vibration

vibration

 Reflect the oscillations of Concussion (oscillations) generated by the machine and hardware and felt by the human.

:Such vibrations can affect

 at the hands of a worker only: When the vibration enters the body through the hands (lathes - cyclones - ...) when any

 Vibrating machine or piece occupied only factor, however,

 over the entire body Group: This occurs when the factor is based on shaky ground (Kmqad issued on machine vibration, such as mechanisms of all kinds - work by some hydraulic machines Kalmtariq)

Direction and measurement of vibration

Vibration displacements may occur in three directions and rotation in three directions. People sitting

Valazahh expressed by pivotal displacement X (front and back), Y offset and side effects, Z vertical displacement.

Methods of prevention of vibrations

  technological methods and the use of machines from which a vibration.

 replacement of heavy machinery shaker with another light
.

 get rid of the factors that help to increase vulnerability to cold, such as vibrations.

 Training of employees to take appropriate and comfortable position when performing the work to provide them with the necessary personal protective equipment.

 the organization of work periods not to exceed the vibrations of worker exposure to more than (20-30%) of the working time per patrol
.

 take care not to infringe the physical properties of vibration limits where a record is exposure to more than 30 in the second jolt over the safe limits.

 medical examinations of initial and periodic for employees, with the necessity of taking into account the barriers in some medical personnel to work on the machines shaker.

Finally, to reduce vibrations on machines installed so that the rules do not allow the pipette vibration or displacement due to vibration Allalh (rubber, rubber metal composite)