Chapter 9, Problem 9.3P

5. (计算题) Calculate the DOF of following mechanisms. If there are compound hinge, passive DOF or Redundant Constraint, please point them out. 品 ⑤A (a) 凸轮拨杆机构

6.(计算题) Calculate the DOF of following mechanisms. If there are compound hinge, passive DOF or Redundant Constraint, please point them out. E D A B C F

A hot surface at 150°C is to be cooled by attaching 3-cm-long, 0.25-cm-diameter aluminum pin fins (k = 237 W/m-K) to it, with a center- to-center distance of 0.6 cm. The temperature of the surrounding medium is 30°C, and the heat transfer coefficient on the surfaces is 35 W/m²K. Determine the rate of heat transfer from the surface for a 1-m × 1-m section of the plate. Also determine the overall effectiveness of the fins. 0.6 cm 0.25 cm The total rate of heat transfer is kW. The fin effectiveness is

Consider a stainless steel spoon (k = 8.7 Btu/h·ft·°F) partially immersed in boiling water at 200°F in a kitchen at 75°F. The handle of the spoon has a cross section of 0.08 in × 0.5 in and extends 7 in in the air from the free surface of the water. The heat transfer coefficient at the exposed surfaces of the spoon handle is 3 Btu/h·ft2·°F.   NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.  A spoon is placed inside the container, such that the distance of the water level from the top end of the handle of the spoon is 7 meters. T sub air is indicated in the region outside the container.       Identify the assumptions required to solve the problem.   Check All That Apply One-dimensional heat transfer analysis is used to solve the problem. One-dimensional heat transfer analysis is used to solve the problem. Bi-dimensional heat transfer analysis is used to solve the problem. Bi-dimensional heat transfer analysis is…

A turbine blade made of a metal alloy (k=17 W/m-K) has a length of 5.3 cm, a perimeter of 11 cm, and a cross-sectional area of 5.13 cm². The turbine blade is exposed to hot gas from the combustion chamber at 1133°C with a convection heat transfer coefficient of 538 W/m²K. The base of the turbine blade maintains a constant temperature of 450°C and the tip is adiabatic. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Hot gas h=538 W/m²K -Turbine blade k = 17 W/m-K p=11 cm, L=5.3 cm A = 5.13 cm² -T=450°C Determine the heat transfer rate to the turbine blade. W. The heat transfer rate is

Consider a very long, slender rod. One end of the rod is attached to a base surface maintained at Tb, while the surface of the rod is exposed to an air temperature of 400°C. Thermocouples imbedded in the rod at locations 25 mm and 120 mm from the base surface register temperatures of 325°C and 375°C, respectively. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. . x1 32 x Calculate the rod base temperature (°C). The rod base temperature is °C. Air T∞

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This is a tilt and rotation question. Here are notes attached for reference. ONLY UPLOAD A SOLUTION IF YOU ARE SURE ABOUT THE ANSWER PLEASE.

What is the difference between true stress/strain and engineering stess/strain? And how do I calculate them?