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To achieve the dimensional synthesis of planar four-bar linkages, it established the numerical atlases of coupler rotation-angle operator harmonic characteristic parameters and coupler rotation-angle function's harmonic components firstly. It achieved the basic dimension type of linkages and the mathematical model of coupler path based on complex-vector theory secondly, then acquired the formula of...
The acoustic signal of a mechanical watch movement consists of many modal frequencies of its escapement. However, the traditional methods neglected such valuable information which is in frequency domain. This paper presents a method for the signature analysis of mechanical watch movements by combining reassigned scalogram with finite element analysis (FEA). First, reassigned scalogram is applied to...
Based on the single-opened-chain (SOC) unit theory, a new parallel mechanism with two translational and one rotational (2T1R) degrees of freedom is put forward. Both the forward and the inverse analytical solutions of the moving platform's positions are derived. The virtual prototype model of the mechanism is established by use of the ADAMS software. According to the simulation of the virtual prototype,...
This paper presents a new Web-based optimization method for path generation synthesis of planar four-bar linkage. The technical features of this method are analyzed and a Web-based design mode is confirmed, which is based on browser/server framework and combines the characteristics of optimization theory and of Web techniques. In the web design environment, it can accomplish remote design between...
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