Asymmetric lifting capabilities for different container dimensions.
نویسندگان
چکیده
This study recruited 14 young male participants to examine human 4-h maximum acceptable weight of lifting (MAWL) and maximum weight of lifting (MWL) for different modes of asymmetric lifting and containers. The results showed that asymmetric lifting with trunk rotation decreased MAWL and MWL by 9.1 and 17.3%, respectively, and asymmetric lifting with body turn decreased MAWL and MWL by 6.1%, when compared with the symmetric lifting. The decreasing effects of container width and MAWL and MWL were greater than those of container length. Participants selected MAWL of ~33-37% of their MWL capability.
منابع مشابه
Maximum symmetric and asymmetric isoinertial lifting capabilities from floor to knuckle height.
Ten young male participants were recruited to test their maximum symmetric and asymmetric isoinertial lifting capabilities from floor to the knuckle height in different container dimensions varied in both width and length. The results showed that the order from the highest to lowest lifting capability for the lifting modes was symmetric lifting, asymmetric lifting with leg rotation and asymmetr...
متن کاملPsychophysically determined asymmetrical lifting capabilities for different frequencies and containers.
Ten young male participants were tested their psychophysically determined 4-h maximum acceptable weight of lifting (MAWL) of 90-degree asymmetric lifting for three lifting frequencies (1 lift/min, 2 lifts/min, 4 lifts/min) and three lifting containers (50 x 35 x 15 cm, 70 x 35 x 15 cm, 50 x 50 x 15 cm). The results showed that the MAWL decreased with increasing frequency and container width or ...
متن کاملOptimization of a Container Ship Dimensions Using Multi-Objective Genetic Algorithm Method
Today, marine transportation has a significant role in global trade. The characteristics of the containerized shipping have made the number of container ships grow every day and made significant improvements in the construction and operation of these ships. In this research, the main dimensions of a container ship are optimized according to different objectives. This optimization aims to reduc...
متن کاملDesign and Evaluation of Multi-storey Lifting Frame Bridge Based Automated Container Terminal Handling System
This paper aims to propose an innovated design of automated container terminal (ACT) handling system, which can help the port to enhance the handling performance of the entire terminal. Different from conventional ACTs that use trucks or automated guided vehicles (AGVs) to transport containers in the terminal, the new handling system takes advantages of multi-storey lifting frame bridge (MLFB),...
متن کاملAutomated Container-Handling System for Container Production Nurseries
Production of nursery crops in the US is accomplished in containerand field-growing conditions, with propagation and seedling-rearing carried out in greenhouses. Container-grown crops represent 60% of the US market and represent a highly labor-intensive and thus costly segment of ornamental crop production. The USDA, NASA and the ANLA have collaborated to develop an automated in-field container...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- International journal of occupational safety and ergonomics : JOSE
دوره 17 2 شماره
صفحات -
تاریخ انتشار 2011