• Mechanical vibrations that fall in the frequency range that we are capable of hearing are called sound, or sound waves.
• Mechanical vibration is a form of oscillating energy—comprised of forces of specific frequencies that are repeated in a cyclical fashion.
• When this oscillating energy impacts a body (of any kind), it is transferred at the point of impact, causing the back-and-forth or up-and-down motion known as vibration.
• Due to the fact that waves of energy cause vibration, it possesses an amplitude (wave strength) as well as a frequency (number of oscillations of the wave per second). Both of these characteristics must be controlled.
• High pressure mechanical vibration results when the vibration energy has a large amplitude (high strength). As a result, each vibratory impact delivers a high level force. 

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• An impact force is one that, at the point of impact—point of collision between bodies, delivers a shock wave of energy.
• This shock wave of energy, resulting from a high impact delivered over a relatively short time, is responsible for causing injury or damage to the impacted individuals or items.
• Adverse effects, such as damage or injury, occur as the energy of the impact force is transferred to the affected entity from the source of the impacting force.

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• When a high impact force is delivered across a relatively short time period, the result is shock.
• This energy shock wave causes damage or injury to effected items or individuals.
• These undesirable effects result from the transfer of shock energy from the source of the impact to the affected entity.

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• Shock is the result of delivering a relatively high impact force over a short time period.
• This shock wave of energy is responsible for causing injury or damage to the impacted individuals or items.
• Adverse effects, such as damage or injury, occur as the energy of the shock is transferred to the affected entity from the source of the impacting force.
• Damping is the absorption and safe dispersal of energy resulting in a decrease in amplitude (strength) of the energy wave, or a change in frequency. Energy is transformed to safer levels and/or frequencies.

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To avoid or eliminate the discomfort and medical maladies connected with these forces, you must find a shoe insole created with a material that will absorb damaging energy before it can cause pain or serious medical conditions. What is the best shoe insole material? Sorbothane®— the best energy absorbing material on the market—is the best shoe insole material.

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• Shock results when a relatively high impact force is delivered in a short amount of time.
• This shock wave of energy is responsible for causing injury or damage to the individuals or items on the receiving end of the shock wave.
• These adverse effects occur as the energy of the shock is transferred from the source of the impact force to the affected entity.
• Shock’s damaging effects, and how you can resist shock
• The transfer of damaging shock energy that originates from an impact force causes damage and injury.
• Shock will ultimately lead to rework, waste, and downtime.

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Damping can be defined as the dissipation of oscillating energy. Examples of oscillating energy include vibration, noise, and shock waves. Consider the case of vibration—an oscillating energy made up of cyclically repeated forces of specific frequencies. Vibration refers to the up and down or back and forth motion that is caused by the transferred energy originating from these forces. Because it is caused by waves of energy, vibration possesses both a frequency (oscillations—cycles per time unit) and an amplitude (strength). It is important to be able to control both attributes. 

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Impact force, vibration, compressive stress, acoustical shock, and shear force—sources of undesirable energy that can result in injury, damage, and loss, when not properly controlled. As these various types of forces impact your workers, machinery, and products, they transfer energy that causes damage to—sensitive product shipments, employee hearing, and colliding metal machine parts.

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Situations exist all around us in which people, products, and equipment are subjected to impact shock. It is important that you understand shock and are aware of effective shock protection. Impact force is a force that delivers a shock or high impact in a relatively short period of time. It happens when two bodies—of any kind–collide. This collision is the result of one body falling onto, or slamming into, another body. This collision delivers a shock wave, as energy, that is transferred to the impacted body(s). This energy is what actually causes damage and injury. Injury may occur when a carpenter strikes a nail or when a runner’s foot impacts the pavement. Damage may result when metal machine parts slam together or when cases of sensitive electronic devices are jostled around during shipping. For businesses—this unwanted energy is causing injury and damage to your workers, equipment, and products.

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When two bodies (of any kind) collide—impact one another—the exact moment of collision is known as the point of impact. At this point, a shock is delivered by the force of the impact. This impact force will increase with speed and the size of the colliding bodies. The shock, generated by the impact force, is delivered as energy that is transferred to the impacted body(s). This energy is what causes injury and damage to workers, equipment and product. This is, most definitely—unwanted energy.

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