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In drive units of mechatronic systems, it is necessary to minimize backlash. Discuss the reasons for this. Conventional techniques for reducing backlash in gear drives include preloading (or spring loading), the use of bronze bearings that automatically compensate for tooth wear, and the use of high-strength steel and other alloys that can be machined accurately to obtain tooth profiles of low backlash and that have minimal wear problems. Discuss the shortcomings of some of the conventional methods of backlash reduction. Discuss the operation of a drive unit that has virtually no backlash problems.
1. Define pyrolysis in its most general sense. 2. Pyrolysis products include solids, liquids, and non-condensable gases. Provide a high level summary of the chemical composition of each of these products.
Air flows isentropically through a convergent-divergent passage with inlet area 5.2 cm^2, minimum area 3.2cm^2 and exit area 3.87 cm^2. At the inlet the air velocity is 100m/s, is 680 kPa, and temperature 345 K.
a small satellite is orbiting around the earth at altutude 300kma what is the tangential speed of the sattelite to
Determine an equation for the efficiency of the gear train in terms of the load (torque) on shaft 2 and determine the input power required at shaft 1.
consider water as the substance at 30 bar and 450c.a calculate specific volume m3kg using ideal gas equation of state.b
a linear bearing supports a load w has a contact area a and travels at a maximum velocity v. what expression will be
carbon monoxide and water vapor react to form carbon dioxide and hydrogen. water at 25c is fed to the reactor 50 in
Air initially at 290 K, 1 bar undergoes the following processes: polytropic compression to 5 bar with n = 1.19 and isentropic expansion to 1 bar. Sketch the processes on a T-s diagram, Determine the temperature of state 2 and
Determine the moments of inertia of the combined section with respect to centroidal axes respectively parallel and perpendicular to the web of the channel.
find the entropy production in a throttling process per unit mass for ammonia. take the inlet state as specified as
suppose the rate of growth of a bacterial population n cellsliter is described by dndt kn -1000. the terms represent
A 2-in-diameter stream of water having a velocity of 40 ft/s strikes the edge of a flat plate such that half the stream is deflected downward as shown in Fig. 16.16. Calculate the force on the plate and the moment due to the force at point A.
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