Machine Design

Design a compound, spur gear train for a ratio of -80:1 and diametral pitch of 12. Specify pitch diameters and numbers of teeth. Sketch the train to scale.

A V-block clamp consists of 3 components a base, yoke and adjusting screw. Using a rule, measure the sketches below and produce a 3rd angle projection drawing for each component. All drawing must be fully dimensioned, with the relevant projection symbol, on a completed drawing sheet. Indicate the important tolerances for each component. A completed 2 view assembly drawing is also required showing each component in its relevant position,with information bubbles relating to a parts list on the drawing. The parts list must indicate, part name,page number, material, and number off, for each component.

4. (2 points) Show a test matrix for a two-level full factorial experimental design where the three factors to be investigated are: Color (Red/Blue), Shape (square/hex), and Size (big/little). Include the levels for the 2-factor interactions.

Determine the exit temperature. (You must provide part.)an answer before moving to the next The exit temperature is________K.

8. You have created the following drawing with its requirements. The manufacturing department has made the first part and conducted an inspection and collected the data shown in the second drawing. Complete the table below deciding if the five features are accepted or rejected. [40 pts.]

Problem 2 (20 points)-A vertical column of 1018 hot-rolled steel ( kpsi, kpsi, kpsi, kpsi) is 10 in wide. An attachment of the same material has been designed to support a static load of 20kip at a clearance in as shown in the figure. The attachment is welded with a E6010 electrode ( kpsi, kpsi, kpsi). The length of the weld bead is given by in and in. (a) Determine the primary shear on the weld as a function of theleg size . (b) Determine the secondary shear on the weld at a critical pointas a function of the leg size . (c) Determine the total shear at the critical pointthe leg size .as a function of (d) Using kpsi, determine the leg size .

2. A 2-in steel plate and a 1-in cast-iron plate are compressed with one bolt and nut. The bolt is ½ in -13 UNC. a) Determine a suitable length for the bolt, round up to the nearest 4 in, if washers are not being used. b) Determine the bolt stiffness if E=30x10^6 psi

Belt design A flat belt operates on pulleys of diameters 125 and 375 mm. The smaller pulley operates at 1500 rpm. The centre distance of the pulleys is 1525 mm. The flat belt has a weight of 5.4 N/m. Determine the linear belt speed. Determine the belt tension ratio for a coefficient of friction of 0.3 and an angle of wrap of 170.6° on the smaller pulley. Determine the power that can be transmitted with a belt pre-tension = 1 kN.

1. (5 Points): Choose an engineering company that you would someday consider working for. From the information found on their Web site, write a one-page paper on the engineering problems that they are solving, projects, and how they are addressing their customer's needs.

3) Determine the pipe profile (square pipe) needed for the most critical compression rod of the attached grid when the material is $355 (Fe52). The material's Young's modulus is 210 GPa, Shear modulus is 80 GPa and Poisson's ratio is 0.3. the length of each rod can be used as the buckling length. 3,5 m 100 KN 3,5 m 90 KN 55 KN 3,5 m I= 2,5 m