The members forming the mechanisms and machines are connected together through Kinematic Joints. The properties of joints such as relative motion and degrees of freedom determine the working of a machine. This article includes examples of different types of Kinematic Joints.
Machine and Mechanism Design
From wind mills and steam engines and motors and turbines, mechanical engineers have been designing mechanical tools to make life easier since the beginning of time. Learn more about machine design including how mechanical engineers build a product from the design to finished work. We’ll explore combustion engines, common tools engineers use while building, and much more!
Machines as simple as livers, machines such as James Watt’s steam engine and the industrial robots such as PUMA all are composed of mechanisms whether simple, complex or combination of many simple and complex mechanisms. These mechanisms are governed by Kinematics – the study of geometry and motion.
This article briefly describes about the importance of Vibration in the field of engineering. Vibration tends to have plenty of advantages and a lot more disadvantages, stirring up engineers worldwide to put a lot effort to use its advantages and curtail it disadvantages.
Wankel is a term for rotary engine, being type of internal combustion engine. Engine parts, assembly and work cycle have been described in the article “The Wankel Engine – Part I”. Its advantages were covered in “The Wankel – PART II”. In this article we deal with engine main drawbacks and problems.
The Wankel Engine is a special internal combustion engine, not largely known. After explaining the idea behind the engine and its main parts, we deal with engine common – yet unique – advantages.
The influence of fossil fuels can never be overemphasized on human civilization. From power plants to automobiles, lubricants to paints and synthetic yarns to cosmetics, petroleum products are used everywhere. A journey of oil and natural gas industry, from exploration to production of Hydrocarbons.
Petrol or gasoline is used as fuel in spark ignition (SI) engines. Gasoline is a hydrocarbon with different chemical compositions. Here are the properties that a gasoline should possess to qualify for being used as fuel in SI engines.
The fuel used in a compression ignition (CI) engine is diesel, which is a type of hydrocarbon. For hydrocarbons to qualify as a fuel for the engine, they should possess certain qualities.
In spark ignition (SI) engines, petrol or gasoline is used as fuel, while in compression ignition (CI) engines, diesel is used as fuel. Petrol engines are lightweight and achieve higher speed. Diesel engines, on the other hand, are heavy engines and achieve lesser speeds. Other differences below:
In four-stroke engines the cycle of operations is completed in four strokes of the piston inside the cylinder. In two-stroke engines the cycle of operations is completed in two-strokes of the engine. Here are more differences between four-stroke and two-stroke Internal Combustion (IC) engines.
In two-stroke engines, the cycle of operations of the engine are completed by two strokes of the piston inside the cylinder. Two-stroke petrol engines and diesel engines work in the same way. The cycle of operation of two-stroke engines will be further described.
Two-stroke engines have certain advantages. They produce more power and more compact than the four-stroke engine, and they are lightweight and less costly. On the other hand, some fuel gets wasted in a two-stroke engine, decreasing its efficiency.
In a four-stroke spark ignition (SI) engine the cycle of operations of the engine are completed in strokes of the piston inside the cylinder. The four strokes of the piston are: suction, compression, expansion or power, and exhaust. Each stroke will be described in detail.
The cycle of operations of the four-stroke compression ignition (CI) engine are completed in four strokes of the piston inside the cylinder. These four-strokes are: suction, compression, expansion or power, and exhaust. During these four strokes two revolutions of the crankshaft are produced.
Almost all people use vehicles, but they are not aware of the meaning of general terms related to the engine. This articles defines some of the popular terms related to the vehicle’s engine.
The Spark Ignition (SI) engines work on the principle of cycle of operations invented by Nicolaus A. Otto in the year 1876. The Compression Ignition (CI) engines work on the principle founded by Rudolf Diesel in the year 1892.
There are two main types of IC engines: spark ignition (SI) engines (petrol or gasoline engine) and compression ignition (CI) or diesel engine. Both these engines are further classified as 2-stroke and 4-stroke engine.
What do you do when you want to filter some impurities from the oil in your can which, over the course of time, may be caused by soil, dust, water or other immiscible materials? You may over-simplify by using a sieve filter but see how large quantities of oil are purified.
One great option after completing graduation in Mechanical Engineering is becoming a CNC programmer. As a CNC programmer you write programs for various machining operations and also do planning for production of various components.
Mechanical engineering is a very vast field and encompasses various aspects and subfields including but not limited to power generation, manufacturing, transportation and so forth. Read on to find out more about this exciting and vibrant field of engineering.