Rosmaini Ahmad, Assoc. Prof. Dr.This page provides access to scholarly publications by UniMAP Faculty members and researchers.http://dspace.unimap.edu.my:80/xmlui/handle/123456789/392252024-03-28T14:13:46Z2024-03-28T14:13:46ZAnalysis of buffered assembly line productivityUsubamatov, Ryspek, Prof. Dr.Abd Alsalam, AlsalamehRosmaini, Ahmad, Dr.Abdul Rahman Rizahttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/329082014-03-20T06:40:57Z2014-01-01T00:00:00ZAnalysis of buffered assembly line productivity
Usubamatov, Ryspek, Prof. Dr.; Abd Alsalam, Alsalameh; Rosmaini, Ahmad, Dr.; Abdul Rahman Riza
Purpose – The paper aims to study car assembly line, to show its productivity rate, and to derive a mathematical model for the productivity rate of the assembly line segmented into sections with embedded buffers.
Design/methodology/approach – The paper performs productivity calculations based on data obtained from the assembly processes of a car and shows the maximum productivity of the assembly line. The equations of the assembly line productivity, the optimal number of assembly stations, and the necessary number of the assembly line's sections with buffers are derived via the criterion of maximum productivity.
Findings – The paper provides the productivity diagram of the assembly line that illustrates various measures of productivity, one that depends on the number of assembly stations, the number of sections in the line, and the capacity of the buffers. The diagram is based on the proposed mathematical equations for the productivity of the assembly line as a function of the assembly technology, number of stations, number of sections, and the capacity of the buffer.
Research limitations/implications – Solutions towards increasing the productivity of the assembly line are given based on the results of the study and analysis of the assembly processes in real industrial environments.
Practical implications – The paper includes the equation for the productivity of the assembly line, which is segmented into sections with limited capacity of the buffers, thereby enabling the calculation of its maximum productivity and the optimal number of assembly stations.
Originality/value – The paper presents an analysis of productivity and a mathematical model for calculating the productivity of the assembly line, which is segmented into sections with embedded buffers of limited capacity. The initial results of the research have been obtained from a real industrial environment.
Link to publisher's homepage at http://www.emeraldinsight.com
2014-01-01T00:00:00ZMaintenance decision-making process for a multi-component production unit using output-based maintenance technique: A case study for non-repairable two serial components' unitRosmaini, Ahmad, Dr.Shahrul, Kamaruddin, Dr.http://dspace.unimap.edu.my:80/xmlui/handle/123456789/324842014-03-10T08:19:44Z2013-05-01T00:00:00ZMaintenance decision-making process for a multi-component production unit using output-based maintenance technique: A case study for non-repairable two serial components' unit
Rosmaini, Ahmad, Dr.; Shahrul, Kamaruddin, Dr.
This paper presents the maintenance decision-making process for the case of a multi-component unit based on output-based maintenance (OBM) technique. OBM is an innovative maintenance technique that applies condition based maintenance (CBM) approach. The principle of OBM is to use machine output measure as the main monitoring parameter for maintenance decision making. A multi-component decision algorithm for the case of non-repairable two serial components unit based on the OBM technique is proposed to illustrate the process of maintenance decision making. The proposed decision algorithm is designed and developed based on 'rule-based' decision tree approach, which makes the entire process of decision making easy to understand and interpret. Two maintenance decisions are considered to be decided upon: the right time to perform maintenance and the right component that requires maintenance. An example using a real industry case is presented to demonstrate the applicability of the proposed decision algorithm in making maintenance decisions. Validation result shows that the proposed model provides practical and reliable decisions. This paper ended with a conclusion and some recommendations for future studies.
Link to publisher's homepage at http://www.ramsconsultants.com/
2013-05-01T00:00:00Z