Abstract: An analytical solution to the dynamic transmission error of a helical gear pair is developed by using a single-degree-of-freedom model with piecewise stiffness functions that characterize the ...

Abstract: This paper proposes a new analytical model for helical gears that characterizes the contact plane dynamics and captures the velocity reversal at the pitch line due to sliding friction. First, ...

Abstract: Gear dynamic models with time-varying mesh stiffness, viscous mesh damping, and sliding friction forces and moments lead to complex periodic differential equations. For example, the multiplicative ...

Abstract: Sustainable development is one of the most widely studied contemporary issues in the transportation sector. However, few of the existing project-level, sustainability-oriented decision tools account for complex interdependencies ...

Abstract: Over the last decade, transportation asset management practices have been increasingly enhanced through incorporation of sustainability considerations. Organizational- and network-level guidelines have been developed to ...

Abstract: Public–private partnerships (PPPs) and sustainability have received considerable attention in delivery and execution of transportation infrastructure projects in the United States. Existing sustainability rating tools are ...

Abstract: This paper presents an extension of an energy-based method for analysis of statically indeterminate trusses under mechanical-thermal-assembly loadings. Using the Lagrange multiplier method, internal forces of statically ...

Abstract: This paper presents an experimental investigation of a miniature ejector using water as the working fluid. The investigated ejector cooling system can utilize the thermal energy to be removed to power the cooling system ...