Mobile Bridge Segment Articulation for Static Definiteness
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Solution Overview
Problem
Mobile bridges of great length face constraints and undefined stresses due to temperature variations and support lowering movements, limiting their ability to travel in curves and change direction effectively, as they are statically indefinite and require precise synchronous operation of traveling mechanisms.
Innovation Solution
A mobile bridge system with articulated connections between segments in the vertical plane and supported by three different bearing mechanisms (A, B, C) carried by self-propelled traveling mechanisms, allowing for displaceability and pivoting movements, forming a statically definite system that can handle uneven surfaces and length changes, enabling travel in curves and 90° direction changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the bridge is constructed as a statically indefinite system with articulated connections in both vertical and horizontal planes, then the bridge can accommodate temperature variations and support lowering movements, but the bridge segments cannot maintain precise orientation relative to one another and the traveling mechanisms cannot operate synchronously
Solution Approach 1:
The bridge is divided into multiple bridge segments that are articulated only in the vertical plane, allowing each segment to independently accommodate support lowering movements while maintaining precise longitudinal orientation through the bearing mechanisms
Solution Approach 2:
The bearing mechanisms provide dynamic adjustment capabilities, allowing the bridge segments to adapt to temperature variations and support lowering movements while maintaining precise orientation through controlled pivoting movements about horizontal axes
2Manufacturing precision
If the traveling mechanisms are operated with high synchronous precision, then the bridge segments can maintain desired orientation, but the bridge cannot travel through curves effectively
Solution Approach 1:
The bearing mechanisms enable dynamic pivoting of bridge segments about horizontal axes, allowing the bridge to travel through curves by adjusting the orientation of individual segments while maintaining overall system coherence
Solution Approach 2:
The segmented bridge structure with articulated connections allows different bridge segments to follow different paths when traveling through curves, with each segment independently adjusting its orientation through the bearing mechanisms
3Stability of the object's composition
If the bridge is supported by rigid bearing mechanisms, then the bridge structure is stable, but the bridge cannot accommodate support lowering movements and temperature variations
Solution Approach 1:
The bearing mechanisms incorporate pivoting capabilities about horizontal axes, providing dynamic adaptation to support lowering movements and temperature variations while maintaining structural stability through controlled mechanical adjustments
Solution Approach 2:
The bearing mechanisms allow changes in the spatial parameters of bridge segments through pivoting movements, enabling the bridge to accommodate support lowering movements and temperature variations while maintaining overall structural integrity
Data Source
AI summary
A mobile bridge of great length is a support construction for at least one transport, which particularly avoids constraints and undefined stresses as a result of temperature variations and/or support lowering movements, for example, to the greatest possible extent. This will guarantee a statically definite system, is essentially accomplished in that the bridge, in its totality, forms a multi-member statically definite system in the vertical plane, and a statically definite continuous carrier in the horizontal plane. The bridge segments of the bridge are connected with one another, in articulated manner, exclusively in the vertical plane, and the bridge is supported by at least three bearing mechanisms of a type A, B, and C having different static valence. Each bearing mechanism of the type A, B, C is carried by a self-propelled, tip-proof traveling mechanism.