Factors that can improve the reliability of the traction motor for the locomotives
- Authors: Bopape, Thulare Kgaugelo
- Date: 2018
- Subjects: Locomotives , Railroads , Reliability (Engineering)
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/393621 , uj:32574
- Description: Abstract : In recent years, many customers are willing to pay product or service that will last them for a long time without disturbing their day to day run of business. Reliability management for the physical resources has to turn out to be the highly important aspect of running the business, especially in the logistics industry. It is vital for the customer to have a full understanding of the product lifecycle for the purpose of knowing the lifespan of a purchased product. Reliability development is directly linked to the product lifecycle cost (PLCC). Unreliability motor unit causes PLCC to increase and it is affecting the manufacturer’s revenue profits and their reputation. This study presents an approach of identifying factors that increase the reliability of traction motors and reduces its life cycle costs by quantifying the reliability of motor units in the rail environment, collecting data of failure statistics. This stats will be used to determine defect severity and how they affect the overall reliability of the system when components failed. The determination of the quantitative pilot survey was to examine the concept reliability management such as mean time between failures (MTBF), failure rate, projected PLCC for the duration of the warranty period for traction motor of Railway locomotives. Original Equipment Manufacturers are odd to investigate the potential means of dropping PLCC and improve the reliability of the product. Components such as brushes, commutator, brush rings, bearing and winding were identified as the main failures that occur frequently according to the stats collected at company X. Those components were scrutinized using reliability techniques such as Root Causes Analysis (RCA), Failure Mode and Effective Analysis (FMEA) and MTBF to determine the causes and effects of parts failing during their operational period. The risk was measured in the process. The Reliability was defined as the probability that the product or system performs its intended function in a specified time and environmental conditions at without changes its physical characteristics. Reliability can be expressed as the possibility of attainment. It is measured in terms of Mean Time between Failures (MTBF). The definition is broken down into three points which are as follows: Probability–Consumers expect the probability to be 100 percent. “Useable” Intended Function –Goods needs to be suitable to carry out its main activity without failing. Stated Conditions –Goods should be able to withstand environmental conditions without error. The findings reveal that finite training for operators that assemble the motor unit takes places. The periodic inspection must be conducted to prevent failure from occurring. Customers should be included in the reliability management program to educate them on how to use the product efficiently without causing unnecessary faults. Find ways of identifying possible failure can save a lot of time and effort for both manufacturers and endusers. , M.Phil. (Engineering Management)
- Full Text:
- Authors: Bopape, Thulare Kgaugelo
- Date: 2018
- Subjects: Locomotives , Railroads , Reliability (Engineering)
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/393621 , uj:32574
- Description: Abstract : In recent years, many customers are willing to pay product or service that will last them for a long time without disturbing their day to day run of business. Reliability management for the physical resources has to turn out to be the highly important aspect of running the business, especially in the logistics industry. It is vital for the customer to have a full understanding of the product lifecycle for the purpose of knowing the lifespan of a purchased product. Reliability development is directly linked to the product lifecycle cost (PLCC). Unreliability motor unit causes PLCC to increase and it is affecting the manufacturer’s revenue profits and their reputation. This study presents an approach of identifying factors that increase the reliability of traction motors and reduces its life cycle costs by quantifying the reliability of motor units in the rail environment, collecting data of failure statistics. This stats will be used to determine defect severity and how they affect the overall reliability of the system when components failed. The determination of the quantitative pilot survey was to examine the concept reliability management such as mean time between failures (MTBF), failure rate, projected PLCC for the duration of the warranty period for traction motor of Railway locomotives. Original Equipment Manufacturers are odd to investigate the potential means of dropping PLCC and improve the reliability of the product. Components such as brushes, commutator, brush rings, bearing and winding were identified as the main failures that occur frequently according to the stats collected at company X. Those components were scrutinized using reliability techniques such as Root Causes Analysis (RCA), Failure Mode and Effective Analysis (FMEA) and MTBF to determine the causes and effects of parts failing during their operational period. The risk was measured in the process. The Reliability was defined as the probability that the product or system performs its intended function in a specified time and environmental conditions at without changes its physical characteristics. Reliability can be expressed as the possibility of attainment. It is measured in terms of Mean Time between Failures (MTBF). The definition is broken down into three points which are as follows: Probability–Consumers expect the probability to be 100 percent. “Useable” Intended Function –Goods needs to be suitable to carry out its main activity without failing. Stated Conditions –Goods should be able to withstand environmental conditions without error. The findings reveal that finite training for operators that assemble the motor unit takes places. The periodic inspection must be conducted to prevent failure from occurring. Customers should be included in the reliability management program to educate them on how to use the product efficiently without causing unnecessary faults. Find ways of identifying possible failure can save a lot of time and effort for both manufacturers and endusers. , M.Phil. (Engineering Management)
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The roles of functional and project managers in matrix organizations in the private sector
- Authors: Kishore, Nishaan
- Date: 2018
- Subjects: Project managers , Matrix organization
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/393599 , uj:32571
- Description: Abstract: Capital intensive organizations around the world have been facing significant pressure due to budget constraints. The success of capital expenditure projects is significantly influenced by good project management including project management structure. This paper is on how the roles of functional and project managers can positively influence project performance in a matrix structure. A case study was conducted in a Technology organization which have restructured their software department from a top-down reporting structure to a Matrix Structure (dual management system). The Functional managers who were inherited from the previous structure questioned their role in the matrix structure and needed to understand their new role and if they were being effective. The managers and team operating in the matrix structure had to change their mindsets to allow the co-existents of two managers working together to implement projects which have uncertain complex requirements (agile mentality). Using Project Management standards (ISO21500 (ISO, 2012) and GAPPS (GAPPS, 2003)), the measure of the effectiveness of the roles of both Functional and Project Managers was achieved. This article identified gaps in the current roles of the managers and in the matrix structure itself. The focus of the research was to identify the factors that were negatively influenced by the project structure such as quality of the projects, level of risk engaged and return on investment from the projects delivered. The retention of top employees is the responsibility of the functional managers and it was found that the software team had haemorrhaged top employees at a rate of 9.56 percent through resignations in the last year. The projects delivered by the team did not meet the company’s objectives of 100 percent deliverables on projects and achieved only 94.17 percent. The change management process was not handled well in the matrix structure and resulted in the organization sacrificing time and quality. The better use of Project Management standards and practices will allow the organization to improve their project deliverables in respect to quality, time, cost management and value (customer satisfaction). The managers must seek to achieve a balanced matrix by adequately communicating with each other and have ground rules to reduce conflict in the project structure. , M.Ing. (Engineering Management)
- Full Text:
- Authors: Kishore, Nishaan
- Date: 2018
- Subjects: Project managers , Matrix organization
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/393599 , uj:32571
- Description: Abstract: Capital intensive organizations around the world have been facing significant pressure due to budget constraints. The success of capital expenditure projects is significantly influenced by good project management including project management structure. This paper is on how the roles of functional and project managers can positively influence project performance in a matrix structure. A case study was conducted in a Technology organization which have restructured their software department from a top-down reporting structure to a Matrix Structure (dual management system). The Functional managers who were inherited from the previous structure questioned their role in the matrix structure and needed to understand their new role and if they were being effective. The managers and team operating in the matrix structure had to change their mindsets to allow the co-existents of two managers working together to implement projects which have uncertain complex requirements (agile mentality). Using Project Management standards (ISO21500 (ISO, 2012) and GAPPS (GAPPS, 2003)), the measure of the effectiveness of the roles of both Functional and Project Managers was achieved. This article identified gaps in the current roles of the managers and in the matrix structure itself. The focus of the research was to identify the factors that were negatively influenced by the project structure such as quality of the projects, level of risk engaged and return on investment from the projects delivered. The retention of top employees is the responsibility of the functional managers and it was found that the software team had haemorrhaged top employees at a rate of 9.56 percent through resignations in the last year. The projects delivered by the team did not meet the company’s objectives of 100 percent deliverables on projects and achieved only 94.17 percent. The change management process was not handled well in the matrix structure and resulted in the organization sacrificing time and quality. The better use of Project Management standards and practices will allow the organization to improve their project deliverables in respect to quality, time, cost management and value (customer satisfaction). The managers must seek to achieve a balanced matrix by adequately communicating with each other and have ground rules to reduce conflict in the project structure. , M.Ing. (Engineering Management)
- Full Text:
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