Case study: Investigation into the subjective strain at two differently designed automobile assembly workplaces (original) (raw)

Ergonomic Evaluation of a Manual Load in a Car Assembling Company

2018

The work quality and the importance of maintaining a healthy relationship between men and their work environment encourages companies to refer to the term “ergonomics”, which seeks to minimize risks of work accidents and achieve ideal working conditions. The research was done in a car assembly company. This company was chosen to analyze a process in which a fuel tank is taken from a rack and moved to the mounting band.

Posture Evaluation of the Automotive Maintenance Workers: A Case Study

2020

Automotive maintenance workers or commonly known as mechanics are exposed to numerous work stressors while performing their works. Maintenance activities required worker to be in different type of working posture, which mostly awkward posture and in high risk to developed musculoskeletal disorder. Statistics data disclosed that musculoskeletal disorder among maintenance workers is quite high compared to the other types of job sectors. Therefore, this study aims to examine the working posture amongst the mechanics based on their job activities. By using an ergonomic assessment sheet for posture known as Rapid Entire Body Assessment (REBA), ten common vehicle maintenance activities with ten mechanic in the maintenance jobs have been evaluated based on their feedback. The findings showed that, nine out of ten activities are in the high risk and necessary action need to be taken soon. Awkward posture such as excessive bending and twisting for several body parts with heavy parts as well ...

Manual Assembly Workstation Redesign Based on a New Quantitative Method for Postural Comfort Evaluation

Applied Mechanics and Materials, 2013

Main purpose of this work is to show how easy and economics an ergonomic/comfort based approach, in re-design a manual assembly workplace, can be; authors, using a new comfort/ergonomic evaluation criterion, analyzed a workstation, then identified the critical issues under ergonomic/comfort point of view and finally gave several guidelines to re-design the workplace, implementing minor modification, and improve work-safety, work-quality and productivity.

Ergonomic Design Measures on Work Process and Workplace Layout in the Selected Structural and Fabrication Shops

Asia Pacific Journal of Multidisciplinary Research, 2015

The study aimed to analyze the process and workplace layout in the selected structural and fabrication shops located in Batangas, Philippines thus provide improvements using the results of Ergonomic Design Measures. These shops generally focused on preparation, cutting, welding, grinding and assembly using multi-functioning machines and many aspects of human work. Using different Ergonomic Assessment Checklist, Rapid Entire Body Assessment (REBA), Rapid Upper Limb Assessment (RULA) and Ovako Working Posture Assessment System (OWAS), and with direct observations, it was found out that existing design of the work processes and workplace layout does not match the ergonomic requirements. The study exposed the presence of Musculoskeletal Disorder (MSD) risks due to awkward posture, forceful exertion and fatigue; position of workers is dangerous to themselves due to inappropriate measurement of facilities which is in need of change. The researcher recommended ergonomically based actions to address the health, comfort, and well-being of employees such as changing the workstation surface height, integration of safeguarding; application of Group Technology to reduce the production lead time and material handling and offered smooth workflow in production line. Furthermore, the researcher developed a proposed workstation and workplace design as part of the ergonomic-based actions. The effectiveness of the proposed design alternatives were measured with the use of Trade-off Analysis technique, such as, Standard Weighted Sum Method, MAXIMIN decision and Analytic Hierarchy Process.

Ergonomics study on an assembly line used in the automotive industry

MATEC Web of Conferences, 2019

Today, for the enterprises, the competition is more and more intense and more competitor try to satisfy their customers. In the field of automotive industry, the demands for the product increase and the company need to satisfy the demand. As the demands increases, the company should produce more product than usual. In the same time the comfort and health of the workers should be consider. Some factors such as workstation design should take into consideration in order to increase the productivity and at the same time protect workers from accidents and health problem. Therefore, the workstations need to be redesign by applying the ergonomics principles. This paper presents the combined application of Artificial Neural Networks and the Rapid Upper Limb Assessment (RULA) Analysis in the process of redesign ergonomic workstations. Artificial Neural Networks excel in gathering difficult non-linear relationships between the inputs and outputs of a system. We used, in this work, a feed forw...

Ergonomic Conditions Assessment of a Bus Factory

ICONTECH INTERNATIONAL JOURNAL

Eventhough the production technology and capacity have been improved, manpower is indispensable. Coach production industry is one of the heavy industries. Production processes are mostly manpower in addition to automation and mechanization in these factories. Ergonomics is the one of the most important subject to increase the production efficiency and job security in heavy industry factories which use manpower heavily. Ergonomics is the field which aims to reduce the accidents and job related illnesses, anatomic problems in human body, psychological and physiological fatigue and minimize the workforce loss. Ergonomic statement evaluation is possible with providing ergonomic criteria such as anthrometric, environmental condition, and work place. In this study, some experimental studies are done in order to evaluate the ergonomical conditions in chassis frame production, cataphoresis, paint shop, assembly, and quality inspection processes. The experimental studies include static a...

The Risk of Physical Fatigue At Different Level of Posture and Repetition During Manual Handling Task in Aerospace Manufacturing Industry

International journal of innovative technology and exploring engineering, 2019

This paper aims toinvestigatethe risk of physical fatigue at different levels of posture and repetition during manual handling task. Ten subjects with nohistoryof musculoskeletal disorders performed manual handling tasks at three levels of posture and two levels of repetition. The task completion time is recorded during the experimental task and the subjects rated their perceived discomfort level after the task completion. The results indicated that the lower posture of hand at higher repetition resulted in higher perceived discomfort level that leads to higher risk of physical fatigue. The higher repetition requires higher rest time for recovery and required lengthy completion time. The findings of this study served as a reference to the manufacturing industry in manual handling task design and planning to mitigate issues related to work-related physical fatigue at different levels of posture and repetition that could lead to the risk of work-related musculoskeletal disorders (WMSDs). I. INTRODUCTION Ergonomics is defined as the science that addresses human performance factors and related to the job, the workplace, tools, and the environment (McColley, 2016). Ergonomics is important to reduce stress, eliminate injuries and disorders associated with the overuse of muscles, bad posture, and repetitive tasks. This is accomplished by designing tasks, workspaces, controls, displays, tools, lighting, and equipment to fit the employee´s physical capabilities and limitations (Frieden, 2013).Ergonomics is the practice and research of the interaction between the human and the physical environment with the goal of optimizing human well-being and overall system performance (Dennerlein, 2016).

Ergonomics and physical demand analysis in a construction manufacturing facility

2015

Poor workstation design in a manufacturing facility negatively impacts the health and safety of workers, which hampers productivity. A systematic tool, Physical Demand Analysis (PDA), is utilized in a case-study project to quantify and evaluate physical labour and body posture for various production line tasks in a window and door manufacturing company. This paper presents the implementation PDA focusing on the design of the PDA form template, plant observation, and ergonomic risk identification. The data collection methodology and the implementation of time studies for plant observation are described. Four main ergonomic risks are identified: static whole body posture, manual material handling, sensory problem, and awkward body postures. Detailed observation findings, risk assessment method, analysis results and suggested corresponding corrective measures with regard to these four risks are described in this paper. 1 PLANT OBSERVATION AND ERGONOMIC ANALYSIS A well-designed workstat...

Ergonomics design on the work stress outcomes

2007

Theoretical explanation and empirical research on work stress conducted by the scholars in the field shows that it is an unignorable workplace problem. Most of the researchers agree that work stress is caused by the workstation design or workplace environment. An optimal workstation design is where the workplace environment supports the needs of the workers and where a worker operates