Cause and control of vibration pdf
File Name: cause and control of vibration .zip
- Vibration - Measurement, Control and Standards
- Construction physical ill health risks: Vibration
- Floor Vibration Control
Wide column spans along with the use of high strength material less of which would provide the needed structural integrity tend to make modern composite floors flexible and oscillatory. Human activities walking, running, dancing, etc. Adding damping to the floor system, using tuned mass dampers, is a very effective way of floor vibration control.
HAV is caused by regular exposure to high levels of vibration from hand held tools and equipment. It could also be caused by holding materials in contact with grinding or cutting operations. The vibration transmitted from the tools or materials to the hands and arms could damage sensory nerves, muscles and joints which is called hand arm vibration syndrome HAVS. This is a condition caused by damage to the circulatory system in the hands and fingers as a result of contact with vibrating tools.
Vibration - Measurement, Control and Standards
Order your copy here. Vibration in the workplace affects the body in two distinct ways therefore it is classified as follows:.
Regular exposure to hand-arm vibration can cause a range of conditions known as hand-arm vibration syndrome HAVS which includes vibration white finger and carpal tunnel syndrome. Around five million workers are exposed to hand-arm vibration in the workplace.
Two million of these workers are exposed to levels of vibration where there are clear risks of developing a condition. Hand-arm vibration arises from the use of hand-held power tools and is the cause of significant ill health ie painful and disabling disorders of the blood vessels, nerves, joints and muscles of the hands and arms.
Whole body vibration is caused by habitually driving particular vehicles, and can cause back pain or worsen existing back problems. The Vibration Procedure covers the effects and control of vibration in the workplace. It gives guidance on undertaking a workplace risk assessment, and how employees can reduce exposure to vibration. This is a written procedure which covers the effects and control of vibration in the workplace. A PDF of the procedure is available to download see attached , please use it in conjunction with the attached Toolbox Talk.
Hand-arm vibration is a result of using hand-held power tools, and can be the cause of significant ill health which may take the form of painful disorders of the blood vessels, joints, nerves and muscles of the hands and arms.
The procedures, which cover a wide range of workplace risks and hazards, can be viewed here. Skip to main content. H13 - Vibration At Work. Vibration in the workplace affects the body in two distinct ways therefore it is classified as follows: Hand-arm vibration Whole body vibration. What is this? What are the types of vibration at work?
There are two main types of work-related vibration. They are: Hand-arm vibration; and Whole body vibration. Hand-arm vibration Hand-arm vibration is a result of using hand-held power tools, and can be the cause of significant ill health which may take the form of painful disorders of the blood vessels, joints, nerves and muscles of the hands and arms.
Employees are particularly at risk if they operate: Hammer action tools for more than 15 minutes per day; or Rotary and other action tools for more than one hour per day. Symptoms: Loss of feeling in your fingers; Fingers going white and red during exposure to hot or cold weather; Numbness and tingling in fingers; and Loss of dexterity in hands - inability to get a firm grip of objects.
Symptoms: Aches and pains in upper body; and Stiffness in the lower back. What does the responsible manager need to do? The responsible manager must: Undertake a risk assessment and identify where there might be a risk from vibration and who is likely to be affected. This assessment must be undertaken by a competent person. Endeavour to eliminate the use of all vibrating tools. Reduce the amount of time regular operators spend inside mobile plant.
Introduce adequate control measures to minimise the risk associated with hand-arm and whole body vibration. Install suspended seating within mobile plant to reduce the level of vibration experienced.
Maintain any haul roads to ensure all potholes are filled. Ensure the fragmentation of blasted rock is adequate. This will reduce the necessity for the loading shovel to apply additional force to any fixed pieces of rock.
Provide adequate information, instruction and training to employees on the risks to health in relation to vibration at work. Establish which employees require health surveillance. What can employees do? Employees can: Use suitable low-vibration tools. Select the right tool for the job. Check to see if tools are in good condition and have been properly maintained. Keep cutting tools sharp so they remain efficient. Reduce the amount of time they use one particular tool, and take frequent rest breaks.
Avoid gripping a tool too tightly. Store tools in order that the handles do not become cold overnight. Reduce the amount of time spent driving mobile plant. Operate mobile plant in a controlled fashion. Keep to traffic routes and adhere to site speed limits. Follow the guidance given to them by their employer. Report any concerns to their employer immediately.
Legislation Health and Safety at Work etc. Share this page.
Construction physical ill health risks: Vibration
Beta This is a new way of showing guidance - your feedback will help us improve it. This page tells you how to control these risks and why. More detailed information is available on the main HSE vibration page. The Control of Vibration at Work Regulations says you must prevent or reduce risks from exposure to vibration at work. Follow the Assess, Control and Review model. Pay particular attention to:.
causing fuel feed problems; (3) a rough mad. (source) shaking a car driver (responder). In practice one source may vibrate many responders, and equally one.
Floor Vibration Control
Order your copy here. Vibration in the workplace affects the body in two distinct ways therefore it is classified as follows:. Regular exposure to hand-arm vibration can cause a range of conditions known as hand-arm vibration syndrome HAVS which includes vibration white finger and carpal tunnel syndrome.
Easy-to-read, question-and-answer fact sheets covering a wide range of workplace health and safety topics, from hazards to diseases to ergonomics to workplace promotion. Download the free OSH Answers app. Search all fact sheets:. We can feel vibrations and know that people might be exposed to it. But we cannot determine if what we feel is going to be harmful.
What you must do
This article examines the causes of electrical machine vibration, the effects of vibration, and means taken to mitigate vibration. All rotating machines, no matter how well designed and manufactured, exhibit vibration of some form when operating. Excessive vibration can cause damage to the machine or reduce its lifetime, as well as damage to other items. The rotating machines concerned are electric motors and alternator-turbine combinations. Fixed speed machines such as alternators and synchronous motors lend themselves to relatively simple analysis and problem solution.
Он подумал было попросить пилота радировать Стратмору, чтобы тот передал его послание Сьюзан, но не решился впутывать заместителя директора в их личные дела. Сам он трижды пытался связаться со Сьюзан - сначала с мобильника в самолете, но тот почему-то не работал, затем из автомата в аэропорту и еще раз - из морга. Сьюзан не было дома. Он не мог понять, куда она подевалась. Всякий раз включался автоответчик, но Дэвид молчал.
То же самое будет и со мной, - подумала. Сьюзан вспомнила о единственном остающемся выходе - личном лифте Стратмора.