Line Balancing, Operation Management

Assignment Help:
#What do you understand by “line balancing”? What happens if balance doesn’t exist?uestion..

Related Discussions:- Line Balancing

Discuss factors that can rise complexity of the information, Identify and d...

Identify and discuss factors that can increase the size and complexity of the information system structure (beyond those discussed in the text). •Make at least three recommendation

Calculate the mean absolute deviation, Since May of 2005, the purchase mana...

Since May of 2005, the purchase manager at a department store has been using a 4-period moving average to forecast sales in upcoming months. Sales data for the months of January th

Describe the importance of reliability in the selection, Define and discuss...

Define and discuss the importance of reliability in the selection process.

Explain operations applications are least prominent, Operations application...

Operations applications are least prominent for distributors, wholesales, manufacturers or retailers?

Define what do you think will happen to hrm in the future, What do you thin...

What do you think will happen to HRM in the future? What do you think of this prediction for HRM? Is it likely to come true? If so, why? If not, why not? Cited/References

Explain waste elimination plan, Do a lean waste analysis on the goal and cr...

Do a lean waste analysis on the goal and create a waste elimination plan. (List the seven forms of waste, list items in the goal by waste form, determine what could be done to redu

Find estimated costs for each of the three product, Madden Industries manuf...

Madden Industries manufactures three models of a product in a single plant with two departments cutting and assembly. The company has estimated costs for each of the three product

supply chain, What is the primary objective of supply chain managemen

What is the primary objective of supply chain management

Compute the linear charge density, An infinite line charge produces a field...

An infinite line charge produces a field of 9 × 104 N/C at a distance of 2 cm. Calculate the linear charge density

Search a financial analysis report of coca-cola, Where can I find a financi...

Where can I find a financial analysis report of coca-cola for the past 5 years. I stress full financial analysis for the past 5years.

Daina

2/12/2013 7:08:07 AM

Line Balancing
- Line: an assembly line composed of various work stations, at which particular operations are performed.

- To work efficiently, with no work pile-ups between stations, the line must be balanced, for example work must get through each workstation in roughly similar amount of time.
Goals:
1. To meet production goals,
2. Maximize output.

General Approaches to Line Balancing Technique
1. Estimating number of operators for a specific number of stations,
2. Work element sharing: grouping “activities” each work elements into “stations” or jobs performed by a single person (occasionally multiple people work in concert at a single station or machine)

Diana

2/12/2013 7:09:42 AM

Write your Aim – It only applies to assembly lines. It aims at minimizing the idle time along the line by dividing work equally among members. Tasks are grouped in such a way that they have equal time requirement.

When is line Balancing is Done

· When the line is initially set-up

· When the changes are made in process / desired output rate

Difficulty associated with LB – Not feasible to combine certain activities

Necessity of line balancing – In absence of line balancing, it might create morale problem for workers at slower station who work continuously

(Draw Precedence Diagram)

Cycle Time = Longest time at the any of the work element OR (Operating Time / Desired Output Rate)

CT = 1 min

(In Question, it may be given as 480 units per 8-hour day, Hence CT = 8*60 min per day / 480 units per day = 1 minute per cycle)

Theoretical Minimum number of workstations, Nmin = Sum of time at all WS / CT = (0.1+1.0+0.7+0.5+0.2) / 1.0 = 2.5 = 3 Workstations

Rules in Assigning task

1. Choose new WS if

a. All preceding tasks are completed

b. Task Time is less than or equal to Time Remaining

2. Always first assign the task with greatest task time to a workstation, in case there is a choice between work elements. In case task time is same, choose the element having greatest number of followers.

3. For every new WS, always start with cycle time

WS


Time Remaining


Eligible


Assign Task


Revised Time remaining


WS Idle Time

1


1.0


A,C


C(0.7)


0.3 (1.0-0.7)




0.3


A


A(0.1)


0.2


0.2

2


1.0


B


B(1.0)


0


0

3


1.0


D


D(0.5)


0.5




0.5


E


E(0.2)


0.3


0.3

Total Idle time = 0.2 + 0.3 = 0.5 minutes

Balance Delay in % (% of idle time on assembly line) = Total idle time * 100/ (Actual No of WS * Cycle Time)

=0.5*100/(3*1) = 16.7%

Line efficiency = 100% - Balance delay% = 83.3%

Other considerations in line-balancing

1. Technical considerations –

a. Skill requirement of different tasks - If the skill requirements of tasks are quite different, it may not be feasible to place the tasks in the same workstation

b. Incompatible tasks - If the tasks themselves are incompatible (example – Use of fire and flammable liquids), it may not be feasible even to place them in stations that are near to each other

2. Variable tasks by human –

a. Reasons for variation are Fatigue, boredom and failure to concentrate on the task at hand.

b. Absenteeism can also affect the balance

Other approaches to achieve smooth flow of production

1. Make parallel workstations – They increase the workflow and provide flexibility

2. Cross-train workers / Dynamic line balancing – It helps workers perform more than 1 task. In case they are idle, they can assist other workers who are temporarily over-burdened

3. Mixed model line - Design a line to handle more than 1 product on the same line. The different products are similar in many ways and hence, the process applied on them is also samemessage here..

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd