Dampers

Dampers Honk-kong

Hongkong H=80 m diameter 8.34 m

Dampers honk-kong

Hongkong H=80 m diameter 8.34 m

41 t Tuned Mass Damper

WORLD RECORD for a 41 t Tuned Mass Damper installed on top of a 180 m concrete chimney suffering heavy vibration due to nearby structure – 5 viscous damper below the moving mass

Detail of 41 t moving mass

WORLD RECORD – detail of 41 t moving mass suspended by 16 pendulums on old cracked concrete of a 180 m concrete chimney, 5 viscous dampers sets placed below moving mass

Liquid damper used as a top platform

Liquid damper used as a top platform on a 100 m double skin steel stack – This stack is equipped of anti down wash system to protected the stack top form smoke plume and acid attack

TMD

TMD based on stainless steel coil No wear withsand temperature from -50°C + 500 °C Acid resistant

Tuned Mass Damper

Tuned Mass Damper (TMD) on top of a single flue stack – Damper set made by cable coils – no wear – maintenance free

Liquid damper

Liquid damper use as a top platform during lifting on top of a 60 m double skin steel stack . Access to top by a manhole in the damper.

LIQUID DAMPER

LIQUID DAMPER to repair a conical 45 m FRP mast -AIR FRANCE

Air France Interne

Multi frequency damper inside the AIF FRANCE mast

Bakou

2 twin double skin steel stack 65 m

TMD with SS cable coils used as damping set

Middle East : TMD with SS cable coils used as damping set - Suspended at stack top by 3 x SS pendulum- maintenance free despite very high smoke temperature, aggressive ambient conditions (acid, sans etc.)

TMD with SS cable coils used as damping set

LIQUID DAMPER

Liquid damper used as a top platform on a 103 m double skin steel stack. Access is done through a hole in the damper

LIQUID DAMPER

Liquid damper done in two parts - used as a top platfomr by adding handrail

LIQUID DAMPER

Repair of a vibrating flare stack by using a liquid damper made of two parts. The damper is protected by a heatshield to prevent the damper and its liquid form heavy radiations

ANTI DOWN WASH SYSTEM

DAMPER as top platform and anti downwash system acting as smoke dissipator

Liquid damper made of two parts

Repair of a vibrating double skin steel stack of 30 m by using a liquid damper made of two parts

TMD and SMOKE DISSIPATOR

Tuned Mass Damper (TMD) on a 40 m steel stack . This damper is based on a viscous damper. The mass and the damping set are inside a container for protection

LIQUID DAMPER

LIQUID DAMPER to repair a slender stack vibrating for first and second mode

TMD

TMD with cable coil damping ste - no wear

LIQUID DAMPER on a 100 m steel stack

Damper

Damper on wind turbin