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Dynamic balance is the branch of mechanics that is concerned with the effects of forces on the motion of a body or system of bodies, especially of forces that do not originate within the system itself, which is also called kinetics. [1] [2] [3] Dynamic balance is the ability of an object to balance while in motion or switching between positions.
Dynamic balancing was formerly the province of expensive equipment, but users with just occasional need to quench running vibrations may use the built in accelerometers of a smart phone and a spectrum analysis application. See ref 3 for example. A less tedious means of achieving dynamic balance requires just four measurements.
Two-plane, or dynamic, balancing is necessary if the out-of-balance couple at speed needs to be balanced. The second plane used is in the opposite wheel. Two-plane, or dynamic, balancing of a locomotive wheel set is known as cross-balancing. [11] Cross-balancing was not recommended by the American Railway Association until 1931.
In 2014, art critic Robert C. Morgan declared Dynamism of a Dog on a Leash, along with Gino Severini's paintings Blue Dancer and Dynamic Hieroglyphic of the Bal Tabarin, to be "probably the most elegant and accurate works ever painted in the Futurist tradition." He credits these works with "moving status into kinesis, stillness into motion, and ...
When he first showed these figures at fairs and art exhibitions, he invited people up to the cubic shapes to press the switch and start the color and light show. Virtual movement is a style of kinetic art that can be associated with mobiles, but from this style of movement there are two more specific distinctions of kinetic art.
A static balance (sometimes called a force balance [2] [3]) occurs when the inertial axis of a rotating mass is displaced from and parallel to the axis of rotation.Static unbalances can occur more frequently in disk-shaped rotors because the thin geometric profile of the disk allows for an uneven distribution of mass with an inertial axis that is nearly parallel to the axis of rotation.
Tire balance is measured in factories and repair shops by two methods: with static balancers and with dynamic balancers. Tires with large unbalances are downgraded or rejected. When tires are fitted to wheels at the point of sale, they are measured again on a balancing machine , and correction weights are applied to counteract their combined ...
Alexander Calder, Red Mobile, 1956, Painted sheet metal and metal rods, a signature work by Calder – Montreal Museum of Fine Arts. A mobile (UK: / ˈ m oʊ b aɪ l /, [1] US: / ˈ m oʊ b iː l /) [2] is a type of kinetic sculpture constructed to take advantage of the principle of equilibrium. It consists of a number of rods, from which ...