Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

PART 1

Section 1

An antenna shown in Figure is to be adjusted from its current position to a new desired position through turning a potentiometer at an angle θi(t). The potentiometer converts the angular displacement in voltage. Another potentiometer is employed to convert the angular position of the antenna in voltage which then serves as a feedback system. The differentiation between the voltage outputs from the two potentiometers is amplified in two stages to supply a proper voltage level to a motor driving antenna. The system normally operates to drive the error to zero i.e. when the input and output voltages (produced through the potentiometers) are equivalent, the error will be zero and consequently the motor receives no voltage and halts to drive the antenna. In this control process, apply the six (6) steps to model and analyse the given system by which the following items shall be subsequently produced.

a) Block diagram
b) Schematic diagram
c) Simplified diagram 
d) The transfer function of the system θ0 (s)/θi (s)
e) The plots of the system responses while working on the design analysis.
f) Discussion on the following cases:

i. If the gear diameter attached to the antenna is increased, what is the effect on the system response and why? 
ii. If the system is ensured to be always stable and that the steady-state error is kept at zero, what are the appropriate measures? 
iii. If strong wind strikes unequally across the face of the antenna plate, how will it affect the response of the system? What is the appropriate method to overcome a problem it creates?

Note: for the above three cases, prove your explanation and illustration with appropriate evidences in terms of numerical values and plots.

Section 2

Design a compensator such that the step response of the system yields the following changes:

• The percent overshoot shall be reduced by 50%
• The settling time shall be reduced to 3.0 sec.

Note: Should you not be able to satisfy the given specification with one type of controller, you may use other type. Any particular technique in the design procedures is left for you to decide. You must produce all the evidences of your work in the form of numerical values and plots.

931_layout of atenna.jpg

Parameter Name                         Value
Differential Amplifier gain:              2
Power amplifier Gain:                   100
Power amplifier frequency shift :    50
Armature Resistance:               10 k Ω
Rotor Inertia:                       0.03 kg-m2
Rotor damping:                 0.02 N.m s/rad
Load Inertia:                          4 kg-m2
Load damping:                    2 N.m s/rad
Back emf constant:                1 V.s/rad
Motor Torque Constant:          1 N.m/A
Gear 1 number of Teeth:             40
Gear 2 number of Teeth:           200
Gear 3 number of Teeth:           250
Input Potentiometer Gain:         2.0
Output potentiometer Gain:      1.5

PART 2

Report

prepare a report of minimum 20 pages covering the following content:

• Introduction           
• Derivation of the system model                  
- Differential Equation
- Laplace transform 
- Transfer function 
• Analysis of the system response  
- Manual calculation
- Simulation result
- Discussion of the simulation results
- Illustration and discussion on the case problems
• Control Design and Analysis                  
• Conclusion

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M91216

Have any Question? 


Related Questions in Mechanical Engineering

1 at 60degc the surface tension of water is 00662 nm and

1. At 60°C the surface tension of water is 0.0662 N/m and that of mercury is 0.47 N/m. Determine the capillary height changes in these two fluids when they are in contact with air in a glass tube of diameter 0.55 mm. Con ...

Example how an p-channel flash eprom would work is the

Example how an p-channel flash EPROM would work. Is the p-channel worse or better than the n-channel asides form speed? Estimate the write and erase times (using the Fowler-Nordheim tunneling formulae for a triangular ba ...

What is the stiffness of the bolt and the stiffness of the

What is the stiffness of the bolt and the stiffness of the joint? What is the resilience of the bolt and of the joint members? What is the stiffness ratio of this assembly? What is the increase in bolt tension and the de ...

Given the result of problem 67 estimate the magnitude of

Given the result of Problem 6.7, estimate the magnitude of the radial deflection of a pressurized cylinder as a fraction of its thickness Problem 6.7: Given that the hoop strain is likely to be a very small number, estim ...

1 discuss the four best-known practical methods of

1. Discuss the four best-known practical methods of generating residual magnetism. 2. Discuss the advantages of a matrix partition to represent the transient state of an aggregation of SEIGs. 3. Using the state variable ...

1 how do the magnitudes of the biceps force b and joint

1. How do the magnitudes of the biceps force B and joint reaction J change if the total weight w of the forearm and hand are included in the analysis and are assumed to be uniformly distributed over the forearm length L? ...

1 a venturi meter with an inlet diameter of 06 m is

1. A Venturi meter with an inlet diameter of 0.6 m is designed to handle 6 m3 /s of standard air. What is the required throat diameter if this flow is to give a reading of 0.10 m of alcohol in a differential manometer co ...

As can often be seen in a kitchen sink when the faucet is

As can often be seen in a kitchen sink when the faucet is running, a high-speed channel flow (v 1 , h 1 ) may ''jump'' to a low-speed, low-energy condition (v 2 , h 2 ). The pressure at sections 1 and 2 is approximately ...

In a small generating system there are two generators in

In a small generating system, there are two generators in parallel. One of them is a synchronous generator, and the other, an IG. The common load is 3.0 kW with a power factor of 0.92. If the IG supplies only 1.0 kW of t ...

A water-filled u-tube manometer is used to measure the

A water-filled U-tube manometer is used to measure the pressure inside an air tank. The water level in the U-tube on the side connected to the tank is 5 ft above the base of the tank. The water level in the other side of ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro