# data[].attributes.body
The United States Army Corps of Engineers is a federal agency under the Department of Defense that primarily oversees dams, canals and flood protection in the United States, as well as a wide range of public works throughout the world

# data[].attributes.body
A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements usually forming triangular units. The connected elements (typically straight) may be stressed from tension, compression, or sometimes both in response to dynamic loads.

Descendant: Cantilever bridge, truss arch brid...

Ancestor: Beam bridge

Movable: May be movable – see movable brid...

Material: Timber, iron, steel, reinforced concrete

# data[].attributes.body
In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". A "two-force member" is a structural component where force is applied to only two points.

# data[].attributes.body
A total station is an electronic/optical instrument used in modern surveying and building construction that uses electronic transit theodolite in conjunction with electronic distance meter (EDM). ... The instrument is used to measure sloping distance of object to the instrument, horizontal angles and vertical angles.

# data[].attributes.body
A total station (TS) or total station theodolite (TST) is an electronic/optical instrument used for surveying and building construction. ... Robotic or motorized total stations allow the operator to control the instrument from a distance via remote control.

# data[].attributes.body
Torsion occurs when an object, such as a bar with a cylindrical or square cross section (as shown in the figure), is twisted. The twisting force acting on the object is known as torque, and the resulting stress is known as Shear stress.

# data[].attributes.body
A tie, strap, tie rod, eyebar, guy-wire, suspension cables, or wire ropes, are examples of linear structural components designed to resist tension. It is the opposite of a strut or column, which is designed to resist compression. Ties may be made of any tension resisting material.

# data[].attributes.body
Tension. It is defined as the pulling force exerted by the mode of a cable, chain, rope, and so forth. The opposite of compression is called tension; the objects are pulled one dimensionally or three dimensionally. ... Check the figure of an object and draw the pulling forces diagram wherever it is required.

# data[].attributes.body
A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. The basic structural components of a suspension bridge system include stiffening girders/trusses, the main suspension cables, main towers, and the anchorages for the cables at each end of the bridge.

# data[].attributes.body
A strut is a structural component commonly found in engineering, aeronautics, architecture and anatomy. Struts generally work by resisting longitudinal compression, but they may also serve in tension.

# data[].attributes.body
A structure is a series of connected, interrelated elements that form together a system that can resist a series of external load effects applied to it, which includes its own self weight, and provide adequate rigidity. In civil engineering, a structure is usually made up of, Beams.

# data[].attributes.body
Frame. It is defined as the engineering structure of different shapes like curved or straight. It contains one multi-force member. The frame structure is the combination of beams, column, and slab. ... Rigid structural frame refers to the frames which are capable in resisting the deformation.

# data[].attributes.body
Structural analysis is the determination of the effects of loads on physical structures and their components. Structures subject to this type of analysis include all that must withstand loads, such as buildings, bridges, vehicles, furniture, attire, soil strata, prostheses and biological tissue.

# data[].attributes.body
Statics is the study of methods for quantifying the forces between bodies. ... Statics is an essential prerequisite for many branches of engineering, such as mechanical, civil, aeronautical, and bioengineering, which address the various consequences of forces.

# data[].attributes.body
Static loading is a load that doesn't change over time. In engineering, static loads tend to be better defined and require less of a safety factor on them then dynamic loading. ... For instance, a static load on an overhead crane would be the weight of the structure, block, etc., because those never change.

# data[].attributes.body
In engineering, shear strength is the strength of a material or component against the type of yield or structural failure when the material or component fails in shear. A shear load is a force that tends to produce a sliding failure on a material along a plane that is parallel to the direction of the force.

# data[].attributes.body
Highway engineering is an engineering discipline branching from civil engineering that involves the planning, design, construction, operation, and maintenance of roads, bridges, and tunnels to ensure safe and effective transportation of people and goods

# data[].attributes.body
Piers. Generally, a pier may be defined as a vertical, column-like engineering structure on land as well as in open water, whose purpose is to transmit safely structural load onto a deep-lying, firm, and load-bearing stratum of soil or rock covered by soft soil materials. ... Piers are prismatic or cylindrical columns.

# data[].attributes.body
Construction Loads are defined as, loads imposed on a completed or temporary structure during and as a result of the construction process.

# data[].attributes.body
A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. ... Most mechanical joints are designed to allow relative movement of these mechanical parts of the machine in one degree of freedom, and restrict movement in one or more others.

# data[].attributes.body
Geomatics Engineering is the management of global infrastructure through the collection, measuring, monitoring and archiving of geospatial data. Geomatics engineers contribute to the welfare and safety of the public through administering appropriate research and advanced mapping techniques.

# data[].attributes.body
In physics and engineering, a free body diagram (force diagram, or FBD) is a graphical illustration used to visualize the applied forces, moments, and resulting reactions on a body in a given condition.

# data[].attributes.body
A joist is a horizontal structural member used in framing to span an open space, often between beams that subsequently transfer loads to vertical members. When incorporated into a floor framing system, joists serve to provide stiffness to the subfloor sheathing, allowing it to function as a horizontal diaphragm.

# data[].attributes.body
Electronic distance measurement (EDM) is a method of determining the length between two points, using phase changes, that occur as electromagnetic energy waves travels from one end of the line to the other end.

# data[].attributes.body
Electronic distance measurement (EDM) is a method of determining the length between two points, using phase changes, that occur as electromagnetic energy waves travels from one end of the line to the other end.

# data[].attributes.body
Electronic Distance Measurement. Electronic distance measurement (EDM) is a method of determining the length between two points using electromagnetic waves. ... Each piece of EDM equipment available at Engineer Supply provides dependably accurate distance measurements displayed on an easy-to-read digital screen.

# data[].attributes.body
dynamics in Mechanical Engineering

Dynamics is the study of how moving objects behave. Dynamics is the part of mechanics that studies movement and its causes. The study of the causes of motion and changes in motion is known as dynamics.

# data[].attributes.body
Dynamic loads include people, wind, waves, traffic, earthquakes, and blasts. Any structure can be subjected to dynamic loading. ... A static load is one which varies very slowly. A dynamic load is one which changes with time fairly quickly in comparison to the structure's natural frequency.

# data[].attributes.body
The meaning of compression in engineering is all about forces of compression. A compression force is defined as the force generating by compressing or squeezing the object. When objects are compressed, shear forces comes into action which indicates compression forces.

# data[].attributes.body
A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. ... For the purpose of wind or earthquake engineering, columns may be designed to resist lateral forces.

# data[].attributes.body
Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including public works such as roads, bridges, canals, dams, airports, sewerage systems, pipelines, structural components of buildings, and railways.

# data[].attributes.body
the central, innermost, or most essential part of anything. Also called magnetic core. Electricity. the piece of iron, bundle of iron wires, or other ferrous material forming the central or inner portion in an electromagnet, induction coil, transformer, or the like.

# data[].attributes.body
A cantilever is a rigid structural element, such as a beam or a plate, anchored at one end to a support from which it protrudes; this connection could also be perpendicular to a flat, vertical surface such as a wall. Cantilevers can also be constructed with trusses or slabs

# data[].attributes.body
Brace. (in structural engineering), a connecting element that ensures the stability of a main (supporting) member of the frame and contributes to the three-dimensional rigidity of the structure as a whole. ... Braces are used most often in steel and wood structures.

# data[].attributes.body
In engineering mechanics, bending characterizes the behavior of a slender structural element subjected to an external load applied perpendicularly to a longitudinal axis of the element. ... In the absence of a qualifier, the term bending is ambiguous because bending can occur locally in all objects.

# data[].attributes.body
Beam bridges, also known as stringer bridges, are the simplest structural forms for bridge spans supported by an abutment or pier at each end. ... Bridges designed for modern infrastructure will usually be constructed of steel or reinforced concrete, or a combination of both.

Descendant: Box girder bridge, Plate girder bri...

Material: Timber, iron, steel, reinforced concrete, ...

Ancestor: Log bridge

Falsework required: No unless cast-in-place re...

# data[].attributes.body
A beam is a structural element that primarily resists loads applied laterally to the beam's axis. Its mode of deflection is primarily by bending. The loads applied to the beam result in reaction forces at the beam's support points.

# data[].attributes.body
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side.

Span range: short, but often set end-to-end to f...

Descendant: Truss arch bridge, moon bridge ...

Material: masonry, concrete, wrought iron, cast ...

Ancestor: Clapper bridge

# data[].attributes.body
In engineering, abutment refers to the substructure at the ends of a bridge span or dam whereon the structure's superstructure rests or contacts. ... The term may also refer to the structure supporting one side of an arch, or masonry used to resist the lateral forces of a vault.

# data[].attributes.body
verb (used without object)

(of a rocket or guided missile) to deviate from a stable flight attitude by oscillation of the longitudinal axis in the horizontal plane.

# data[].attributes.body
wind turbine in Mechanical Engineering

A wind turbine is a type of electric power generator, in which a shaft is made to rotate by the flow of wind over a propeller. Wind turbines convert wind energy to electricity. Large, modern wind turbines operate together in wind farms to produce electricity for utilities.

# data[].attributes.body
thrust in Mechanical Engineering

Thrust is pressure that is exerted continuously by one object against another, especially the axial force by or on a shaft.

# data[].attributes.body
Career Definition of a Satellite Engineer

Satellite engineers design programs that direct orbiting satellites and keep them functioning properly. ... Satellite engineers are primarily employed by defense contractors and aerospace companies.

# data[].attributes.body
A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, aircraft, or other conveyance that moves through a fluid medium (generally air or water). ... In basic form, arudder is a flat plane or sheet of material attached with hinges to the craft's stern, tail, or after end.

# data[].attributes.body
Systems engineering is an interdisciplinary field of engineering and engineering management that focuses on how to design and manage complex systems over their life cycles. At its core, systems engineering utilizes systems thinking principles to organize this body of knowledge.

# data[].attributes.body
A propulsion system consists of a source of mechanical power, and a propulsor (means of converting this power into propulsive force). A technological system uses anengine or motor as the power source (commonly called a powerplant), and wheels and axles, propellers, or a propulsive nozzle to generate the force.

# data[].attributes.body
A propeller is a device which provides thrust for propulsion of a vehicle such as an airplane, ship, or submarine though a fluid such as water or air, by rotating two or more twisted blades about a central shaft, in a manner analogous to rotating a screw though a solid.

# data[].attributes.body
Pitch is defined as the axial distance between adjacent threads on a helix or screw. In most screws, called "single start" screws, which have a single helical thread along their length, the lead and pitch are equal.

# data[].attributes.body
Lift is defined as the component of the aerodynamic force that is perpendicular to the flow direction, and drag is the component that is parallel to the flow direction.

# data[].attributes.body
gas turbine in Mechanical Engineering

A gas turbine is a type of engine in which a shaft is made to rotate by burning gasmoving past arrays of blades arranged in circles. Gas turbines are used to propel aircraft and ships. In a gas turbine, a pressurized gas spins the turbine.

# data[].attributes.body
Flaps are a kind of high-lift device used to increase the lift of an aircraft wing at a given airspeed. ... Extending the wing flaps increases the camber or curvature of the wing, raising the maximum lift coefficient or the upper limit to the lift a wing can generate.

# data[].attributes.body
“An elevator or lift is a transport device used to move goods or people vertically, from one floor to another”. ... Hydraulic lift use the principles of hydraulics pressurize on an above ground or in-ground piston to raise and lower the weight.

# data[].attributes.body
Drag. fluid mechanics. Alternative Title: drag force. Drag, force exerted by a fluid stream on any obstacle in its path or felt by an object moving through a fluid. Its magnitude and how it may be reduced are important to designers of moving vehicles, ships, suspension bridges, cooling towers, and other structures.

# data[].attributes.body
A dihedral angle is the angle between two intersecting planes. In chemistry it is the angle between planes through two sets of three atoms, having two atoms in common. In solid geometry it is defined as the union of a line and two half-planes that have this line as a common edge.

# data[].attributes.body
Bernoulli's equation states that a higher velocity produces a lower pressure, so the low pressure over the upper surface of the aerofoil produces the lift. ... It also neglects the bottom surface of the wing, suggesting that enough lift will be produced regardless of the shape of the lower section of the aerofoil.

# data[].attributes.body
the science and technology of human space travel and exploration.

# data[].attributes.body
The angle at which the light enters is called the angle of incidence. The angle of incidence can be definedas the angle between the oncoming ray of light and the normal vector of the surface of the material it is coming into contact with.

# data[].attributes.body
Definition. The Angle of Attack is the angle at which relative wind meets an Aerofoil. It is the angle formed by the Chord of the aerofoil and the direction of the relative wind or the vector representing the relative motion between the aircraft and the atmosphere.

# data[].attributes.body
a hinged surface in the trailing edge of an airplane wing, used to control lateral balance.

# data[].attributes.body
Aerospace engineering is the primary field ofengineering concerned with the development of aircraft and spacecraft. It has two major and overlapping branches: aeronautical engineering and astronautical engineering. Avionics engineering is similar, but deals with the electronics side ofaerospace engineering.

# data[].attributes.body
the science or practice of travel through the air.

# data[].attributes.body
the study of the properties of moving air and the interaction between the air and solid bodies moving through it.

# data[].attributes.body
Power System. Definition: The power system is a network which consists generation, distribution and transmission system. It uses the form of energy (like coal and diesel) and converts it into electrical energy.

# data[].attributes.body
Power engineering, also called power systems engineering, is a subfield of electrical engineering that deals with the generation, transmission, distribution and utilization of electric power, and the electrical apparatus connected to such systems.

# data[].attributes.body
Potential Energy is defined as the stored energy possessed by a system as a result of the relative positions of the components of that system. From: Condensed Encyclopedia of Polymer Engineering

# data[].attributes.body
Pneumatic systems are systems that use gas or pressurized air to move cylinders, motors or other mechanical parts. Pneumatics applications are relevant to a wide variety of industries, including construction, healthcare, mining, the automotive industry and many others.

# data[].attributes.body
Pascal's law — developed by French mathematician Blaise Pascal — states that when there is an increase in pressure at any point in a confined fluid, there is an equal increase at every other point in the container. Definition of pressure: ... An important application of Pascal's lawis the hydraulic press.

# data[].attributes.body
Mechanical engineering is the discipline that appliesengineering physics, engineering mathematics, and materials science principles to design, analyze, manufacture, and maintain mechanical systems. ... It is the branch of engineering that involves the design, production, and operation of machinery.

# data[].attributes.body
A simple machine is a device that uses leverage to magnify force. In other words, they make doing work easier. The efficiency of these machines is determined by calculating their mechanical advantage. Mechanical advantage is a measure of the force amplification attained by the machine.

# data[].attributes.body
Linear motion (also called rectilinear motion) is a one-dimensional motion along a straight line, and can therefore be described mathematically using only one spatial dimension.

# data[].attributes.body
A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. ... It is one of the six simple machines identified by Renaissance scientists. A leveramplifies an input force to provide a greater output force, which is said to provide leverage.

# data[].attributes.body
Kinetic energy is the energy an object has because of its motion. ... After work has been done, energy has been transferred to the object, and the object will be moving with a new constant speed. The energytransferred is known as kinetic energy, and it depends on the mass and speed achieved.

# data[].attributes.body
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done. There are many different standards and types of horsepower. ... The term was adopted in the late 18th century by Scottishengineer James Watt to compare the output of steam engines with the power of draft horses.

# data[].attributes.body
A hydraulic system is a drive technology where a fluid is used to move the energy from e.g. an electric motor to an actuator, such as a hydraulic cylinder.

# data[].attributes.body
In mechanical engineering, a gear ratio is a direct measure of the ratio of the rotational speeds of two or more interlocking gears.

# data[].attributes.body
Friction is the force that opposes the relative motion or tendency of such motion of two surfaces in contact. It is not, however, a fundamental force, as it originates from the electromagnetic forces between atoms. Friction between solid objects and gases or liquids is called fluid friction.

# data[].attributes.body
Force - Any action applied to an object which would cause the object to move, change the way it is currently moving, or change its shape. A force can also be thought of as a push (compressive force) or pull (tensile force) acting on an object. ... Pressure - An external force applied over some area.

# data[].attributes.body
A bearing is a machine element that constrains relative motion and reduces friction between moving parts to only the desired motion.

# data[].attributes.body
An actuator is a component of a machine that is responsible for moving and controlling a mechanism or system, for example by opening a valve. In simple terms, it is a "mover". An actuator requires a control signal and a source of energy.

# data[].attributes.body
An actuator is a component of a machine that is responsible for moving and controlling a mechanism or system, for example by opening a valve. In simple terms, it is a "mover". An actuator requires a control signal and a source of energy.

# data[].attributes.body
In 3D computer graphics, 3D modeling is the process of developing a mathematical representation of any surface of an object (either inanimate or living) in three dimensions via specialized software.

# data[].attributes.body
The basics of mechanical drafting begin with understanding the concept of orthographic projection.

# data[].attributes.body
the formation of ideas or concepts.

# data[].attributes.body
An engineering notebook is intended to capture vital details of the engineering process, and is an ongoing record of a project.

# data[].attributes.body
Engineering design is the method that engineers use to identify and solve problems.

# data[].attributes.body
Detail drawing. Detail drawings provide a detailed description of the geometric form of a part of an object such as a building, bridge, tunnel, machine, plant, and so on. They tend to be large-scaledrawings that show in detail parts that may be included in less detailon general arrangement drawings.

# data[].attributes.body
A Design brief is a document for a design project developed by a person or team (the designer or designteam) in consultation with the client. They outline the deliverables and scope of the project including any products or works (function and aesthetics), timing and budget.

# data[].attributes.body
Computer numerical control (CNC) is a method for automating control of machine tools through the use of software embedded in a microcomputer attached to the tool.

# data[].attributes.body
Computer Aided Design (CAD) is the use of computer software to facilitate the generation, modification, and optimization of a part or a compilation of parts

# data[].attributes.body
computer simulation is the reproduction of the behavior of a system using a computer to simulate the outcomes of a mathematical model associated with said system.

# data[].attributes.body
To do this, engineers often use a technique called brainstorming.brainstorming is a team creativity activity that helps you generate a large number of potential solutions to a problem or challenge.

# data[].attributes.body
societal impact is the effect an organization's actions have on the well being of the community.

# data[].attributes.body
risk analysis is the science of risks and their probability and evaluation.

# data[].attributes.body
an individual, who has fulfilled education and experience requirements and passed rigorous exams that, under State licensure laws, permits them to offer engineer services directly to the public.

# data[].attributes.body
Costs or effects that improve to people or the environment

# data[].attributes.body
A patent engineer is a patent professional who is typically involved in preparing and prosecuting patent applications.

# data[].attributes.body
green architecture, or green design, is an approach to building that minimizes the harmful effects of construction projects on human health and the environment.

# data[].attributes.body
moral principles that govern a person's behavior or the conducting of an activity.

# data[].attributes.body
Possible adverse effects caused by a development, industrial, or infrastructural project or by the release of a substance in the environment.

# data[].attributes.body
A macroeconomic effect on commerce, employment, or incomes produced by a decision, event, or policy.