Near net preforming and 3D textiles designs and engineers the preform to meet the functional and performance requirements of the end product. Embracing the formative...
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Highlights Extensive research in the area of turbulence and transition for incompressible flows The in-house incompressible flow solution code 3D-PURLES (3D...
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Acoustic Emission is the phenomenon of generation of transient elastic waves due to rapid release of strain energy caused by structural alterations within a material. It...
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The synthesis of the radiation pattern of antenna array mounted on the platform (planar/non-planar) has been done using efficient adaptive algorithm. Various adaptive...
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Jet noise continues to be the dominant component of community noise during the takeoff segment, even for modern commercial aircraft. Aeroacoustics of high speed jets...
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Special techniques have been developed to carry out aerodynamic testing to investigate phenomena such as flutter and divergence in 1.2m tunnel. Flutter refers to dynamic...
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Aerospace Weather Research Group Following the closure of the Flosolver Unit, persons involved in numerical modelling were assigned to the CTFD Division. Since...
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Tests on specially-designed models of air intakes of aircraft and missiles are necessary to study their design and off-design performance. The models feature extensive...
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An aircraft simulation model consists of several sub system models for 6 DOF flight dynamics, engine, fuel, sensors, landing gear, hydraulic and electrical systems. ...
More An Air Data System (ADS) plays a key role in stabilization, control and improving performance of modern fighter aircraft. Airdata sensors installed on aircraft generally...
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Anodization is a simple electrochemical process in which thicker oxide layers (2 to 30 µm) can be obtained on aluminium and its alloys in a suitable electrolyte bath by...
More Aqueous slurry polymerization is the most widely adopted techniques/process for acrylic fiber manufacturing. Water is used here as a continuous phase of the system. The...
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Autoclave molding technique is an advanced composite manufacturing process. It is widely used in the aerospace industry to fabricate high strength / weight ratio...
More Maximizing performance of thermoset composite materials requires, amongst other things, an increase in the fiber to resin ratio and removal of air pockets or voids. This...
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A precise and accurate measurement of aerodynamic forces and moments in the wind tunnel is possible only if the strain gauge balances are calibrated frequently,...
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Condition monitoring is used to dynamically monitor various engine parameters and helps in detecting the faults before a catastrophic failure occurs. Condition...
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The CTS is a sophisticated computer – controlled electro-mechanical system for wind tunnel simulation of the trajectory of a store released from a parent aircraft. DC...
More The carbonization processes are preceded by thermo-oxidative stabilization in the heat treatment line for the continuous conversion of acrylic precursor fibers into...
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Cathodic arc deposition or Arc-PVD is a physical vapor deposition technique in which an electric arc is used to vaporize material from a cathode target. The vaporized...
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Carbon fibre (Cf) reinforced ceramic matrix composites (CMCs) are attractive for various applications due to low density, high specific strength, and good...
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Co-precipitation is a simple, economical and industrially viable technique that can be used for the synthesis of technologically important oxide materials. The steps...
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CGS process is used to obtain coatings of soft and ductile metals such as copper, nickel, aluminium, zinc, tin and their alloys and stainless steel. Homogeneous coatings...
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CFD code development is a niche area as opposed to employing CFD codes for applications and is hence, usually confined to academic institutes, research organizations and...
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Compositional analysis methods can be used to determine the components of an unknown material, to confirm the identity of a suspect material and to identify differences...
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Detail Design acts as a focal point and provides comprehensive solutions for the product development from conceptual-to-component assembly. It has exhaustive...
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The major limitations of thermoset polymers are their inability to be re-melted or recycled, shorter shelf-life, higher storage costs, and longer curing times thereby...
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The dry jet wet spinning is a combination of both wet and dry spinning techniques for fiber formation. In this technique, the spinneret is located above the spin...
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Trajectory of a separated store from LCA has to be estimated with its standalone inertial measurement unit (IMU) sensor data. It is proposed that LCA flight data (IN-GPS...
More Extended Kalman filter (EKF) solution for attitude and heading estimation was proposed with code phase GPS measurements aiding the micro electro mechanical systems...
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The design of an EKF is addressed for the purpose of estimating the position, velocity, attitude and heading of an Aircraft. While, estimating the attitude and heading...
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Electropolishing is reverse of electrodeposition process in which material is removed instead of deposition from the component by means of electrochemical process. By...
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Off late, aircraft uses a combination of pneumatic, hydraulic, and electric systems. Future aircrafts will have electrical system and electrically powered equipment’s....
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Electrodeposition process is based on the principle of Faraday’s law of electrolysis. It is a simple wet chemical process used to deposit variety of metals, alloys and...
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Electroless nickel plating (EN) is a simple auto-catalytic chemical reduction process for depositing metals, alloys and composites. In this process metal ions are...
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Electrospinning is an efficient and convenient process for the preparation of thin fibers with diameters ranging from tens of nanometer to several micrometers. By the...
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In present era, low-observability is one of the critical requirements in aerospace sector, especially related to defence. The stealth technology essentially relates to...
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The antenna array system of aerospace and naval platforms are exposed to extreme environment such as rain, hailstorms, snow, wind, extreme temperatures etc. It is,...
More Optimization techniques plays a key role almost all the engineering applications. Centre for electromagnetics has carried out the soft computing based design and...
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CSIR-NAL Bangalore has delivered several airborne radomes for various national programs during the past thirty years. CSIR-NAL team (comprising of CEM, MT, CSMST, STTD,...
More Based of theoretical concept MATLAB based scripts have been used for aero-data and performance parameters estimation. Tools like AAA and PACELAB also have been used for...
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Development of Enhanced Synthetic Vision System (ESVS) for transport aircraft is one of the major activities initiated by Multi Sensor Data Fusion (MSDF) group of FMCD...
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Impact damages due to events such as tool drops, runway debris, hailstones etc. can reduce the load carrying capacity of composite structures. Often they result in...
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Wet spinning of fiber is a form of solution spinning where polymer powder is dissolved in a suitable solvent and the polymer solution is extruded through spinneret...
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As mentioned above, the numerical methods such as MM-GSM, equivalent circuit, and TLTM methods are used for the analysis of FSS based radomes, RAS, and antennas. Apart...
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Colour and B/W schlieren & Shadowgraphy Surface flow visualisation using oil flow techniques Video and still photography High speed schlieren 1....
More Presently developing algorithms for FADS. The algorithm is proven on CFD data in a 6 DOF simulation platform. Facilities where it can be used: all stealth aircraft...
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Force and moment measurement is very essential at given speed range in order to aerodynamically characterize any flying vehicle. The three forces and three moments viz;...
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A single - degree - of - freedom forced oscillation rig has been developed for measurements of dynamic stability derivatives. The rig features an electrodynamic shaker...
More Initially, free oscillation technique was developed for measurement of pitch and yaw damping derivatives. The free oscillation rig featured a crossed-flexure pivot and a...
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The Materials Science Division (MSD) of CSIR - National Aerospace Laboratories has been carrying out work on Friction Stir Welding for the past three years. The Division...
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Frequency selective surfaces (FSS) are widely used as spatial filter for the design of absorbers, radomes, dichroic plates, and reflector antennas in the microwave and...
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Geo-location technique is developed in order to determine the location of the target geological coordinates from the image captured from the UAV onboard camera. Target...
More Gravimetric analysis is a class of lab techniques used to determine the mass or concentration of a substance by measuring a change in mass. At CCFP this is used to...
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The accuracy of the CFD simulation results is directly linked to meshing. the better the mesh in quality, the more accurate results can be expected. It is a critical...
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Side-wall mounted half model support system enables testing of larger size half-models to reduce scale effects and to increase accuracy of the results. The model can be...
More The upcoming national programs on fifth generation combat aircrafts either manned or unmanned, requires a low observable platform. In this context stealth...
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HVOF is a high velocity and low temperature thermal spray process used for depositing dense metal, alloy, carbide and cermet coatings. The carbide coatings developed by...
More Dedicated crossed-flexure-pivot balance for measurement of hinge-moment on control surface has been developed. These are specially designed to measure small hinge-moment...
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Hot-filament chemical vapor deposition (HFCVD) is a simple and cost effective method which has been used to deposit a variety of materials. In the HFCVD technique, a...
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Working towards indigenous development of advance avionics technologies namely Enhanced Vision System (EVS), Synthetic Vision System (SVS), combination of the two known...
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At CTFD, our group has been actively involved in the development of new tools for handling high speed flows to provide accurate and reliable results. In-house RANS code...
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Image registration is pre-request for image fusion. There are many techniques are available in open literature. Control point registration is the best and provides...
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One of the major concerns during manufacturing process of composite parts using prepregs is the occurrence of accidental inclusions like release film, prepreg back up...
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Most of the composite structures for the aircraft have been developed using carbon- epoxy prepreg material system, which can withstand maximum service temperature of...
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Longitudinal flight control system designed based on total energy control system (TECS) using ℒ1 adaptive control theory. The proposed composite control architecture...
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The automated layer by layer deposition system is computer controlled and enables deposition of different coatings with customized dipping speed, withdrawal speed and...
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A linear analysis of any structure is generally performed when structure is expected to show linear behavior. Major aerospace structure components like wing, vertical...
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Sputtering is a versatile physical vapor deposition process to fabricate a variety of metallic, oxide, nitride and carbide coatings. At SED, different types of...
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The mechanical properties of a material are those properties that involve a reaction to an applied load. Mechanical properties are also used to help classify and...
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A short overview on the Mesh Free CFD activities at NAL Development of mesh free methods in CFD is an active research area. These methods have a lot of potential to...
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Micro Arc Oxidation (MAO) or Plasma Electrolytic Oxidation (PEO) is an electrochemical oxidation process generally applied to Al, Mg and Ti. Dense MAO coatings are...
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Frequency selective surfaces (FSS) are widely used as spatial filter for the design of absorbers, radomes, dichroic plates, and reflector antennas in the microwave and...
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Model based design framework is getting popular in the aerospace sector for flight control applications. It supports the following concepts Providing a common design...
More Modelling and simulation techniques are used in all the flight simulator facilities mentioned. Computationally efficient table look-up techniques for real-time...
More The airfield scenario was modeled based on the airport layout information available in Jeppesen Maps. Similarly, airspace scenario was modeled based on the air routes...
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Materials Science Division, CSIR-NAL has developed a unique shaping method called Mouldless Casting for advanced ceramic materials to fabricate scaffold structures...
More Multi sensor data fusion group of FMCD has developed advanced multi sensor data fusion techniques and algorithms for processing and fusing data from multiple sources to...
More An aircraft engine is the component of the propulsion system for an aircraft that generates mechanical power (thrust) that is used to move the aircraft through the air...
More The thermo-oxidative stabilization process is the first stage in the heat treatment line. The process is the rate limiting step in the entire heat treatment line, owing...
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In recent years, tremendous research advances have been made in the scientific base for nano materials (e.g. CNT, CNF and Graphene), and this has enabled significant...
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ACD is immensely involved in finite element solution techniques for providing solutions for wide range of static, dynamic, buckling, optimization and non-linear (both...
More The flight controller is developed using Nonlinear Dynamic Inversion (NDI) in combination with time scale separation, static control allocation and integrator...
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Surface oil flow visualization is a technique used to capture the streak lines formation on the surface due to the shear force acting the discrete oil dots sprayed on...
More It is a process, which uses a rigid one-sided mould that imparts the surface finish to one side of the component. The thickness of the composite product is determined by...
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The optical microscope, often referred to as light microscope, is a type of microscope which uses visible light and a system of lenses to magnify images of small...
More Standard IEEE Calibration methodology and test procedure followed to calibrate MEMS IMU. The intent is to find out stochastic and deterministic errors in tri axial rate...
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Methodology Panel methods are among the most versatile and powerful tools developed in the last three / four decades for the aerodynamic analysis of complex...
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Output Error Method, Filter Error method, Extended Kalman Filter, Feed Forward Neural Networks and Discrete Fourier Transform methods for Identification of Aerodynamic...
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1.Particle Image Velocimetry One of the serious limitations of the LDV technique is that it is a pointwise measurement. This in addition to the increased time required...
More Aviation safety has been the primary focus in the industry. Aviation human factors are the main cause of aviation accidents. Effective features will be derived from the...
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Conformal Piezoceramic coating on Aerospace Grade Aluminum metal, Composite Structures and Silicon wafer has been successfully developed in the Materials Science...
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It is a chemical vapor deposition process which uses plasma for thin film deposition. Thin films and coatings can be deposited from respective precursor chemical vapors...
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It is an ion implantation process that modifies the surfaces using RF plasma for enhancing tribological properties. Samples with any shape and size can be processed by...
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In this process the diffusion of nascent nitrogen inside the crystal lattice of a metal structure takes place leading to case hardening to increase the service life of...
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Atmospheric plasma spray facility is one of the important and most widely used thermal spray techniques. In atmospheric plasma spray process, ceramic powders get...
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The low detectability of aircraft from hostile radar sources can be practically achieved through shaping, radar absorbing coating (RAM/RAS), engineered materials, or...
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Modern design and light-weight are the prerequisites for sustaining global competitiveness in the aerospace industry. Notably, stiffened skin construction made of...
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Electronic Pressure Scanner (ESP) - is generally used for acquiring mean surface pressure data. An in-situ method is adopted for calibrating the scanner using a Druck...
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Surface pressure measurements are of great importance for basic fluid dynamics experiments, studying specific flow phenomena, and validating computational fluid dynamics...
More PSO based Optimization Package for Metamaterial Split Ring Resonator Configurations is a software CAD package developed in-house for estimation of structural parameters...
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Infrared Pulse Thermography is a non-contact, non-intrusive NDE technique that is widely used for the inspection of aircraft structures. The technique employs a burst of...
More Formation flying control law for micro air vehicles (MAVs) based on a combination of pursuit guidance and l-psi control algorithm are designed, developed and flight...
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An accelerated numerical-based method for RCS computation of different conducting/dielectric electrically large structures has been developed for the computation of...
More The RCS estimation and analysis of different canonical and hybrid shapes has been carried out with the help of surface modeling, ray tracing, and methods like physical...
More Ray tracing package: For cuboid, building corridor, rectangular tunnel, and open streets is a software package developed in-house that can be used to generate ray path...
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Defense applications demand design of targets that exhibit the smallest possible RCS so as to be undetectable and untraceable for enemy radars by highly sensitive...
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The reactive processing is a simultaneous synthesis and sintering method wherein high purity, high density with excellent mechanical properties ceramics and ceramic...
More Developed algorithms for real time parameter estimation of aircraft. The potential application of these algorithms are: Near real time stability margin estimation,...
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Novel sensor fusion architecture is proposed to provide complete navigational solution for micro aerial vehicles (MAV) using low cost sensors and micro controller. The...
More Vibration responses due to acoustic loading on the structure are measured using accelerometers mounted at critical locations on to the structure. Acquired time domain...
More Refined Ray Tracing Package for Aircraft Cabin Applications is a software developed in-house towards efficient computation of ray path details inside aircraft passenger...
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Resin transfer moulding processes are a family of processes wherein, the fabric reinforcements are laid up into the mould as a dry stack of materials, pre-compacted to...
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Rheometric analysis generally refers to experimental techniques used to determine the flow behavior and deformation of a material, i.e. the quantitative and qualitative...
More A special rig has been developed to measure roll damping on such models and an isometric sketch of the rig is shown in Fig. 2 . The control system enables the model to...
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National Aerospace Laboratories (NAL), is India's second largest aerospace firm after Hindustan Aeronautics (HAL). It was established by the Council of Scientific and...
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A semi-automatic screen printing facility is being used for the fabrication of SOFC electrodes and micro-heaters for oxygen sensor. SED, NAL has developed expertise to...
More Unmanned Aerial Vehicle (UAV) has become a quiet a bit popular over the last 10 years because of its humongous growth in both military and commercial applications. Every...
More The objective is to ensure aeromechanical clearance for the integration of new stores on a frontline fighter aircraft of Indian Air Force. Carriage and operating...
More The method of virtual reality for aircraft simulation provides the required cues for the pilot to feel the dynamics of the modeled aircraft. FMCD flight simulators are...
More Advancement in Sliding mode control (SMC) in the past few decades has helped researchers in solving many interesting practical control problems, like robotics control,...
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Smoke flow visualization is a technique used to capture the instantaneous streamlines formation off the surface of the wind tunnel model. The streamlines clearly...
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Sol-gel process is a versatile wet-chemical green technique for the preparation of various functional coatings. Sol-gel coatings are generally fabricated by spraying,...
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Solution combustion process is a very simple, fast and economical process for the synthesis of all kinds of ceramic oxides. The process involves the combustion of a...
More The solution polymerization technique for acrylonitrile polymerization has several advantages over the aqueous slurry polymerization. The main economic advantage is the...
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Spray drying is used for preparing flowable powders. In this method, liquid or slurry of the ceramic powder is rapidly dried with a hot gas. This method is used for...
More Performance of multistage rockets critically depends on the time delay between the jettisoning of the lower stage and ignition of the upper stage to avoid aerodynamic...
More Research studies are carried out on human factor issues in an aircraft program such as pilot’s mental workload assessment and pilot Vehicle interface. Several tools...
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Steady pressure measurement on the surface of the wind tunnel model is carried out to study the aerodynamic pressure and load distribution on the different components....
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Manufacturing aircraft composite components requires maximum precision and quality in all process steps including the assembly of subcomponents. Major fully integrated...
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Recent advancements in Fiber optic sensing technology make it possible to acquire the strain profile in a structure in a distributed manner. Rayleigh Based Fiber Optic...
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Out of different sensors for Aircrafts Structural Health Monitoring, Fiber Optic Sensors are the best choice due their small size, lightweight, ease of multiplexing and...
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One of the widely used inspection methods to ensure structural integrity of an aircraft is the visual inspection. In this technique a qualified inspector goes around the...
More The surface treatment of carbonized fibers is done by electrochemical oxidation process. The unit comprises of a system of 1) graphite rollers at the surface, which act...
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Tapecasting is an important ceramic processing technology in which ceramic suspension is cast as a thin or thick layer onto a flat surface using a doctor blade followed...
More Theoretical study of disturbance evolution in parallel shear flows. There have been numerous studies on the receptivity, transient growth and nonlinear...
More Titrimetric analysis is a method of analysis in which a solution of the substance being determined is treated with a solution of a suitable reagent of exactly known...
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In order to full-fill the demand of high performance radome in modern radar antenna systems at millimeter wave frequency regime. The design and analysis of metamaterial...
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Tuft flow visualization is a technique used to capture the instantaneous flow pattern formed by the tufts (light and flexible) stuck on to the model surface. The...
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The above picture shows TRMS mounted in wind tunnel with an aircraft model. The main features of TRMS are : Versatile model support system to provide required...
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Advanced composites materials have become the front-runners in the aerospace industry. These materials have been extensively used in primary structures of recent civil...
More A multi-channel unsteady pressure measurement system, in conjunction with high frequency response pressure transducers flush-mounted on the surface of the model, is used...
More One of the main systems in a flight simulator is the ‘Instructor station’. Instructor station helps the user to initiate/control the simulation or to set mission...
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This method is an extension of the wet lay-up process in that the pressure is applied to the laminate once laid-up in order to improve its consolidation. This is done by...
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Majority of aerospace composite components are manufactured using prepreg / autoclave moulding process. Prepregs are perishable materials and have limited life. Prepregs...
More Noise spectra of various spacecraft and launch vehicle sub systems are required to be simulated in a reverberation chamber to qualify them for acoustic environment. ...
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Safe separation of strap-on boosters from the core of a launch vehicle is an essential design and operational requirement. This important requirement is met by employing...
MoreLast updated on : 29-01-2019 04:12:36pm
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