The traditional wind tunnel strain balance design cycle is a manual iterative process. With the experience and intuition of the designer, one solution that meets the design requirements can be selected among a small number of design solutions. This paper introduces a novel software integration-based automatic balance design optimization system (ABDOS) and its implementation by integrating professional design knowledge and experience, stepwise optimization strategy, CAD-CAE software, self-developed scripts and tools. The proposed two-step optimization strategy includes the analytical design process (ADP) and the finite element method design process (FEDP). The built-in optimization algorithm drives the design variables change and searches for the optimal structure combination meeting the design objectives. The client-server based network architecture enables local lightweight design input, task management, and result output. The highperformance server combines all design resources to perform all the solution calculations. The development of more than 10 balances that have been completed and a case study show that this method and platform significantly reduce the time for design evaluation and designanalysis-redesign cycles, assisting designers to comprehensively evaluate and improve the performance of the balance.

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Strain gauge balances are basic equipment for wind tunnel tests. With the continuous and rapid development of material, design and processing technologies, temperature effects have become one of the main factors affecting the test ability and reliability of wind tunnel strain gauge balances [1] . Facing the developing technical requirements of wind tunnel tests, CARDC has carried out the research on strain gauge matching compensation technology around the temperature effect correction for a wind tunnel strain gauge balance, and has achieved preliminary successful application. Based on the temperature performance test of strain gauge and temperature optimization, this technology realizes the temperature effect compensation control of a wind tunnel strain gauge balance. It has the characteristics of high compensation accuracy and good overall reliability. The research is of positive significance to improve the development technical level of domestic wind tunnel balances.

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