AKTU Aircraft Instruments (BAE055) Syllabus PDF – B.Tech 3rd Year

UNIT-I (8 Hours)

Electronic Instrument System and logic gates Typical system arrangement and cockpit layout of Electronics instrument systems. Numbering System: binary, octal and hexadecimal: Demonstration of conversion between the decimal And binary, octal and hexadecimal systems and vice versa. Logic Circuits: Identification of common logic gate symbols and equivalent circuits. Application used for aircraft systems.

UNIT-II (8 Hours)

Data Conversion and data buses Analogue Data, Digital Data: Operation and application of analogue to digital, and digital to analogue converters, inputs and outputs, limitations of various types Data Buses: Operation of data buses in aircraft systems, including knowledge of ARINC and other specifications. schematic diagrams. Interpretation of logic diagrams.

UNIT-III (9 Hours)

Microprocessors Functions performed and overall operation of a microprocessor. Basic operation of each of the following microprocessor elements: control and processing unit, clock, register, arithmetic logic unit.

Integrated Circuits Operation and use of encoders and decoders; Function of encoder types; Uses of medium, large and very large scale integration. Multiplexing. Operation, application and identification in logic diagrams of multiplexers and de-multiplexers.

UNIT-IV (9 Hours)

Fiber Optics Advantages and disadvantages of fiber optic data transmission over electrical wire propagation:

Fiber optic data bus, Fiber optic related terms, Termination, Couplers, control terminals, remote terminals. Application of fiber optics in aircraft systems.

Electronic Displays Principles of operation of common types of displays used in modern aircraft, including Cathode Ray Tubes, Light Emitting Diodes and Liquid Crystal Display. Electrostatic Sensitive Devices. Special handling of components sensitive to electrostatic discharges. Awareness of risks and possible damage, component and personnel anti-state protection devices.

UNIT-V (9 Hours)

Electromagnetic Environment Influence of the following phenomena on maintenance practices for electronic system: EMC- Electromagnetic Compatibility EMI Electromagnetic Interference HIRF-High Intensity, Radiated Field. Lightning, lightning protection.

Digital aircraft system and associated BITE (Built in Test Equipment) Such as: ACARS-ARINC Aircraft Communication & Addressing and Reporting System, ECAM- Electronics. Centralized Aircraft Monitoring. EFIS-Electronics Flight Instrument System, EICAS- Engine Indication & Crew Alerting System, FBW-Fly by Wire, FMS-Flight Management System, GPS- Global Positioning System & IRS-Inertial Reference System.

Reference Books

1. Aircraft instruments E H J Pallett, Pearson.
2. Aircraft digital electronic and computer system Mike Tooley, Elsevier.
3. Aircraft instruments and integrated system E H J Pallett, Pearson.
4. Aircraft instrumentation and system, S Nagabhushana and L. K. Sudha, I. K. International Pvt Ltd,
5. Aircraft instruments and avionics Max F. Henderson, Jeppesen

UNIT-I (8 Hours)

Introduction Classification of Vibration Systems, Harmonic motion, Vector representation of harmonic motion, Natural frequency & response, Effects of vibration, superposition of simple harmonic motions, beats, Fourier analysis-analytical and numerical methods, Single Degree Freedom System, Equation of motion, Newton’s method, D’Alembert’s principle, Energy method etc, Free vibration, Natural frequency, Equivalent systems, Displacement, Velocity and acceleration, Response to an initial disturbance.

UNIT-II (8 Hours)

Single Degree Freedom Forced Vibration Forced vibration, Harmonic excitation with viscous damping, steady state vibrations, Forced vibrations with rotating and reciprocating unbalance, Support excitation, Vibration isolation, Transmissibility, Vibration measuring instruments, Displacement, velocity and acceleration measuring instruments.

UNIT-III (8 Hours)

Two Degree Freedom Introduction, Principal modes, Double pendulum, Torsional system with damping, Coupled system, Principle of vibration absorber, Un-damped dynamic vibration absorbers, Torsional vibration absorber, Centrifugal pendulum absorbers, Vibration isolators and Dampers. Critical speed of shafts

UNIT-IV (8 Hours)

Longitudinal & Torsional vibrations, Damped vibrations, Vibrations of systems with viscous damping, Logarithmic decrement, Energy dissipation in viscous damping, Whirling of uniform shaft, Shaft with one disc with and without damping, Multi-disc shafts, Secondary critical speed.

UNIT-V (9 Hours)

Multi-degree Freedom system Exact Analysis, Un-damped free and forced vibrations of multi-degree freedom systems, influence coefficients, Reciprocal theorem, Torsional vibration of multi-degree rotor system, Vibration of gear system, Principal coordinates, Continuous systems- Longitudinal vibrations of bars, Torsional vibrations of circular shafts. Multi Degree Freedom system: Numerical Analysis by Rayleigh’s method, Dunkerely’s, Holzer’s and Stodola methods, Rayleigh-Ritz method.

Reference Books

1. Mechanical Vibrations - G. K. Groover, Jain Brothers,Roorkee.
2. Mechanical Vibrations-Theory & Practice, S Bhave, PearsonEducation.
3. Mechanical Vibrations-Theory & Applications, Singhal, KatsonBooks.