Mechanical engineering comprises the design, analysis and usage of heat and mechanical power for the operation of machines and mechanical systems.
Branches of mechanical engineering
Aerospace Engineering
Also known as Aeronautical engineering concerns the design, construction, and science of both air and space vehicles, primarily on the systems level. Further concerned with the science of force and physics that are particular only to performance in Earth’s atmosphere and the expanse of space. Acoustical engineering
Concerns the manipulation and control of vibration, especially vibration isolation and the reduction of unwanted sounds Manufacturing engineering
Concerns dealing with different manufacturing practices and the research and development of systems, processes, machines, tools and equipment.
Thermal engineering
Concerns heating or cooling of processes, equipment, or enclosed environments
Vehicle engineering
The design, manufacture and operation of the systems and equipment that propel and control vehicles
Moment (physics)
In physics, the term moment can refer to several different concepts. In principle it is defined as the perpendicular distance from a point to a line or a surface. It is frequently used in combination with other physical quantities such as in moment of inertia, moment of force, moment of momentum, magnetic moment, etc. It is also used colloquially for different physical quantities that depend upon distance. For example, in engineering and kinesiology the term moment is often used to instead of the more complete term moment of force. A moment of force being the product of the moment of a force from an axis times the magnitude of the force, i.e., F × d, where F is the magnitude of the force and d is the moment of the force. See torque for a more complete description of moments of force or couple for the related concept free moment of force also known as a force couple. It may also be used when the distance is squared, as in moment of inertia.
The Essay on Mechanical Engineering Skills Project Systems
I am a friendly, pleasant, active, enthusiastic person who hails from India, one of the fast growing nations, which is known for its cultural, religious, linguistic and ethnic diversity. I am a masters graduate in Mechanical Engineering from IIT Kanpur, one of the India's prestigious and world-renowned institutes. As a masters student I was involved in several research projects of A RDB ( ...
The moment of inertia is the “second moment” of mass of a physical object. This is the object’s resistance or inertia to changes in its angular motion. It is roughly the sum of the squared distances (i.e., moments) of the object’s mass particles about a particular axis Other definitions * The Principle of moments is if an object is balanced then the sum of the clockwise moments about a pivot is equal to the sum of the anticlockwise moments about the same pivot. * A pure moment is a special type of moment of force. See the article couple (mechanics).
* Moment of inertia is analogous to mass in discussions of rotational motion. * Moment of momentum is the rotational analog of linear momentum. * Magnetic moment is a dipole moment measuring the strength and direction of a magnetic source. * Electric dipole moment is a dipole moment measuring the charge difference and direction between two or more charges. For example, the electric dipole moment between a charge of –q and q separated by a distance of d is Resolution of Forces
When the can is immersed in the water, the pressure inside the can is lower than the pressure outside Force on refrigerator acts in 2 directions
Resolution of Forces – Breaking down a single vector into 2 or more vectors
The method of resolving a vector into its components was thoroughly discussed. During that lesson, it was said that any vector that is directed at an angle to the customary coordinate axis can be considered to have two parts – each part being directed along one of the axes – either horizontally or vertically. The parts of the single vector are called components and describe the influence of that single vector in that given direction. One example that was explain here . If the chain is pulled upwards and to the right, then there is a tensional force acting upwards and rightwards upon Fido. That single force can be resolved into two components – one directed upwards and the other directed rightwards. Each component describes the influence of that chain in the given direction.
The Essay on A Lab Report Of Forces Being In Equilibrium
The purpose of this lab was to understand equilibrium. To do this, you must find the equilibrant of the resultant of three vectors, both mathematically and graphically and test the results. Procedure: A) Put the weights necessary for each of the vector forces on each hook. B) Set the wheels of the force table at the proper angles, including the calculated equilibrant. C) When placing the hooks on ...
The vertical component describes the upward influence of the force upon Fido and the horizontal component describes the rightward influence of the force upon Fido. The task of determining the amount of influence of a single vector in a given direction involves the use of trigonometric functions. The use of these functions to determine the components of a single vector was also discussed in Lesson 1 of this unit. Assume that the chain is exerting a 60 N force upon Fido at an angle of 40 degrees above the horizontal. A quick sketch of the situation reveals that to determine the vertical component of force, the sine function can be used and to determine the horizontal component of force, the cosine function can be used. The solution to this problem is shown below.
