The purpose of this case study is to apply the fundamentals of systems engineering to the operation of an elevator system. The high-technology representation of how this elevator system works will be shown during the process of this final product. The elevator system gives easy understanding when viewed or accessed, its concept is always seen in the product.
An elevator also has single vertically movement elevator system which helps in serving individuals that uses it in its simplest form. There is a button which is fixed at the elevator lobby, any individual that wants to operate on the elevator will have to press this button for easy access.
Table of Contents
1.1 Background of the study
1.2 Problem statement
1.3 Objectives
1.4 Scope and limitation of the study
1.5 Working principle of the system
1.6 Outline of the project
2.1 Introduction
2.2 Timing belt elevators
2.3 Project overview
2.4 Design of elevators
2.5 Elevator installation
2.6 Weights and loads
2.7 Basic system for a traction motor elevator
2.8 Common parts of traction motor elevator
2.8.1 Geared traction motor
2.8.2 Wire in timing belt elevator system
2.8.3 Counterweight
2.9 Components of elevator system
2.10 Elevator door
2.11 Elevator traffic calculation
2.12 Variable frequency low-speed high torque
2.13 Optimization of elevator evacuation considering potential overcrowding
2.14 PID control of maglev guiding system for linear elevators
2.15 Seismic performance of an elevator
2.16 Design and behavioural issues associated with building use
2.16.1 Office building
2.16.2 Residential building
2.16.3 Health care facility
2.17 Summary
3.1 Introduction
3.2 Project flow chart
3.3 Critical overview
3.3.1 Feasibility study
3.3.2 Optimization
3.3.3 Cad modelling
3.3.4 Constructions
3.3.5 Fabrication
3.3.6 Control system design
3.3.7 Control system analysis
3.4 Project cost
3.5 Project work plan
3.5.1 Project stages embedded in 3 subsystem
3.6 Components used in the fabrication of the timing belt elevator
3.6.1 Wire
3.6.2 DC Motor
3.6.3 Timing belt
3.6.4 Circuit board
3.6.5 Counterweight
3.7 Machines and instruments used in the fabrication process
3.8 The fabrication process
3.8.1 Cutting
3.8.2 Drilling
3.8.3 Bending
3.8.4 Assembling
3.19 Materials used in the fabrication
3.9.1 Stainless steel (ferritic)
3.9.2 Aluminium alloy 1060
3.9.3 Glass
3.10 Design criteria for the original elevator system
3.11 List of parameters
3.12 Test and analysis
3.12.1 Design of a programmable logic controller (PLC)
3.12.2 Data collection
3.12.3 Material data
3.12.4 Data analysis and interpretation
3.12 Summary
4.1 Analysis
4.2 ANSYS solution
4.2.1 Manual calculation for factor of safety of the fully assembly
4.3 Total deformation on the elevator car
4.4 Equivalent stress analysis on the elevator car
4.4.1 Von mises definition
4.5 Total deformation on Aluminium alloy rod
4.6 Calculation for the elevator force
4.7 Calculation for the torque of the DC motor
4.8 Calculation for round trip time
4.9 Experimentation to know the amount of load the elevator can sustain
4.10 Calculation for impact force
4.11 Results
4.11.1 Comparing results
4.12 Discussions
5.1 Conclusions
5.2 Limitations
5.3 Recommendations
Project Objectives and Focus Areas
The primary objective of this work is to develop a robust, cost-effective prototype of a timing belt elevator system. The research investigates the integration of mechanical and electrical components to ensure safe and efficient vertical transportation, focusing on minimizing fabrication costs and enhancing safety through modern engineering simulation techniques.
- Development of a functional timing belt elevator prototype.
- Fabrication of an efficient elevator door and cabin structure.
- Engineering analysis using finite element methods (ANSYS) for structural safety.
- Optimizing system performance through motor control and load calculation.
Excerpt from the Book
1.1 Background of the study
During the 3rd Century BC, there have been an earliest kind of elevators which has been existing then. Many sources do operate this kind of elevators during those days like human, animals and automated water wheel power. The introduction of the counter weight elevator later became introduced in the year 1743. The counter weighted elevator introduced then was also operated with man power which built for King Luis XV. Another system of usage of this elevator later became introduced during the middle of the 19th century by the elevators builders and the inventors, this usage system introduced is the steam operating system whereby steam is used to operate this elevators. The main importance of this type of elevators is that it was used to transport materials to warehouses, mines and factories. A safety device was later installed in the elevator which helps in safeguarding the elevator from falling off. (Gravis E. Ottis, 1852).
The purpose of this case study is to apply the fundamentals of systems engineering to the operation of an elevator system. The high-technology representation of how this elevator system works will be shown during the process of this final product. The elevator system gives easy understanding when viewed or accessed, its concept is always seen in the product. An elevator also has single vertically movement elevator system which helps in serving individuals that uses it in its simplest form. There is a button which is fixed at the elevator lobby, any individual that wants to operate on the elevator will have to press this button for easy access (Otis, 2008).
This lobby is simply explained as the area in the building which is adjacent to the elevator at a particular level. The operator will have to press any of the button in the elevator where the either button represents the upward and downward direction as the user desires to move on. When this button is been pressed, a particular responds is been given immediately through the path of predetermined travel route or the elevator cycle.
Summary of Chapters
Chapter 1: Provides an introduction to the history of elevators, states the core research problem regarding safety and maintenance, and outlines the objectives of the project.
Chapter 2: Reviews existing literature regarding elevator design, component integration, traffic calculations, and seismic performance safety considerations.
Chapter 3: Details the research methodology, including the design of the control framework, fabrication processes, material selection, and project planning.
Chapter 4: Presents the results of the structural and fatigue analysis conducted using ANSYS, along with manual calculations to verify the safety factors of the elevator prototype.
Chapter 5: Summarizes the project achievements, draws conclusions regarding system stability, and provides recommendations for future maintenance and safety enhancements.
Keywords
Elevator system, Timing belt, Fabrication, Systems engineering, Structural analysis, ANSYS, DC motor, Safety factor, Vertical transportation, Control framework, Mechanical design, Prototype, Load calculation, Elevator door, Maintenance.
Frequently Asked Questions
What is the core purpose of this research project?
The study aims to design and fabricate a prototype of a timing belt-driven elevator system that is cost-effective, reliable, and capable of responding to user button requests at various floors.
What are the primary fields of study involved?
The research encompasses systems engineering, mechanical fabrication, structural analysis, and control system design.
What is the main goal or research question addressed?
The primary goal is to determine if a timing belt elevator can provide a safe and cost-efficient alternative to conventional traction elevators while maintaining structural integrity and operational efficiency.
Which scientific methods are employed in this work?
The project utilizes finite element analysis (FEA) via ANSYS software to simulate stress and deformation, alongside experimental testing using weights to measure system response and stability.
What content is covered in the main body?
The main body covers the theoretical review, the engineering design process, material selection criteria, fabrication workflows, and the analytical validation of the elevator’s performance.
Which keywords characterize this elevator project?
Key terms include timing belt elevators, structural safety, ANSYS simulation, motor control systems, and mechanical fabrication.
Why was glass chosen as the material for the elevator car?
Glass was selected as a lightweight, durable, and clear material, which analysis showed offered better performance and lower deformation compared to aluminum under landing force conditions.
How is the safety of the elevator system verified?
Safety is verified by calculating the factor of safety through both manual analytical formulas and ANSYS simulation, ensuring the structure can sustain expected operational loads.
What is the significance of the timing belt in this system?
The timing belt acts as a cost-efficient and durable medium to lift and lower the elevator car, replacing more complex and expensive gear-driven or hydraulic systems.
How does the control system handle user requests?
The system uses a microprocessor-based controller that receives inputs from elevator buttons, processes the travel path, and manages the motor direction and door operation for efficient user transport.
- Citar trabajo
- Orakwelu Nzube Cliff (Autor), 2015, Design and Analysis of a Timing Belt Elevator System. Final year report project, Múnich, GRIN Verlag, https://www.grin.com/document/976454
