations of the structures will result in tremendous change of the intramolecular hydrogen bonds of the macrocycles and the intermolecular hydrogen bonds between the macrocycles and the solvents. The current theoretical studies that serve as a basis for the macrocyclic chemistry are valuable for the efficient structural design of the macrocyclic molecules.

scholarly journals 3D Modelling, Design and Safety Management in High Rise Building u sing Bim

2021 ◽  
Vol 11 (1) ◽  
pp. 41-50
Author(s):  
Mohammed Waheed ◽  
◽  
Mahmad Naheed ◽  
Parvez Patel ◽  
Syed Mubashir Hussain ◽  
...  
Keyword(s):  
Design Process ◽  
3D Modeling ◽  
Structural Design ◽  
Safety Management ◽  
Information Modeling ◽  
Analysis And Design ◽  
High Rise ◽  
High Rise Building ◽  
Traditional Design ◽  
Building Information

In this works 3D modeling, design and safety management of high rise building using building information modeling (BIM) technology is carried out.. Initially a AutoCAD plan with all its salient features is developed following byelaws of high rise building. Then the 3D modeling and rendering of high rise building is done in the Revit architecture of the 2D plan which is imported from the AutoCAD. The analysis and design of high rise building is carried out using ETabs software. Apart from the structural design Mechanical, Electrical and Plumbing (MEP) services design is carried out using BIM technology . The layout of fire safety system is specified efficiently with use of BIM in co-ordination with MEP services. The application of BIM based design process resulted in considerable time reduction in compression with traditional design process and the holistic design of the high rise building is carried out with the compatibility of different softwares.

scholarly journals Analysis and design of wastewater treatment

2018 ◽  
Vol 2 (3) ◽  
pp. 121-135
Author(s):  
Jordan Andres P. Pinoargote ◽  
Jennifer Tatiana R. Alcivar ◽  
Carlos G. Villacreses Viteri
Keyword(s):  
Wastewater Treatment ◽  
Structural Design ◽  
Treatment System ◽  
Residual Water ◽  
Analysis And Design ◽  
Agricultural Engineering ◽  
Physical Chemical ◽  
Technical University ◽  
The Cost ◽  
The City

The work proposes the reuse of wastewater from the Faculty of Agronomic Engineering of the Technical University of Manabí, located in the Lodana parish in the city of Portoviejo, to irrigate the diversity of plantations that exist in the institution as a banana, cocoa and lemon. In the work, the results of the physical-chemical and bacteriological analysis carried out on the residual water generated in the institution are offered, being able to verify that it does not meet the parameters required to be used in the irrigation of crops. The technical scheme of the proposed treatment system is shown, specifying the structure of the zeolite filter. The calculations made for the technical and structural design of each of the devices that make up the proposed treatment system are provided. The analysis of the performance of the system that is illustrated with a series of data reflected in tables is exposed and where an efficiency between 84% and 88% can be verified. A review of compliance with environmental regulations is carried out and an economic analysis is provided on the cost of the investment for the introduction of the system in the Faculty of Agricultural Engineering of the Technical University of Manabí.

Finite element analysis and design optimization of a non-circular sandwich composite deep submarine pressure hull

2020 ◽  
Vol 62 (10) ◽  
pp. 1025-1032
Author(s):  
Mahmoud Helal ◽  
Elsayed Fathallah
Keyword(s):  
Finite Element Analysis ◽  
Structural Design ◽  
Parametric Design ◽  
Failure Criteria ◽  
Sensitivity Analyses ◽  
Sandwich Composite ◽  
Element Analysis ◽  
Analysis And Design ◽  
Diving Depth ◽  
Ansys Parametric Design Language

Abstract Diving depth is the criteria for designing the submarine pressure hull meant to achieve a definite collapse depth. In this study, a methodology to optimize a sandwich composite deep pressure hull is presented. Buoyancy factor (BF) minimization is considered as an objective function. The optimization process is achieved by ANSYS parametric design language (APDL). Composites failure criteria and structural stability are considered as constraints. Additionally, sensitivity analyses were conducted to analyze the effects of geometric parameters on optimal structural design. The results showed that, the utilization of a sandwich composite pressure hull for a deep submarine at extreme depths is not safe. Additionally, the results propose that the submarine designed should be able to operate at a maximum diving depth of up to 7500 m.

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