The parallel-link mechanism ABCD is used to transport a component I between manufacturing processes at stations E, F, and G by picking it up at a station when θ = 0 and depositing it at the next station when θ = 180°. Knowing that member BC remains horizontal throughout its motion and that links AB and CD rotate at a constant rate in a vertical plane in such a way that v B = 2.2 ft/s, determine ( a ) the minimum value of the coefficient of static friction between the component and BC if the component is not to slide on BC while being transferred, ( b ) the values of θ for which sliding is impending. Fig. P12.62
The parallel-link mechanism ABCD is used to transport a component I between manufacturing processes at stations E, F, and G by picking it up at a station when θ = 0 and depositing it at the next station when θ = 180°. Knowing that member BC remains horizontal throughout its motion and that links AB and CD rotate at a constant rate in a vertical plane in such a way that v B = 2.2 ft/s, determine ( a ) the minimum value of the coefficient of static friction between the component and BC if the component is not to slide on BC while being transferred, ( b ) the values of θ for which sliding is impending. Fig. P12.62
Solution Summary: The author explains how to find the coefficient of static friction between the component and BC.
The parallel-link mechanismABCD is used to transport a component I between manufacturing processes at stations E, F, and G by picking it up at a station when θ = 0 and depositing it at the next station when θ = 180°. Knowing that member BC remains horizontal throughout its motion and that links AB and CD rotate at a constant rate in a vertical plane in such a way that vB = 2.2 ft/s, determine (a) the minimum value of the coefficient of static friction between the component and BC if the component is not to slide on BC while being transferred, (b) the values of θ for which sliding is impending.
Fig. P12.62
Branch of science that deals with the stationary and moving bodies under the influence of forces.
An ordinary egg can be approximated as a 5.5-cm-diameter sphere. The egg is initially at a uniform temperature of 8°C and is dropped into boiling water at 97°C. Taking the properties of the egg to be ρ = 1020 kg/m3 and cp = 3.32 kJ/kg·°C, determine how much heat is transferred to the egg by the time the average temperature of the egg rises to 82°C.
The heat transferred to the egg in this case is kJ.
Ship construction question. Sketch and describe the forward arrangements of a ship. Include componets of the structure and a explanation of each part/ term.
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