A mechanical force will be experienced by the conductor and the direction of this force is governed by Fleming's Left Hand Rule. As in a permanent magnet DC motor, the armature is placed inside the magnetic field of permanent magnet; the armature rotates in the direction of the generated force. Here each conductor of the armature experiences the mechanical force F = Magnetic force x Length x Current flowing through the circuit, comes under the magnetic field. Each conductor of the armature experiences a force and the compilation of those forces produces a torque, which tends to rotate the armature. The function of the electromagnet is to switch the polarity of the magnets as the current flows, keeping the motor running.
Fig.5. Displacement Vs Voltage graph in comb drive with fixed-fixed flexure beam Fig.6. Displacement Vs Voltage graph in comb drive with Crab leg flexure beam Fig.7. Displacement Vs Voltage graph in comb drive with double folded flexure beam The capacitance is a function of displacement. So with change in displacement, capacitance changes .
This inductive wheel speed sensor is mounted at a fixed distance from a ferromagnetic rotor with teeth. As the rotor rotates and a tooth comes near to the rod, the magnetic flux in the coil changes. This changes in the magnetic flux which results in a voltage pulse across the fixed coil. The vehicle’s Anti-lock braking system control module counts these voltage pulses and calculates the vehicle’s speed. B. Optical Wheel speed sensor Optical Wheel Sensors which also generates pulses at an frequency which is corresponding to the rotor rotation, but in here instead of detecting magnetic flux in coil, the optical sensors measures either light allowed to pass through slits or reflected light.
once we pull down at any purpose, the dentifrice comes out of the outlet. The force applied has transmitted from one place to a different through the dentifrice, that may be a thick, liquid fluid. This principle is employed within the operation of four-wheeled hydraulic automobile brakes. once the treadle is pushed and also the piston within the hydraulic brake cylinder is forced against the fluid therein cylinder. This push exerts pressure on the fluid because it did on the dentifrice within the tube.
In the preferred embodiment of the present invention, the electronic type brake is employed, and the electric current flowing through this brake is adjusted, so that the velocity of the vertical movement of the spindle sleeve (which is defined to be the ratio of the vertical moving distance to the revolutions of the spindle) can be automatically adjusted. For this purpose, an overall supervising controller in the form of a micro-controller is provided to receive sensed data from a spindle revolution sensing section, a revolution deviation (difference)
Electric power assisted steering (EPAS): Electric power assisted steering is otherwise known as electric power steering. It is the most advanced type of steering system that is used in these modern vehicles. The main purpose of the power steering is to attenuate the driver effort required to steer the vehicles. That is the torque is applied to the steering wheel and it uses an electric motor for the same purpose. Figure 1 : electronic power steering system (crankit.in) Torque sensor The torque sensor is a most important component which is used to measure the effort applied by the driver to steer the vehicle.
In this era of continuous development in the manufacturing sector, design and weight optimization is the prime objective. This objective leads to the research of various metal alloys and composite materials. In automotive industry, the significant increase of the demand for lighter, more fuel efficient vehicles, reduced design-testing iterations, and satisfactory reliability level has promoted this research. The suspension and steering systems are responsible for providing comfort and stability. The performance of both the systems depends on the performance of steering knuckle which is subjected to millions of varying stresses cycles leading to fatigue failure.
For this reason gear is preferred over belt drive where constant velocity ratio is needed especially for precision machine. When friction between two tangentially mating wheels is sufficient the power transmitted is kinematically equivalent with the power transmitted by a pair of gears. For a mating tangential wheel, the driven wheel will rotate as long as driving wheel does not experience frictional force which exceeds
Analytical Study of Field Shaper in Electromagnetic Welding Rajesh.N, Student, Dept. of Mechanical Engineering AMC Engineering college, Bangalore-560083 Email: email@example.com Shanthala K, Research scholar, Dept. of Mechanical Engineering, AMC Engineering college, Bangalore-560083 Email: firstname.lastname@example.org Abstract- Electromagnetic Welding (EMW) is a promising and relatively new manufacturing technology which is advantageous over conventional welding in many ways. EMW is a type of impact joining process which makes use of rapid energy source to accelerate and cause collision between two different metals at very high velocities by removing the layer of oxidation. The important characteristic of this process is non-contact