AIRCRAFT STRUCTURES LABORATORY

Aircraft Structural members include stringers, longerons, ribs, bulkheads, beams and columns. The main structural member in a wing is called the wing spar. The skin of aircraft can also be made from a variety of materials, ranging from impregnated fabric to plywood, aluminum, or composites.To make students aware of various elements of aircraft structural members which are subjected to various loading conditions, this laboratory is equipped with the following facilities.

FACILITIES

STATIC MODEL OF SUKHOI 30, MK 1

Scale : 1: 6

Length : 12 feet

Wing span : 8 feet withmissiles and landing gear

Material :High grade composite


STATIC MODEL OF SUKHOI – 30, MK 1

 

BEAM TEST SET UP WITH VARIOUS END CONDITION :-

Specification and items available:

A Sturdy Rigid Frame made of channel construction and designed for supporting Structures Experiments which allows to setup, remove and change experiment modules.

Two set of Load cells (50 Kg capacity) and digital load indicator with gear box arrangement for fine loading(double side loading)

A slider arrangement to accommodate 2 dial gauges  with magnetic stand  for vertical  and horizontal deflections

Different fixtures for mounting different sections of the beam is provided

Digital micro strain  3-channel strain indicator is provided along with equipment

Aluminum Sections of: Flat of I”, “Square’, ‘Z’ section, ‘C’ Section, L angle, D section and   thickness 3mm with Strain Gauging is provided along with the set up.

The dimensions of the equipment is  750 mm x 350mm x 1000mm ( H)
BEAM TEST SET UP

 

WAGNER BEAM SET UP COMBINED WITH COLUMN TEST PROVISION

Specifications and items available

  • A Wagner beam made out of aluminum rivets, ofdimension H =112 mm, B =75 mm, (top) L =650 mm capacityof 5 ton with straingauging is provided along with the setup
  • A sturdy frame with channel construction and gear box arrangement for loading
  • A load cell of 5 ton capacity  with digital indicator
  • 2 Dial Gauges with magnetic stand deflection measurement
  • Digital micro strain indicator

    • WAGNER BEAM SET UP COMBINED WITH COLUMN TEST PROVISION

    FABRICATION OF COMPOSITE LAMINATE (VACUUM BAGGING KIT)

    Vacuum bag moulding is a modification of hand lay-up, in which the lay-up is completed and placed inside a bag made of flexible film and all edges are sealed. The bag is then evacuated, so that the pressure eliminates voids in the laminate.

    Specification and items available:

    Vacuum bagging kit

    Fabrics available: Carbon, Kevlar, Glass

    Epoxy resin with hardener
    FABRICATION OF COMPOSITE LAMINATE

    SHEAR CENTER SET-UP

    This setup is used to determine the shear center of various open and closed channel sections like C-section, I-section, Z-section, L-section etc.,

    Specification and items available:

    2 Dial Gauges with magnetic stand deflection measurement

    Various channel sections

    SHEAR CENTER SET-UP

    LIST OF EXPERIMENTS:

  • Wagner beam-Tension Field beam
  • Verification of Maxwell’s Reciprocal theorem
  • Verification of Castigliano’s theorem
  • Verification of Superposition Theorem
  • To determine gyroscopic couple on Motorized Gyroscope
  • To find the stability and sensitivity of Watt and Porter governor
  • Balancing of rotating and reciprocating masses
  • To determine the time period for simple and compound pendulum
  • Forced Vibration of Beams
  • Bending Modulus of a Sandwich Beam
  • Unsymmetrical Bending of a Cantilever Beam
  • Determination of Shear Center of a Channel Section
  • Buckling Load of Slender Eccentric Columns
  • Determination of Material Properties of a Composite Laminate




    		•