Stresses Analysis of a Flywheel A classical approach to find out Deflection and Stresses in flywheel consist of following steps: Making a 3-D Model of Flywheel: First, we must make a model of Flywheel using Design software’s like CAD . and transfer it to ANSYS. Geometric Description: Now we have to describe the parameters: Outer-diameter (Do) Number of Spokes (N) Diameter of Spokes (d) Density (ρ) Speed (s) Stresses in Rimmed flywheel: A Rimmed flywheel consist of: Rim in which mass of the flywheel is concentrated. Hub for mounting Flywheel on the shaft. No.
Since the angle of a propeller blade varies along its length, a particular blade station must be chosen to specify the pitch of a blade. Rather than using blade angles at a reference station, some propeller manufacturers express pitch in inches at 75% of the radius. This is the geometric pitch, or the distance this particular element would move forward in one revolution along a helix, or spiral, equal to its blade
Mathematically, a rotor is claimed to be in dynamic balance if the algebraic sum of centrifugal forces is definitely zero as well as the algebraic sum of centrifugal couples is also equal to zero. Mathematically, It can be written as; ∑▒mr=0 .................................(i) (Force balance) and ∑▒mrl=0 ................................(ii) (Couple balance) For a system to become dynamically balanced, it entails not less than two balancing masses rotating in several planes while two equations of equilibrium need to be satisfied. BENEFIT OF BALANCING
These systems have 3-4 blades. The horizontal is responsible for the up and down movement of blade. The name of this movement is flapping and is designed to compensate for dissymmetry of lift. The flapping hinge can be located at varying distance from the rotor hub and there may be more then on hinge. There is one vertical hinge also known as lead-lag or drag hinge which allows the blade to move back and forth.
It rotates at 2,001 rpm when the main rotor turns at 353.2 rpm. Its direction of rotation is clockwise when viewed from behind. The tail rotor blades consist of two bonded light alloy metal sheets with stainless steel leading edge protection. They are individually articulated relative to the hub, in the flapping plane, and are connected to a collective-pitch control system. The tail rotor is driven through a torque shaft connected at the front end to the main gearbox, and at the rear, to the tail rotor gearbox.
Mechanical or physically worked flight control frameworks are the most essential system for controlling a flying machine. They were utilized as a part of right on time airplane and are presently utilized as a part of little air ship where the air motion facilitating powers are not exorbitant. A manual flight control framework utilizes a gathering of mechanical parts, for example, pushrods, pressure links, pulleys, stabilizers, and here and there fastens to transmit the strengths connected to the cockpit controls specifically to the control surfaces. In light flying machine the control surfaces are moved by the force of the pilot's muscles. Each one control surface is joined straightforwardly to the control section or rudder pedals with an arrangement
There is also more questions to be asked about this lab, would the width of the helicopter blade matter? Would the type of paper we use change the results? The sources for the information are No, Name. “Dispersal of Seeds by Animals.” Dispersal of Seeds by Animals, 5 June 2013, theseedsite.co.uk/sdanimal.html. and The University of, Waikato.
Good compressor performance which directly improves the combustion process thereby increasing turbine inlet temperature. Compressor blade performance depends on Tip clearance, Stagger gap, Stage loading, Diffusion factor and flow coefficient. Hence improving compressor blade design is significant for better efficiency of engine. Objective The main objective of this project is to: 1. To introduce optimum design for improved performance of the compressor.
INTRODUCTION Aerodynamics is the study of how gases interact with moving bodies. Because the gas that we encounter most is air, aerodynamics is primarily concerned with the forces of drag and lift, which are caused by air passing over and around solid bodies. Engineers apply the principles of aerodynamics to the designs of many different things, including buildings, bridges and even soccer balls; however, of primary concern is the aerodynamics of aircraft and automobiles. THE BASIC FORCES OF THRUST,DRAG AND LIFT There are three basic forces to be considered in aerodynamics: thrust, which moves an airplane forward; drag, which holds it back; and lift, which keeps it airborne. Lift is generally explained by three theories: Bernoulli 's principle, the Coanda effect, and Newton 's third law of motion.
The chain length was calculated to be 90 pitches. System-level diagram: Functional analysis: The rotors: These are the main mixing elements of the machine and are responsible for the mixing of the raw material which happens between the blades. The shape of these ‘wings’ is very important to ensure smooth fluid flow through the machine. An optimal length to diameter ratio helps mix more efficiently. Mixing quality is also greatly influenced by the speed of the rotors, too fast and the fluid will develop cavities, too slow and the mixing process will be too inefficient.