lifting chain hoists. the strength of the theoretical strength of four kinds of failures in the form of the theory by two main categories : plastic yield ( or shear ) strength theory, including the maximum shear stress theory and distortion energy theory ; other is brittle fracture strength theory, including the maximum tensile stress theory and maximum elongation strain theory .
Because of the small frame used in the analysis of electric cable hoist, the application is distortion energy theory that the fourth strength theory , modal analysis below focuses on them to do a technique is used to determine the vibration characteristics of the structure air chain hoist, which can determine the structure of the natural frequencies chain block hoists, mode shapes correlation manual hoists coefficient. Because the vibration characteristics of the structure determines the structure of the response of the various power loads , thereby affecting the dynamic characteristics of the overall system manual block, it can be seen as dynamic analysis infrastructure design studies 2 ton chain hoist.
Modal analysis of manual hoist design allows electric cable hoist the structure to avoid resonance or make a particular frequency vibration, structural design engineers recognize the different types of dynamic loads is how to respond and help to solve the control lever blcoks parameter estimation in other dynamic analysis 2 ton chain hoist. The 14 modal analysis is another starting point for kinetic analysis , such as the transient dynamics electric cable hoist, harmonic analysis and spectral analysis manual hoists manufacturer. Conducted on the crane bridge vibration stability studies and structural optimization design work needs to be completed on the basis of the establishment of the modal analysis, so this small frame structure optimization design analysis must be carried out before the first modal analysis 2 ton chain hoist.
Lightweight technology under the current situation has entered a broad space for
hand lifting hoists development electric cable hoist, mainly modern lightweight technology limit state method, optimized design method, finite element method and modular design method .
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