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Redesign the box-beam of Example 1 and 2 to make better use of the material; i.e., changing the geometry of the cross-section in such a way that the serviceability (deflection) requirement is met without over dimensioning for strength as much as it is done in Example 2.
Perform the new design for a reliability of 99.5% assuming the load and strength variability are represented by Cσ = 0.2, CF = 0.3.
Example 1
Design a box section to be used as a cantilever beam of length L = 2 m subject to a tip load P = 1000 N. Limit the tip deflection δ to 1/300 of the span L of the beam.
Example 2
Verify that the box-beam (Figure beow) designed in Example 1 is sufficiently strong, for a reliability of 99.5%, assuming the load and strength variability are represented by Cσ = 0.2, CF = 0.3.
A uniform plate girder weighing 6000 lb is held in a horizontal position by two crane cables. Determine the angle a and the tension in each cable.
What type transistor connection is shown in Figure 3 below? What is the device that increases a transistor's power rating by reducing the internal heat faster?
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If for its inverter, the output signals swing between 0 and VDD, the "gain-of-one" points are separated by less than 1 3 VDD, and the noise margins are within 30% f one nother, what ranges of values of VIL , VIH , VOL, VOH, NML, and NMH can you ..
Describe the use of tracking devices bank notes and a soccer ball. Trojan Horses: Two articles describe efforts to prevent counterfeit chips and investigate the integrity of electronics.
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