RESTON®STU Shock Transmission Unit

RESTON®STU Shock Transmission Unit

從自動化關鍵零組件的單軸模組,傳動元件,運動控制卡,軟體研發,到自動化設備應用規劃及研發客制,如產業機器人,機器手臂,PCB切割機,SMT制程設備,LED/半導體制程設備,光通訊設備,自動光學檢測AOI設備和椿科技提供一貫且完整的解決方案。

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RESTON®STU Shock Transmission Unit

mageba-RESTON®-STU
震動傳輸裝置 RESTON STU 震動傳輸裝置 RESTON STU 震動傳輸裝置 RESTON STU
震動傳輸裝置 RESTON STU
震動傳輸裝置 RESTON STU
震動傳輸裝置 RESTON STU
Product
Product

RESTON®STU Shock Transmission Unit
prevention, protection, control

Characteristics & dimensions

Principle
mageba RESTON®STU shock transmission units consist of a piston, a piston rod and a cylinder pipe. They are temporary (dynamic) connecting devices allowing free movements during service conditions while locking up during a shock loading from an earthquake or due to traffic/train braking. In such case they transmit the forces to the connected elements. Shock transmission units – also known as lock-up devices – work on the principle that the rapid passage of a viscous fluid through a narrow gap, orifice or port generates high resistance, while slow passage at low velocity generates only minor resistance. Consequently, RESTON®STU devices lock-up during a quick motion, while delivering a very small reaction force caused by friction during slow displacements such as from thermal expansion or contraction.


Properties
RESTON®STU shock transmission units do not dissipate energy and consequently there is no reduction of the load impacts. However, by locking up in certain extraordinary events, the RESTON®STU devices temporarily change the static system of a structure, e.g. from simply supported to continuously supported elements. The main purpose is to control the load distribution and to share the forces with several structural elements. In addition, RESTON®STU devices avoid large movements of the structural elements such as bridge decks in case of sudden load impacts. RESTON®STU devices are frequently applied in combination with seismic isolators such as mageba LASTO®LRB lead rubber bearings, LASTO®HDRB high damping rubber bearings or RESTON®PENDULUM isolators in order to control the forces and to
minimize the movements of structures.

Main dimensions
The table below summarizes the main dimensions of the standard type devices. Values for other sets of input parameters can be provided upon request.