Smoothness index in assembly line balancing pdf

Smoothness index this is the index to indicate the relative smoothness of a given assembly line balance. The present study aimed at balancing the garment assembly line using the ranked positional weight technique to increase the line efficiency as well as minimize the number of workstations without viol. Workload smoothing in simple assembly line balancing. Abstract assembly line balancing is to know how tasks are to be assigned to workstations, so. International journal of occupational safety and ergonomics. Assemblyline balancing assemblyline balancing objective is to minimize the imbalance between machines or personnel while meeting required output starts with the precedence relationships determine cycle time calculate theoretical minimum number of workstations balance the line by assigning specific tasks to workstations. Heuristic procedure for the assembly line balancing. Pdf line balancing techniques for productivity improvement. Assembly lines are useful for mass production of standard as well as customized products. Landasan teori line balancing menurut gaspersz 2004, line balancing merupakan penyeimbangan penugasan elemenelemen tugas dari suatu assembly line ke work stations untuk meminimumkan banyaknya work station dan meminimumkan total harga idle time pada semua stasiun untuk tingkat output tertentu. This paper considers heuristics which can be helpful in reducing a workstations number in assembly line balancing problem.

Line balancing is the procedure in which tasks along the assembly line are assigned to work station so each line has approximately same amount of work. This is first of the 2 videos on assembly line balancing under the subject industrial engineering. Smoothness index stmax maximum station time in most cases cycle this is the index to indicate the relative time, smoothness of a given assembly line. Pdf assembly line balancing is the problem of assigning. In the last sixty years a large variety of heuristics and exact solution procedures have been proposed to balance different structures of assembly lines. A comparative evaluation of heuristics and a computational assessment of objectives. Assembly line scheduling dynamic programming algorithm in hindi. Findings minimizing the smoothness index is not necessarily equivalent to minimizing the nws. Project index, line and balance efficiency will be illustrated for a published testcase examined by the a line balancing package. Line balancing is an important issue, in this regard an optimal or near optimal balance can provide a. What is line balancing assigning each task to a work within an assembly line in order to meet the required production rate and to achieve a minimum amount of idle time.

The smaller balance delay means the less idle time idle an assembly line balancing. Using the taguchi method to optimize the differential evolution algorithm parameters for minimizing the workload smoothness index in simple assembly line balancing. This paper considers a simple assembly line balancing problem with fixed number of workstations and prespecified cycle time. Our objective is to minimize the sum of the squared deviations of the workstation loads around the cycle time, hence maintain workload smoothing. Improvement of garment assembly line efficiency using line.

Assembly line balancing problem with reduced number of. Heuristic procedure for the assembly line balancing problem with postural load smoothness. In this video various terminologies like balance delay, line efficiency, smoothness index etc. Line efficiency is the ratio of work stations time to the cycle time multiplied by the number of stations and smoothness index is an index that becomes the relative refining index of an assembly line balance. Index terms assembly line, workstations, line balancing.