A framework of virtual prototyping environment for the design and analysis of mechanical mechanism with clearance

Dynamic analysis of the reheat-stop-valve mechanism with revolute clearance joint in consideration of thermal effect

“…In working condition, the thermal load induced by the high temperature steam induces a temperature gradient along the length of the valve shaft and bush with a maximum temperature of more than 500°C [21]. This gradient is accompanied by differential expansions, which causes thermo-mechanical stresses greater than the stresses due to the pressure of the steam.…”

“…According to the composite thermal displacement and the practical abrasion measure of the valve shaft and the bush [21], the constants C 1 , C 2 and C 3 can be evaluated in terms of e as…”

“…Their inadequacies in representing overall influence may present problems during engineer design or analysis process. A virtual prototyping based multi-physics modeling and analysis method is described in the work of Bing and Ye [21]. In that work, the authors proposed a framework of virtual prototyping environment for the design and analysis of reheat-stop-valve mechanism with revolute clearance joints in working situation.…”

“…In order to reveal the effect of high temperature steam thermal behavior effect on the revolute clearance joint, the thermo-structural coupled analysis [21] of the revolute clearance joints with related components is also used.…”

Integrating design and construction through virtual prototyping

“…Virtual prototyping (VP) is a computer-aided representational process concerned with the construction of digital product models ('virtual prototypes') and realistic graphical simulations that address the broad issues of physical layout, operational concept, functional specifications, and dynamics analysis under various operating environments [1][2][3]. Dedicated VP technology has been extensively and successfully applied to the automobile and aerospace fields [4,14,15]. However, the development and application of VP technology in the construction industry (i.e.…”