Modular design can shorten the product development cycle and enhance the product research and development capability of enterprises. To better solve the problem of module interface coupling after module partition, the present modular product design method has been improved based on the theory of inventive problem solving and axiomatic design theory. This article summarizes the engineering parameters commonly used in modular design based on the requirement analysis and conflict problems of modular structure design. And in the process of dividing the functional modules by fuzzy clustering algorithm, we propose defining and classifying the principle (technical) correlation between parts by these parameters. Then the coupling relation of each module interface is analyzed by the design matrix of axiomatic design and the conflict solving tool of the theory of inventive problem solving is utilized for decoupling. Finally, the high chair is taken as the design object and the design process is used to verify the feasibility of this method.

Support taking through bracing or leaning while performing manual tasks is known to enhance the capability of the operator. However, simulation of this natural and biomechanically signicant behaviour in a DHM environment is either not possible or calls for signicant expertise and planning on the part of the simulation engineer. While manual simulation is time-consuming and error-prone, an algorithmic procedure is expected to enhance eciency and versatility in the simulation of diverse work environments and what-if scenarios. This paper presents a computational method for determining the location of and reaction at a support point on a given surface that is most advantageous for performing a task. The method also evaluates dierent possible support combinations and the associated optimal postures for performing a given task. The method is illustrated through one-handed reach and supported sitting tasks. Given the task and the environment, the simulation is performed without the need for any user intervention.