Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

can someone provide a solution using mathematical writing Consider the suspension bridge shown below, where there are two main cables, hangers, and the deck. The

can someone provide a solution using mathematical writing

image text in transcribed
Consider the suspension bridge shown below, where there are two main cables, hangers, and the deck. The bridge is 20 meters long. The self-weight of the deck and any loads applied on the deck (such as people standing on this bridge) is transferred to the cables through the hangers. cable hangers deck towers Figure 1: Sketch of a suspension bridge. Set up a Cartesian coordinate system to model one of the main cables with the lowest point of this cable intersecting the vertical axis at height 5 meters. The distributed load (self-weight of the deck and loads applied on the deck supported by that cable) is described by a function w(x) and it is measured in Newtons per meter (N/m). The resultant force W (r) is given by W ( z) = w(u) du and it is measured in Newtons (N). The shape of the cable is given by a function y (x) whose derivative with respect to z, the horizontal distance from the lowest point, is given by the ratio of the resultant force and I, the tension in the cable at the lowest point measured in Newtons. Here y and I represent respectively the vertical and horizontal axis. a) Write down the differential equation that describes the shape of the cable in terms of W(x) and H. b) We are given that the function y is even, so we may assume > > 0. Hence, suppose that for z in |0, 10), the distributed load is approximated by the function W(I) = (3 + x) 9 (where we have implicitly multiplied by a constant to ensure that the units of W (x) are Newtons), and that the tension H at the lowest point of the cable is 55, 112 N (Newtons). Write down what you can say about the differential equation you found in part (a) and motivate your claims: what is the order? Is it linear? What method best applies to solve this equation? What is the domain of a solution expected to be? c) Hence, given the initial condition embedded in the wording of the problem, solve the differential equation by writing down all the steps and their justifications when needed. (In order to find the right initial condition, read the question again from the beginning: when I = 0, y =?) d) What is the value of y at z = 6 m? (Correct to exactly 5 significant figures.) To verify that you are on the right track, check your final answers here: c) y(I) = (You must enter an exact answer with no decimal approximations.) d) Answer = 5.0002 (Correct to exactly 5 significant figures.)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Combinatorics And Graph Theory

Authors: John M Harris, Jeffry L Hirst, Michael J Mossinghoff

2nd Edition

0387797114, 9780387797113

More Books

Students also viewed these Mathematics questions

Question

give a definition of quantitative job demands;

Answered: 1 week ago