The automatic ship-steering system

Assignment Help Basic Statistics

Reference no: EM131127826

Consider the automatic ship-steering system discussed in Problem P8.11. The frequency response of the open-loop portion of the ship steering control system is shown in Figure P8.11. The deviation of the tanker from the straight track is measured by radar and is used to generate the error signal, as shown in Figure P9.15. This error signal is used to control the rudder angle δ(s).

(a) Is this system stable? Discuss what an unstable ship-steering system indicates in terms of the transient response of the system. Recall that the system under consideration is a ship attempting to follow a straight track.

(b) Is it possible to stabilize this system by lowering the gain of the transfer function G(s)?

(d) Repeat parts (a), (b), and (c) when switch S is closed.

Problem P8.11

Automatic steering of a ship would be a particularly useful application of feedback control theory [20]. In the case of heavily traveled seas, it is important to maintain the motion of the ship along an accurate track. An automatic system would be more likely to maintain a smaller error from the desired heading than a helmsman who re corrects at infrequent intervals. A mathematical model of the steering system has been developed for a ship moving at a constant velocity and for small deviations from the desired track. For a large tanker, the transfer function of the ship is

where E(s) is the Laplace transform of the deviation of the ship from the desired heading and δ(s) is the Laplace transform of the angle of deflection of the steering rudder. Verify that the frequency response of the ship, E(jω)/δ(jω). is that shown in Figure P8.11.

Reference no: EM131127826

Questions Cloud

Determine the magnitude of the gain : Electronics and computers are being used to control automobiles. Figure P9.14 is an example of an automobile control system, the steering control for a research automobile. The control stick is used for steering. A typical driver has a reaction ti..

What is the expected price of the stock next year : Gordon & Co.'s stock has just paid its annual dividend of $1.10 per share. Analysts believe that Gordon will maintain its historic dividend growth rate of 3%. If the required return is 8%, what is the expected price of the stock next year?

What is the term used for describing the judgmental or : A.M Turing developed a technique for determining whether a computer could or could not demonstrate the artificial intelligence.Presently this technique is called ? When talking to a speech recognition program, the program divides each second of your ..

What are the general types of amino acid side chains : What are the general types of amino acid side chains found on the outer surface of the potassium ion channel structure?

The automatic ship-steering system : Consider the automatic ship-steering system discussed in Problem P8.11. The frequency response of the open-loop portion of the ship steering control system is shown in Figure P8.11.

Automatically follows tape track laid out on a factory floor : An electric carrier that automatically follows a tape track laid out on a factory floor is shown in Figure P9.16 (a) [15]. Closed-loop feedback systems are used to control the guidance and speed of the vehicle.

Which kind of planning consists of successive representation : Which kind of planning consists of successive representations of different levels of plan? The component of an ICAI (Intelligent Computer Assisted Instruction) presenting information to the student is the? The characteristics of the computer system c..

Provide an exact number using radicals : Use reference angles to find exact value - Provide an exact number using radicals as needed and rationalize all denominators.

The current depreciation of the old equipment to the date : On October 1, Hot Springs Co., a water distiller, acquired new bottling equipment with a list price (fair market value) of $462,000.

User Account

All Pages