Engineering Your Future
9th Edition
ISBN: 9780190279264
Author: William C. Oakes, Les L. Leone
Publisher: Oxford University Press, USA
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Chapter 3, Problem 3.18EAA
To determine
Whether the salaries of the engineers should increase or not at the recent pace based on the current economic situation. Using other tables in the chapter.
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CORRECT AND DETAILED SOLUTION WITH COMPLETE FBD ONLY. I WILL UPVOTE.
9: The beam shown has a width of 80 mm and its allowable bending stress is not to exceed 120 MPa. Calculatethe required depth of the beam.
PROBLEM 4: A pre-stressed concrete pile of length L (m) is to be picked up by crane cables at two points, both equidistant
from the ends. If the concrete pile has a cross-sectional area of A (m²) and concrete has unit weight of Yc (kN/m³),
calculate the distance of the pick-up points from the end in terms of pile length. (Hint: to minimize the absolute maximum
moment, the maximum negative and maximum negative moments should be equal)
Correct and detailed solution only. Complete fbd. I will upvote.
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- 3: Given the shear diagram of the simply supported beam shown, properly illustrate the load and bendingmoment diagram considering that the beam carries a 5 kN-m clockwise moment at C.arrow_forwardCORRECT AND DETAILED SOLUTION WITH COMPLETE FBD ONLY. I WILL UPVOTE. 8: A 2-m cantilever beam with cross-sectionshown carries a uniformly distributed load of 12 kN/m. Dueto fixture requirements, a hole of diameter 150 mm isremoved from the cross-section. (a) Calculate themaximum normal compressive stress. (b) Calculate themaximum normal tensile stress. (c) Calculate anddetermine the state of stress at the lowest point of thecircular hole.arrow_forward5: A 12-m simply supported bridge is constructed with 100-mm concrete slab deck supported by precastconcrete stringers spaced 800 mm on center. Analyze the stringers when subjected to a moving load consisting of 3 evenly spaced axle loads at 3 m and equivalent to 20 kN, 30 kN and 40 kN respectively. The self-weight of the stringers is 8.5 kN/m and the concrete deck has a unit weight of 24 kN/m3 . Neglect all other superimposed loads. Calculate: (a) the maximum shear force in the stringers; (b) the maximum bending moment in the stringers.arrow_forward
- 2: The given continuous beam supports a uniform load with magnitude w. It has an internal hinge at C. (a)Calculate the maximum uniform load w that the beam can carry if it has a moment capacity of 65 kN-m for negativebending; (b) Calculate the maximum uniform load w that the beam can carry if it has a moment capacity of 85 kN-m forpositive bending; (c) Calculate the maximum uniform load w that the beam can carry if it has a shear capacity of 40 kN.arrow_forwardCORRECT AND DETAILED SOLUTION WITH COMPLETE FBD ONLY. I WILL UPVOTE. 10: A wooden beam 150 mm wide by 300 mm deep is loaded asshown. The maximum flexural stress developed is 8 MN/m2. (a) Computethe maximum moment the beam section can resist. (b) Determine themaximum value of the uniform load w in kN/m. (c) Calculate the maximumvalue of the concentrated load P.arrow_forwardThis is a tilt and rotation question. Here are notes attached for reference. ONLY UPLOAD A SOLUTION IF YOU ARE SURE ABOUT THE ANSWER PLEASE.arrow_forward
- (b): Let us first consider controlling the orbit of deputy spacecraft to rendezvous with chief spacecraft. Define x = [r] and x = x = R to represent the deputy orbital state and its target (= chief orbit) in Cartesian coordinates, respectively. The control input is thruster acceleration, u € R³, in the ECI frame. Denote the relative state by dx = x-x. Table 2 summarize the initial orbital elements. Table 2: Keplerian orbital elements at epoch (t = 0) for deputy and chief about Earth (ECI frame) Orbital element Deputy Unit Chief semi-major axis ad = 11500 ac 10000 km eccentricity inclination ed = 0.15 id=35 ee = 0.3 i = 50 degree right ascension of ascending node d = 50 Ως = 50 degree argument of periapsis true anomaly at epoch Wd Vd= 0 = 40 We = 40 degree Ve=0 degree (b.1): Derive the error dynamics of our system in ECI frame under the influence of u. (b.2): Consider a candidate Lyapunov function V = ½dr¹ K₁dr+dv₁dv, where K₁ = K, and K, > 0. Discuss the positive definiteness of V, and…arrow_forwardOne image show problem c.1 and c.2 that I need help with. The second image shows the lyapunov function and its derivative but it is NOT the same function that is given in problem. I have attached that image as an example.arrow_forwardThis is a tilt and rotation question. Here are notes attached for reference.arrow_forward
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