For iir , after researching pulse response method , step response method , bilinear transform method , direct design method , it is found that iir is unsatisfactory 對iir的脈沖響應不變法、階躍響應不變法、雙線性變換法和直接設計法進行研究,得出iir難以滿足要求的結論。
The bending stress and the contact stress of the circular arc gear and involute gear are also analyzed and compared . secondly , according to design and manufacture characteristic of the micro - gear , the direct design method called “ deviation function ” is proposed 第二,根據微型齒輪傳動設計與制造的特點,提出了一種設計微型齒輪輪齒齒廓曲線的方法,即偏差函數法設計齒輪齒廓。
Prestressed concrete slab - column structure has been widely used in long - span and multistory building . there are four commonly used analysis methods for slab - column structure , which are direct design method , equivalent frame method , plasticity method and finite element method 預應力混凝土板柱結構在大開間的多層及高層建筑中得到了廣泛的應用,其設計方法有直接設計法、等代框架法、塑性分析法和有限元法等多種方法。