نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دانشگاه مالک اشتر
2 دانشکده مکانیک، دانشگاه صنعتی مالک اشتر، لویزان، تهران، ایران
3 عضو هیأت علمی دانشگاه صنعتی مالک اشتر
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The space and weight limitation in air systems has always created the need to improve characteristics such as dimensions, weight, accuracy, and safety in the equipment used in these systems. This research uses the advantages of piezoelectric actuators, such as miniaturization, self-locking, non-magnetic, working in harsh conditions, high safety, etc., to propose, manufacture, and test their use as actuators in combustion gas transmission equipment. For this purpose, a traveling-wave rotary piezoelectric actuator was selected, and a gas valve was installed in it. In the numerical section, the actuator was analyzed by the finite element method, and frequency sensitivity analysis was performed. Then a prototype made in the optimal state. In the experimental section, the prototype parameters were evaluated and validated with the numerical results. In the results section, the efficiency of the piezoelectric actuator as a separate actuator was proven by measuring the output speed and torque. By comparing the geometrical parameters, it was shown that the combustion gas transmission equipment was able to reduce 28%, 57%, and 50% in diameter, volume, and weight, respectively. Finally, by conducting environmental tests, it was found that this equipment can prevent changes in the gas transfer valve status in harsh environmental conditions caused by vibrations and temperature changes and provide a high safety factor.
کلیدواژهها [English]
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