scholarly journals Modular Home off-site Construction Production Line Improvement

2015 ◽  
pp. 503-512
Author(s):  
Youyi Zhang ◽  
Mana Moghadam ◽  
Mohamed Al-Hussein
Keyword(s):  
Production Line ◽  
Lean Manufacturing ◽  
Production Efficiency ◽  
Assembly Line ◽  
Modular Construction ◽  
Commercial Building ◽  
Market Competitiveness ◽  
Novel Approach ◽  
Building Information ◽  
High Production

Today modular and off-site construction practices are widely used as a novel approach to residential and commercial building construction. Although this approach is known for its high production efficiency and low material waste, manufacturers are facing the challenge of fully differentiating their modular construction procedures from the conventional construction approach. Manufacturers are thus seeking to continuously implement efficient methodologies to improve their production line effectiveness, thereby enhancing their market competitiveness. This paper proposes a methodology enabling the modular manufacturer to overcome this challenge and increase their assembly line productivity by implementing building information modelling (BIM)-supported lean manufacturing concepts, with a particular focus on the importance of the upstream pre-assembly line. This technique was implemented on a case-study, a residential modular factory, and increased the production line productivity by implementing the Lean-assembly concept. This approach is supported by the information provided from an enhanced BIM model generated to deliver accurate resource quantity required at each assembly station.

Process Improvement at Automotive Assembly Line Using Line Balancing and Lean Manufacturing Approach

2020 ◽  
Vol 899 ◽  
pp. 268-274
Author(s):  
Mohamad Hafizdudin bin Tajul Arifin ◽  
Wan Emri Wan Abdul Rahman
Keyword(s):  
Process Improvement ◽  
Automotive Industry ◽  
Manufacturing Process ◽  
Production Line ◽  
Lean Manufacturing ◽  
Assembly Line ◽  
Line Balancing ◽  
Automotive Company ◽  
Automotive Assembly ◽  
Current Production

The aim of this study is to analyze the existing production line in the automotive industry and proposed a layout of improved production line in the manufacturing process and obtain the optimum rate of production time. Thus, line balancing method and Yamazumi Chart was utilized to analyze the current and proposed production line. The collection of the data of the existing production line was conducted at one of the automotive company in Malaysia. From the analysis of current production line, two improved layout were proposed and evaluated. The proposed layout was selected based on a balanced production line and ability to meet customer demand. A balanced production line will ensure smooth process and eliminate wastage during operation

Realizing Lean Concept in Automotive Parts Production: Child Parts in Sub-Assembly Line

2014 ◽  
Vol 660 ◽  
pp. 1015-1019
Author(s):  
Wan Ahmad Najmuddin Wan Saidin ◽  
Nurul Aliaa Mohd Adnan ◽  
Nazrul Idzham Kasim ◽  
Azalan Mohamed Ibrahim ◽  
Ahmad Mujahid Ahmad Zaidi
Keyword(s):  
Production Line ◽  
Lean Manufacturing ◽  
Small Area ◽  
Manufacturing System ◽  
Assembly Line ◽  
Problem Solution ◽  
Related Cost ◽  
Automotive Parts ◽  
Small Parts ◽  
Financial Deficits

This paper addresses the application of a promising and concept known as Lean Manufacturing (LM) concepts that can be used to prevent incorrect parts size at subassembly 1 and 5. In the context of size versus volume, the possibility of small parts to encounter defects is much greater compare to huge size. This undesirable circumstance will lead to the financial deficits in terms of waste. At this stage, this paper will identify and investigate the sources of inputs that cause the failure in the manufacturing system. The finding of the failure will be analysed and extending to the problem solution by suggesting the lean approach at the allocated area. By adapting some of this approach, it will deliver to the performance of production line that includes an assessment of fulfilling the objectives in terms of preventing parts incorrect size, reducing related cost from waste and providing customer with quality products. Taking into account of the objectives, the implementation of this approach in the sub assembly line is then described. Nevertheless, further investigations are necessary to improve the proposed applications which currently function with limitation due to small area of production line.

Balance Analysis and Improvement of Flywheel Production Line

2011 ◽  
Vol 201-203 ◽  
pp. 1131-1134
Author(s):  
Qiu Hong Jia ◽  
Yan Xiao ◽  
Yu Jie Gong ◽  
Kang Qu Zhou
Keyword(s):  
Cycle Time ◽  
Production Line ◽  
Lean Manufacturing ◽  
Production Efficiency ◽  
Working Time ◽  
Production Cycle ◽  
Line Balance ◽  
Before And After ◽  
Balance Analysis ◽  
Balance Problems

It studies the balance problems of cycle time of a flywheel production line in this paper. Based on the working time measured using lean manufacturing (LP) methods, the bottleneck processes of production line are found by simulating with software Witness, which is improved by using production cycle balancing method. Comparing the relevant parameters before and after the production line balance,the improvement results of production line are significant and the production efficiency can be improved.

The optimization design of uniform’s hanging production line

2015 ◽  
Vol 27 (3) ◽  
pp. 370-389 ◽  
Author(s):  
Huirong Cui ◽  
Yinong Yan
Keyword(s):  
Production Process ◽  
Production Line ◽  
Production Efficiency ◽  
Assembly Line ◽  
Group Technology ◽  
Lean Production ◽  
Optimization Methods ◽  
Theoretical Research ◽  
Utilization Rate ◽  
Content Type

Purpose – Garment manufacturing is a traditional industry with global competition. The most critical part is streamline, as it generally involves a great number of operations. The purpose of this paper is to, based on the model of group technology (GT), sum up the methods of assembly line optimization to optimize the streamline, so that the machines of the workstation can perform the assigned tasks with a balanced loading. Design/methodology/approach – In this paper, the methods of obtaining and optimizing data includes literature, research and optimization methods of basing on GT model. The main direction of literature has two aspects: Lean production theory and streamline assignment. Research mainly concludes three aspects: research place, research object and the research content. The method of time determination is averaging the testing values of repeated measurements. Optimization methods of basing on GT model mainly include combination of the same type of technologic processes in sequence, combination of independent branch process, the combination of mainstream and branch processes and offside combination of the same type of processes. Findings – After optimization, in the utilization rate of equipment: hanging system ratio was increased from 22.95 to 62.12 percent, which greatly improved the utilization rate of enterprise equipment. In equipment layout: hanging equipment layout was turned linear type into “U” type, which realized the synchronization of production. GT model will be well applied in the garment production streamline. Compared with other enterprises, A company has large garment hanging system, which reflects the advanced, comprehensive, representative. Therefore, the paper applied optimization methods to trousers, production efficiency has been improved greatly, the utilization rate of equipment is promoted and reworking phenomenon is reduced greatly. Research limitations/implications – Through the optimization of the production process and equipment layout, the A company’s compiling efficiency has been greatly improved, but how can the system become computerized, accurately and intelligence, which has been an important direction of research now. Practical implications – By optimizing, it is fully proved that applying GT to the streamline optimization is feasible. GT is an important branch of Lean production, summing up the optimization methods basing on the GT model to optimize the streamline not only enriches the relevant theory research, but also provides a theoretical basis for the practical production. GT model not only can be used in the shirt production process, as for other production processes, for example, trousers, skirts can also be widely applied, which realizes the theory application in the practical production. Originality/value – The originality of this paper is that through the analysis of the model of GT, the paper sums up the methods of assembly line optimization to optimize the streamline. Although the model of GT is used widely in electronics, automobile and industry, it is relatively weak in the optimization of garment production line, there are not many literatures on practical application of group technology in the clothing. Besides, the paper is applied to practical production, which not only can improve production efficiency, but also make the theoretical research have basis and combine the theory and practical production.

Lean Manufacturing System Design Based on Computer Simulation

2014 ◽  
pp. 89-114 ◽  
Author(s):  
Chramcov Bronislav ◽  
Bucki Robert
Keyword(s):  
Computer Simulation ◽  
System Design ◽  
Production Line ◽  
Lean Manufacturing ◽  
Production Efficiency ◽  
Manufacturing System ◽  
Spatial Location ◽  
Main Task ◽  
Automotive Systems ◽  
Manufacturing System Design

This chapter outlines the possibilities afforded by computer simulation for the design of a lean manufacturing system. The possibilities of making use of simulation are presented in the form of the case simulation study that was performed within the framework of cooperative ventures between the workplace and an industrial partner. A production line in the Continental Automotive Systems Czech Republic company was developed with the use of the Witness simulation environment in order to maximize production efficiency as well as to eliminate waste and production losses already in the system design phase. The main task was to build up a model of the prepared lean manufacture system and, especially, to propose a number of variants for the spatial location of operators in a production line. On the basis of the predefined requirements of the user, several simulation experiments are suggested.

Exploring the Benefits of Early Contractor Involvement (ECI) and the Mechanism for Automated 5D BIM Quantification Process in Offsite Modular Construction

2016 ◽  
Author(s):  
Tochukwu Moses ◽  
David Heesom ◽  
David Oloke ◽  
Martin Crouch
Keyword(s):  
Effective Means ◽  
Cost Effective ◽  
Modular Construction ◽  
Automated Quantification ◽  
Building Information ◽  
Project Risks ◽  
Value Add ◽  
The Uk ◽  
The Impact ◽  
Level 2

The UK Construction Industry through its Government Construction Strategy has recently been mandated to implement Level 2 Building Information Modelling (BIM) on public sector projects. This move, along with other initiatives is key to driving a requirement for 25% cost reduction (establishing the most cost-effective means) on. Other key deliverables within the strategy include reduction in overall project time, early contractor involvement, improved sustainability and enhanced product quality. Collaboration and integrated project delivery is central to the level 2 implementation strategy yet the key protocols or standards relative to cost within BIM processes is not well defined. As offsite construction becomes more prolific within the UK construction sector, this construction approach coupled with BIM, particularly 5D automated quantification process, and early contractor involvement provides significant opportunities for the sector to meet government targets. Early contractor involvement is supported by both the industry and the successive Governments as a credible means to avoid and manage project risks, encourage innovation and value add, making cost and project time predictable, and improving outcomes. The contractor is seen as an expert in construction and could be counter intuitive to exclude such valuable expertise from the pre-construction phase especially with the BIM intent of äóÖbuild it twiceäó», once virtually and once physically. In particular when offsite construction is used, the contractoräó»s construction expertise should be leveraged for the virtual build in BIM-designed projects to ensure a fully streamlined process. Building in a layer of automated costing through 5D BIM will bring about a more robust method of quantification and can help to deliver the 25% reduction in overall cost of a project. Using a literature review and a case study, this paper will look into the benefits of Early Contractor Involvement (ECI) and the impact of 5D BIM on the offsite construction process.

Technical Research for Undocking Scheme on the Horizontal Slipway for Towing the 15,000 Ton Launching Weight Bulk-Carrier

2013 ◽  
Vol 380-384 ◽  
pp. 186-190
Author(s):  
Ya Nan Huang ◽  
Da Lu Liu ◽  
Feng Sheng Sun ◽  
Yu Wang ◽  
Ming Xing Gao
Keyword(s):  
Production Efficiency ◽  
Initial Position ◽  
Bulk Carrier ◽  
Static State ◽  
Processing Scheme ◽  
Making Sense ◽  
Initial Application ◽  
Bottle Neck ◽  
High Production ◽  
The Moment

When comparing with ship construction within newly-built docks or on tilting slipways, ship constructing on the flat earth method can be said to be a new ship-building technique by which ship is built on a platform and launched with the aid of floating-dock or barge. Some obvious advantages of this technique are such as less investment in basic facilities, low production cost, high production efficiency, wide applicability of ship types, ability to overcome the bottle-neck effect of berths and docks. In this paper, a bulk-carrier being taken as an example, the design of launching processing scheme on the horizontal shipway includes calculation of launching weight and determination of hoisting force during the whole towing period. The whole towing process of hull can be divided into three stages, the first is from the static state to the moment of beginning to move, the second is from the initial position of movement to the front of slipway onto which the hull is predicted to be pulled, and the third is from the front of slipway to the designated position on the floating dock. Subsequently, after the hull being sealed and positioned correctly, the floating dock for launching may be towed to deeper water zone and the hull can be buoyed up on the water surface, and the whole launching process can be completed. From the research, the conclusion is made that the launching technique of this paper is available and feasible. Especially, this paper is the initial application of this method on the 15000t launching ship home and has the epoch-making sense.

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