1. Explosion-proof overhead traveling crane is a crane.

2. This paper introduces an optimization design method for overhead traveling crane structure with double bridge which is based on system analysis.

3. Control to load sway during operation of overhead traveling crane is a key problem and many studies have been done to solve the problem.

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4. The overhead traveling crane used at a cold strip mill factory is given to study the deformation, stress distribution and load capacity of the main girder with 3D-FEA Shell-to-Solid Submodel method.

5. The result indicates that the weight of the overhead traveling crane is decreased in the same condition after optimum design, and is more economical.

6. With the metal structure of overhead traveling crane as an object, this paper researched the theory and methods of parameterized design.

7. There exist problems such as material wasting in overhead traveling crane metal structure design and manufacture.

8. Main girder and other components of overhead traveling crane are typical welded structures, the primary failure type of which is fatigue crack.

9. In response to it, an overhead traveling crane box-girder optimal design software is developed and use of this software can solve the material wasting problem well.

10. Skew traveling of overhead traveling crane is a difficult problem. It causes the higher maintenance cost.

11. The design calculation method is practical in overhead traveling crane series product design.

12. In view of special headroom requirement and some problems in designing overhead traveling crane with slewing hoisting mechanism, it presents the overall scheme design and the mechanisms design.

13. The paper expounds a way to get stress amplitude spectrum of main girders of overhead traveling crane through computer simulation combining virtual prototype technology and computer random simulation.

14. This general-purpose software can design multiple types and multiple series overhead traveling crane.

15. Finally giving an example of the configuration model of the main girder of the overhead traveling crane, the main idea of the new model is illustrated.