The reliability of aerospace relay directly influences the reliability of thewhole system. The analysis and research on the optimum position of aerospace relay's pushing rodare an important process of aerospace re...The reliability of aerospace relay directly influences the reliability of thewhole system. The analysis and research on the optimum position of aerospace relay's pushing rodare an important process of aerospace relay reliability design. In the past, most researches weredone for electromagnetic systems and spring systems of aerospace relays. However, there was not anyresearch on the position of the pushing rod. An analytical method for the optimum position ofaerospace relay's pushing rod is presented in this paper. From four aspects, including theelectromagnetic force and torque, work done by the electromagnetic force and displacement, theoptimum position of a pushing rod is investigated based on the analysis of a straight spring system.The conclusions can be used to direct the optimum design and assembling of aerospace relays.展开更多
随着第三磨牙乃至第二磨牙阻生的情况增多，临床采用固定矫正器配合 NiTi 推簧，对6名患者出现的8颗水平或前倾阻生的下颌磨牙进行远中向、牙合向移动，引导其竖直并建立正确的咬合关系。最终前倾、水平阻生的下颌磨牙全部竖直，并与对...随着第三磨牙乃至第二磨牙阻生的情况增多，临床采用固定矫正器配合 NiTi 推簧，对6名患者出现的8颗水平或前倾阻生的下颌磨牙进行远中向、牙合向移动，引导其竖直并建立正确的咬合关系。最终前倾、水平阻生的下颌磨牙全部竖直，并与对牙合建立良好的牙合接触关系。阻生磨牙竖直治疗时间为5～8个月，平均时间6个月。通过对下颌近中、水平阻生第二、三磨牙的正畸治疗，证实了临床近中、水平阻生的下颌磨牙可以通过正畸治疗保留，并可获到良好的牙合接触关系。展开更多
文摘The reliability of aerospace relay directly influences the reliability of thewhole system. The analysis and research on the optimum position of aerospace relay's pushing rodare an important process of aerospace relay reliability design. In the past, most researches weredone for electromagnetic systems and spring systems of aerospace relays. However, there was not anyresearch on the position of the pushing rod. An analytical method for the optimum position ofaerospace relay's pushing rod is presented in this paper. From four aspects, including theelectromagnetic force and torque, work done by the electromagnetic force and displacement, theoptimum position of a pushing rod is investigated based on the analysis of a straight spring system.The conclusions can be used to direct the optimum design and assembling of aerospace relays.
文摘随着第三磨牙乃至第二磨牙阻生的情况增多，临床采用固定矫正器配合 NiTi 推簧，对6名患者出现的8颗水平或前倾阻生的下颌磨牙进行远中向、牙合向移动，引导其竖直并建立正确的咬合关系。最终前倾、水平阻生的下颌磨牙全部竖直，并与对牙合建立良好的牙合接触关系。阻生磨牙竖直治疗时间为5～8个月，平均时间6个月。通过对下颌近中、水平阻生第二、三磨牙的正畸治疗，证实了临床近中、水平阻生的下颌磨牙可以通过正畸治疗保留，并可获到良好的牙合接触关系。
