PPT: Network Models | Industrial Engineering - Mechanical Engineering PDF Download

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Introduction 
? Network analysis is one of the important tools for project
management.
? Whether major or minor a project has to be completed in a definite
time & at a definite cost.
? The necessary information of any particular data can be represented
as a project network.
? These techniques are very useful for planning, scheduling and
executing large-time bound projects involving careful co-ordination
of variety of complex and interrelated activities
Page 2


Introduction 
? Network analysis is one of the important tools for project
management.
? Whether major or minor a project has to be completed in a definite
time & at a definite cost.
? The necessary information of any particular data can be represented
as a project network.
? These techniques are very useful for planning, scheduling and
executing large-time bound projects involving careful co-ordination
of variety of complex and interrelated activities
Objectives of network analysis
? Helpful in planning
? Inter-relationship of various activities
? Cost control
? Minimisation of maintenance time
? Reduction of time
? Control on idle resources 
? Avoiding delays, interruptions 
Page 3


Introduction 
? Network analysis is one of the important tools for project
management.
? Whether major or minor a project has to be completed in a definite
time & at a definite cost.
? The necessary information of any particular data can be represented
as a project network.
? These techniques are very useful for planning, scheduling and
executing large-time bound projects involving careful co-ordination
of variety of complex and interrelated activities
Objectives of network analysis
? Helpful in planning
? Inter-relationship of various activities
? Cost control
? Minimisation of maintenance time
? Reduction of time
? Control on idle resources 
? Avoiding delays, interruptions 
Applications of network analysis
? Planning, scheduling, monitoring and control of 
large and complex projects.
? Construction of factories, highways, building, 
bridges, cinemas etc.
? Helpful to army for  its missile development.
? Assembly line scheduling 
? Installation of computers and high tech 
machineries 
? To make marketing strategies
Page 4


Introduction 
? Network analysis is one of the important tools for project
management.
? Whether major or minor a project has to be completed in a definite
time & at a definite cost.
? The necessary information of any particular data can be represented
as a project network.
? These techniques are very useful for planning, scheduling and
executing large-time bound projects involving careful co-ordination
of variety of complex and interrelated activities
Objectives of network analysis
? Helpful in planning
? Inter-relationship of various activities
? Cost control
? Minimisation of maintenance time
? Reduction of time
? Control on idle resources 
? Avoiding delays, interruptions 
Applications of network analysis
? Planning, scheduling, monitoring and control of 
large and complex projects.
? Construction of factories, highways, building, 
bridges, cinemas etc.
? Helpful to army for  its missile development.
? Assembly line scheduling 
? Installation of computers and high tech 
machineries 
? To make marketing strategies
Methodology Involved in Network 
Analysis
Describing the Project
Diagramming the network
Estimating the time of completion
Deterministic
estimates
Probabilistic 
estimates
Monitoring the project progress
Page 5


Introduction 
? Network analysis is one of the important tools for project
management.
? Whether major or minor a project has to be completed in a definite
time & at a definite cost.
? The necessary information of any particular data can be represented
as a project network.
? These techniques are very useful for planning, scheduling and
executing large-time bound projects involving careful co-ordination
of variety of complex and interrelated activities
Objectives of network analysis
? Helpful in planning
? Inter-relationship of various activities
? Cost control
? Minimisation of maintenance time
? Reduction of time
? Control on idle resources 
? Avoiding delays, interruptions 
Applications of network analysis
? Planning, scheduling, monitoring and control of 
large and complex projects.
? Construction of factories, highways, building, 
bridges, cinemas etc.
? Helpful to army for  its missile development.
? Assembly line scheduling 
? Installation of computers and high tech 
machineries 
? To make marketing strategies
Methodology Involved in Network 
Analysis
Describing the Project
Diagramming the network
Estimating the time of completion
Deterministic
estimates
Probabilistic 
estimates
Monitoring the project progress
Key terminology
? Activity : All projects may be viewed as composed of activities. 
It is the smallest unit of work consuming both time& resources 
that project manager should schedule & control.
? An activity is represented by an arrow in network diagram
The head of the arrow shows sequence of 
activities.
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FAQs on PPT: Network Models - Industrial Engineering - Mechanical Engineering

1. What is a network model in mechanical engineering?
Ans. A network model in mechanical engineering refers to a mathematical representation of a mechanical system or process using interconnected components and their relationships. These models help in analyzing and predicting the behavior of the system, such as flow rates, pressure drops, and energy transfers.
2. What are the different types of network models used in mechanical engineering?
Ans. There are several types of network models used in mechanical engineering, including: - Flow network models: These models represent fluid flow systems, such as pipelines or hydraulic circuits. - Thermal network models: These models simulate heat transfer systems, such as heat exchangers or cooling systems. - Electrical network models: These models analyze electrical circuits, including resistors, capacitors, and inductors. - Structural network models: These models predict the behavior of mechanical structures, such as trusses or frames.
3. How are network models useful in mechanical engineering?
Ans. Network models are useful in mechanical engineering for various reasons, including: - Performance prediction: They allow engineers to predict the behavior of a system before actual implementation, helping in optimizing design parameters. - Troubleshooting: Network models help in identifying potential issues or bottlenecks in a system, enabling engineers to find solutions and improve performance. - Cost optimization: By using network models, engineers can explore different design alternatives and select the most cost-effective solution for a given application. - System integration: Network models enable the integration of different components or subsystems, ensuring compatibility and efficient operation. - Risk analysis: These models can be used to assess the reliability and safety of mechanical systems, aiding in risk management and decision-making.
4. What are some commonly used mathematical techniques for network modeling in mechanical engineering?
Ans. Some commonly used mathematical techniques for network modeling in mechanical engineering include: - Graph theory: This technique represents the network components as nodes and their interactions as edges, allowing for analysis using graph algorithms. - System of equations: Mathematical equations are formulated based on the physical laws governing the system, and these equations are solved simultaneously to obtain the desired results. - Finite Element Method (FEM): FEM is used for structural network modeling, dividing the structure into smaller elements and solving the governing equations for each element to determine the overall behavior. - Computational Fluid Dynamics (CFD): CFD is used for flow network modeling, employing numerical methods to solve the governing equations of fluid flow and heat transfer. - Optimization algorithms: These algorithms help in finding the optimal design or operating conditions by minimizing or maximizing certain objective functions, such as cost or performance.
5. What are the limitations of network models in mechanical engineering?
Ans. Network models in mechanical engineering have some limitations, including: - Simplified assumptions: Network models often require simplifying assumptions to make the mathematical analysis feasible, which may not fully capture the complexity of real-world systems. - Accuracy limitations: The accuracy of network models depends on the accuracy of the input data and the assumptions made during the modeling process. Deviations from real-world conditions can affect the accuracy of the predictions. - Model validation: It can be challenging to validate the accuracy of network models due to the complexity of mechanical systems and the lack of complete experimental data. - Computational requirements: Some network models, especially those involving complex geometries or transient phenomena, may require significant computational resources and time to solve. - Sensitivity to input parameters: Some network models are sensitive to changes in input parameters, making them less robust in situations with uncertainties or variations in operating conditions.
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