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Introduction
Published in Ansel C. Ugural, Mechanical Engineering Design, 2022
Here, we consider load analysis dealing with the assemblies or structures made of several connected members. A frame is a structure that always contains at least one multiforce member, that is, a member acted on by three or more forces, which generally are not directed along the member. A truss is a special case of a frame, in which all forces are directed along the axis of a member. Machines are similar to frames in that at least one of the elements may be multiforce members. However, as noted earlier, a machine is designed to transmit and modify forces (or energy) and always contains moving parts.
Introduction
Published in Ansel C. Ugural, Youngjin Chung, Errol A. Ugural, Mechanical Engineering Design, 2020
Ansel C. Ugural, Youngjin Chung, Errol A. Ugural
Here, we consider load analysis dealing with the assemblies or structures made of several connected members. A frame is a structure that always contains at least one multiforce member, that is, a member acted on by three or more forces, which generally are not directed along the member. A truss is a special case of a frame, in which all forces are directed along the axis of a member. Machines are similar to frames in that at least one of the elements may be multiforce members. However, as noted earlier, a machine is designed to transmit and modify forces (or energy) and always contains moving parts.
Preentry Planning, Hazard Assessment, and Hazard Management
Published in Neil McManus, Safety and Health in Confined Spaces, 2018
Mechanical hazard results from unexpected or unpredictable operation of mechanical equipment located in the space. Mechanical equipment has moving parts such as blades or paddles, levers, screw conveyors, propellers or augurs, belts, chains, and so on. Unexpected motion of these parts can strike occupants and cause injury. Mechanical hazard includes discharge of stored energy through motion of parts.
A comprehensive review on fault detection and analysis in the pumping system
Published in International Journal of Ambient Energy, 2022
Nabanita Dutta, Palanisamy Kaliannan, Shanmugam Paramasivam
The main work of lubrication is to decrease the friction between two moving parts. It thus decreases the wear and helps increase the life span of the machine. Non-contaminated oil cannot wear out and has a useful life of about thirty years at 3000°C. This life span is halved for every 1000°C rise in the temperature of the oil. Overloading of bearing generates huge heat, which decreases the ability of lubrication oil to lubricate the bearings and, therefore, the system can be damaged (Bengio et al. 2007).