English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Firstly, a brief introduction of the relevant theory of spectral density is made. Then the stochastic road irregularities are established based on the above theory. Finally, the random vibration analysis is made based on the results of pre-stressed modal analysis in Ansys/workbench. Background and Significance of the Study The traction lift transport platform (hereinafter “transport platform”) is specially designed for loading, unloading and transshipment of large equipment and large instrument .In this way, the abrasion of related equipment can be effectively reduced in the long distance transport process. And the life of the equipment can be improved accordingly. Also, the transport platform can be used as a stable working platform for certain instruments or equipment (such as optical tracking equipment and radar). Instruments or equipment can finish the job on the transport platform. The frame is one of the important structures of the transport platform, and the proportion of the mass is the highest. The platform components are installed on the frame. As the part of load carrying, the performance of the system is affected by the frame. The pavement roughness is uncertain in the process of transporting. The pavement random excitation is made to the transport platform accordingly [1]. Then the vertical (the X direction) random displacement is shown on the transport platform. If the above random excitation is too strong, the fatigue damage of the structure will be caused. The transport platform must have a high level of reliability, which is determined by the nature of the transport platform. Therefore, the random vibration analysis for the frame is of great significance. Introduction to the Theory As a kind of qualitative analysis, random vibration analysis can also be called power spectral density analysis (PSD) [1].By the random vibration analysis, the values of physical parameters (such as the probability distribution of displacement or stress )will be solved under the action of random excitation to the structure. Nowadays the random vibration analysis of has been widely used on the design for airborne electronic equipment, acoustic loading components and optical alignment equipment. Power spectral density is the probability statistics for the response of the structure under random dynamic load. The displacement power spectral density, the speed power spectral density, the acceleration power spectral density, the strength power spectral density is included in the power spectral density. In mathematics, the value of the area bounded by the power spectral density value frequency curve is equal to the variance [3]. Mode shape and natural frequency of each order is be solved by the modal analysis. Then the finite element random vibration analysis can calculate the response of structure under random excitation according to the displacement spectrum. Random Vibration Analysis 471 5th International Conference on Frontiers of Manufacturing Science and Measuring Technology (FMSMT 2017) Advances in Engineering Research (AER), volume 130

The Random Vibration Analysis for the Frame of Traction Lift Transport Platform Based on Ansys