This document discusses production planning and control (PPC) in manufacturing. It defines key concepts like production, planning, production planning, control, and production control. It outlines the objectives of PPC which include optimizing capacity utilization, inventory control, reducing production time, and ensuring quality. The main steps of PPC discussed are production planning, routing, scheduling, loading, dispatching, follow up, inspection, and corrective actions. Routing determines the sequence and resources for production. Scheduling sets start and finish times. Loading assigns work. Dispatching releases orders. Follow up monitors progress. Inspection checks quality. The overall goal of PPC is efficient and profitable production.
Production planning, routing, scheduling, Activating, MonitoringDarshan Shah
First Plan Your Work and then Work on Your Plan.
1. Planning is deciding in advance what to do, how to do it, when to do it and who is to do it.
Planning bridges the gap from where we are, to where we want to go. It makes it possible for things to occur which would not otherwise happen.
2. Routing may be defined as the selection of path which each part of the product will follow, which being transformed from raw material to finished products.
Routing determines the most advantageous path to be followed from department to department and machine to machine till raw material gets its final shape.
3. Scheduling determines the program for the operations. Scheduling may be defined as ‘the fixation of time and date for each operation’ as well as it determines the sequence of operations to be followed.
4. Activating is concerned with the starting the processes. Activating is ‘release of orders and instruction for the starting of production for any item in acceptance with the route sheet and schedule charts’.
5. Monitoring is related to report daily the progress of work in each shop in a prescribed proforma and to investigate the causes of deviations from the planned performance.
Production planning, routing, scheduling, Activating, MonitoringDarshan Shah
First Plan Your Work and then Work on Your Plan.
1. Planning is deciding in advance what to do, how to do it, when to do it and who is to do it.
Planning bridges the gap from where we are, to where we want to go. It makes it possible for things to occur which would not otherwise happen.
2. Routing may be defined as the selection of path which each part of the product will follow, which being transformed from raw material to finished products.
Routing determines the most advantageous path to be followed from department to department and machine to machine till raw material gets its final shape.
3. Scheduling determines the program for the operations. Scheduling may be defined as ‘the fixation of time and date for each operation’ as well as it determines the sequence of operations to be followed.
4. Activating is concerned with the starting the processes. Activating is ‘release of orders and instruction for the starting of production for any item in acceptance with the route sheet and schedule charts’.
5. Monitoring is related to report daily the progress of work in each shop in a prescribed proforma and to investigate the causes of deviations from the planned performance.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
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Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
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This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
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Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
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A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
2. Production
Production is the process by which
goods or services are created.
It is a means of converting raw materials
into finished product by performing a set
of manufacturing operations in a
predetermined sequences that
transforms material from a given to
desired form.
3. Planning
Planning means preparing the scheme
in advance before the actual work is
started.
It is predetermination of future course
of action to meet the desired
objectives.
Before starting the production it is
necessary to decide in advance what
to produce, how to produce, how
much to produce and where to sell.
4. Production Planning
Production planning is the
predetermination of future
achievement in type of products,
volume of production, quality time,
manufacturing cost and the resources
required.
It analyses all the problems that may
arise and decides in advance how to
address them.
5. Production Planning
Production planning is a technique of
forecasting steps involved in the long run
production process, taking them at the
right time, in the right degree and trying
to complete the operations efficiently.
It considers three fundamental questions
◦ What type of work has to be undertaken?
◦ How this work will be done?
◦ When the work has to completed
6. Control
Control means supervision of all the
relevant operations with the help of
control mechanism that feeds back the
progress of the work.
Controlling is made by comparing the
actual performance with the present
standards and deviations, if any, are
analysed to take corrective measures.
7. Production control
It is process to track and control
production flow, amount of resources, and
deviations (if any) from the planned
actions.
It includes arrangements for mid course
correction in case of deviations from the
original plan so that the production can
proceed as per the original plan.
In nutshell, production control ensures all
which is required to pursue the
organizational goal in accordance with
the rules established and instructions
issued.
8. Production Planning and Control (PPC)
The PPC may be defined as the direction and
coordination of the firms material and physical
facilities towards the accomplishment of
predetermined production goals in the most
efficient and economical manner.
9. Production Planning and Control (PPC)
Gordon and Carson observed that production
planning and control involve generally in the
organization and planning of manufacturing
process.
It consists of the planning of routing, scheduling,
dispatching, inspection, and coordination, control
of materials, methods machines, tools and
operating times.
The ultimate objective is the organization of the
supply and movement of materials and labour,
machines utilization and related activities, in order
to bring about the desired manufacturing results in
terms of quality, quantity, time and place.
10. PPC Contd..
Planning initiates action while control is
an adjusting process, providing
corrective measures for planned
development.
Production control regulates and
stimulates the manufacturing process
from the beginning to the end.
11. Benefits of Production Planning & Control
Optimum utilization of capacity
◦ PPC helps the entrepreneur in scheduling the
tasks and production runs, and thereby
ensures that the productive capacity does not
remain idle.
◦ PPC eliminates undue queuing up of tasks by
proper allocation of tasks and resources to
the production facilities.
12. Benefits of PPC Contd.
Inventory control
◦ Proper PPC will help the entrepreneur to resort to just- in- time
systems and thereby reduce the overall inventory.
◦ It also ensures that the right supplies are available at the right
time.
Economy in production time
◦ PPC will help the entrepreneur to reduce the cycle time and
increase the turnover via proper scheduling.
Ensure quality
◦ A good PPC ensures adherence to the quality standards so that
quality of output is ensured.
To sum up we may say that PPC is of immense value to
the entrepreneur in capacity utilization and inventory
control. More importantly it improves his response time
and quality. As such effective PPC contributes to time,
quality and cost parameters of entrepreneurial success.
13. Objectives of Production Planning & Control
The ultimate objective of production planning
and control is to contribute to the profits of the
enterprise.
This is accomplished by keeping the
customers satisfied through meeting of
delivery schedules.
Specific objectives of production planning
and control are
to establish routes and schedules for work that will
ensure the optimum utilization of materials,
workers, and machines and
to provide the means for ensuring the operation of
the plant in accordance with these plans.
14. Steps in Production Planning & Control
Production planning
Production control planning
Routing
Scheduling
Loading
Dispatching
Following up
Inspection of corrective sequence of
operations and to ensure that this
sequence is strictly followed.
15. Routing
Routing is the first step in production planning and control.
Routing can be defined as the process of deciding the path
(route) of work and the sequence of operations.
Routing fixes in advance:
◦ The quantity and quality of the product.
◦ The men, machines, materials, etc. to be used.
◦ The type, number and sequence of manufacturing
operations, and
◦ The place of production.
In short, routing determines ‘What’, ‘How much’, ‘With which’,
‘How’ and ‘Where’ to produce.
The main objective of routing is to determine (fix) the best and
cheapest sequence of operations and to ensure that this
sequence is followed in the factory.
16. Different activities in Routing
Routing procedure involves following
activities:
An analysis of the article to determine
what to make and what to buy
To determine the quality and type of
material
Determining the manufacturing
operations and their sequence
A determination of lot sizes Determination
of scrap factors
Organization of production control forms
17. Loading
The next step is the execution of the
schedule plan as per the route chalked out
which includes the assignment of the work
to the operators at their machines or work
places.
Gantt Charts are most commonly used in
small industries in order to determine the
existing load and also to foresee how fast a
job can be done.
◦ It is a type of bar chart that illustrates project
schedule.
◦ The charts explain the start and finish dates of
terminal elements and summary elements of a
project.
18. Scheduling
Scheduling is the last of the planning
functions.
◦ It determines when an operation is to be
performed, or when work is to be completed;
the difference lies in the detail of the
scheduling procedure.
In a centralized control situation - where all
process planning, loading, and scheduling
for the plant are done in a central office-
the details of the schedule may specify the
starting and finishing time for an operation.
◦ On the other hand, the central schedule may
simply give a completion time for the work in a
given department.
19. Production control
Production control is the process of planning
production in advance of operations,
establishing the exact route of each individual
item part
◦ or assembly, setting, starting and finishing
for each important item
◦ or the finishing production and releasing the
necessary orders as well as initiating the
necessary follow-up to have the smooth
function of the enterprise
20. Dispatching
Dispatching is release of orders and
instructions for starting of the production of an
item as per the route sheet and schedule
chart.
◦ Movement of materials to different workstations
◦ Movement of tools and fixtures necessary for each
operation
◦ Beginning of work on each operation
◦ Recording of time and cost involved in each
operation
◦ Movement of work from one operation to another in
accordance with the route sheet
◦ Inspecting or supervision of work
Dispatching is an important step as it translates
21. Follow Up
Every production programme involves
determination of the progress of work,
removing bottlenecks in the flow of work
and ensuring that the productive
operations are taking place in
accordance with the plans.
Follow up delays or deviations from the
production plans.
It helps to reveal defects in routing and
scheduling, misunderstanding of orders
and instructions, under loading or
overloading of work etc.
22. Inspection
This is mainly to ensure the quality of goods. It can be
required as effective agency of production control.
Corrective measures
Corrective action may involve any of those activities of
adjusting the route, rescheduling of work, changing the
workloads, repairs and maintenance of machinery or
equipment, control over inventories of the cause of
deviation is the poor performance of the employees.
Certain personnel decisions like training, transfer,
demotion etc. may have to be taken.
Re-planning
Re-planning is not a corrective action. Re-planning
revises routes, loads, and schedules; a new plan is
developed. In manufacturing this is often required.
Changes in market conditions, manufacturing methods,