6 shaft shafts subjected to fluctuating loads
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Shafts are often subjected to fluctuating loads in practice rather than constant loads. To design shafts like line shafts and counter shafts that experience fluctuating torque and bending moments, combined shock and fatigue factors must be accounted for in calculating the twisting moment and bending moment. These equivalent moments are calculated using combined shock and fatigue factors for bending (Km) and torsion (Kt), with recommended values for Km and Kt provided in a table.
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7 shaft shafts subjected to axial load in addition to combined torsion and...
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Shafts are designed to withstand axial loads in addition to combined torsion and bending loads. Designing shafts to handle multiple load types is challenging but important for many mechanical applications that require rotating shafts like motors and transmissions. Engineers must carefully consider all expected load cases and stresses when specifying shaft dimensions, materials, and support bearings.5 shaft shafts subjected to combined twisting moment and bending moment
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1. The document discusses the design of shafts that are subjected to both twisting moments and bending moments.
2. It describes two theories for analyzing combined stresses: maximum shear stress theory for ductile materials like steel, and maximum normal stress theory for brittle materials like cast iron.
3. It provides an example of determining the diameter of a shaft made of 45 C 8 steel that is subjected to a bending moment of 3000 N-m and torque of 10,000 N-m, with a safety factor of 6.Shaft subjected to bending moment only
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3) Examples are presented to demonstrate how to use the formulas and determine the necessary shaft diameter based on allowable stresses.Unit 2 design of shaft
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- Resisting torque is uniform, so work done = Area x Resisting torque
- Assuming resisting torque is 10 Nm, work done per cycle = 60,000 Nm
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The document provides guidance on troubleshooting hydraulic systems. It discusses developing a systematic process including following safety procedures, obtaining documentation, isolating issues, and making predictive checks. Common problems involve pumps, valves, actuators, and overheating. Pump issues include noise, pressure/flow problems. Valves and actuators may cause low/erratic pressure or slow movement. Overheating can indicate contamination, relief settings, or internal leaks. Electrical issues can similarly impact hydraulics. Accumulators and proportional valves require specialized documentation. The key tools are the senses - sight, sound, touch, and smell.3 c. industrial pneumatic circuit logic
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This document discusses various pneumatic logic circuits that can be created using spool valves. It describes logic AND, OR, NOT, memory/latch circuits and how they function. Diagrams are provided to illustrate 3/2 valves that can be used for normally open, normally closed, selection, and diversion applications. Circuits for OR, AND, NOT logic functions and single pulse creation are also depicted.Recently uploaded (20)
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6 shaft shafts subjected to fluctuating loads
- 1. Design of Shaft Shafts Subjected to Fluctuating Loads
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