Proposal for an indexical method of evaluating risk of hand tool operators' exposure to mechanical vibrations.
نویسندگان
چکیده
The article presents proposals for an indexical evaluation of exposure of hand tool operators to vibrations. The presented indices have been developed on the basis of the results of laboratory tests. The examinations studied the effect of pressure force and grip force exerted by an operator on a hand tool as well as the amplitudes and frequencies of an exciting signal on vibrations transmitted in the hand-tool handle system.
منابع مشابه
ارزیابی مواجهه کاربران تیلر با ارتعاش دست و بازو
Introduction: The power tiller is a multipurpose hand tractor designed primarily for rotary tilling and other farm operations. Vibration, transmitted from the handles of the tiller to the operators’ body, causes many injuries such as, pain, musculoskeletal disorders and white finger syndrome. The aim of this study was to evaluate the hand-arm vibration exposure in the operators of tiller model...
متن کاملEvaluating Critical Safety and Health Risks by Job Safety Analysis and Analytic Hierarchy Process in Industrial Printing
Background: Critical risks are one of the most important problems in industries, which have high costs for the industry. This study aimed to assess critical safety and health risks through job safety analysis and analytic hierarchy process in industrial printing. Materials and Methods: The present study was conducted as a descriptive and analytical in one of the printing industries in Iran, in...
متن کاملComparative study of ultrasonic vibrations assisted EDM and magnetic field assisted EDM processes
In this investigation, the material removal rate, tool wear rate and surface integrity obtained by EDM, ultrasonic vibrations assisted EDM and magnetic field assisted EDM were studied and compared with together to show the quality of the effects of applying each of ultrasonic vibrations to tool and magnetic field around gap distance of EDM process on material removal rate, tool wear rate, and s...
متن کاملVibration characteristics of tractor seat cushion materials
Operators of agricultural machinery are exposed to an extensive range of indirect vibrations through the seats, which gradually causes chronic damages. One of the ways to reduce the vibrations imposed on the operators is to use appropriate materials in tractor seat cushion. The present study was carried out in order to select appropriate foam or sponge and investigate different factors in reduc...
متن کاملDevelopment and Usability Evaluation of an Online Tutorial for “How to Write a Proposal” for Medical Sciences Students
Background and Objective: Considering the importance of learning how to write a proposal for students, this study was performed to develop an online tutorial for “How to write a Proposal” for students and to evaluate its usability. Methods: This study is a developmental research and tool design. “Gamified Online Tutorial based on Self-Determination Theory (GOT-STD) Framework" became the basis f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- International journal of occupational safety and ergonomics : JOSE
دوره 8 2 شماره
صفحات -
تاریخ انتشار 2002