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- The frequency constraint and other constraints are separately treated with the combined penalty function strategy in order to satisfy all constraint conditions and improve the convergence rate of PSO. 采用混合罚函数法分开处理结构固有频率约束和其他约束条件，既保证所有约束能够严格满足，又提高了微粒群算法的收敛速度。
- Abstract The stiffness of a griddle body was enhanced using dynamic topological optimization under multiple frequencies constraints. 应用多频率约束下板结构加筋动态拓扑优化方法，提高了振动筛筛体的刚度。
- The stiffness of a griddle body was enhanced using dynamic topological optimization under multiple frequencies constraints. 应用多频率约束下板结构加筋动态拓扑优化方法,提高了振动筛筛体的刚度。
- Optimal design of a scroll case with natural frequency constraints 具有频率约束条件的蜗壳优化设计
- AN OPTIMAL DYNAMIC DESIGN OF AEROENGINE ROTORS WITH FREQUENCY CONSTRAINTS 带频率禁区的发动机转子动力优化设计
- multiple frequencies constraints 多频率约束
- He varied the transmission frequency. 他变换了无线电传送的频率。
- Topological optimization of continuum structure with static displacement and frequency constraints by ICM method 用ICM法拓扑优化静位移及频率约束下连续体结构
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Linear Matrix Inequalities Approach to Structural Optimization Design With Fundamental Frequency Constraints 基频约束结构优化设计的线性矩阵不等式方法
- Study of Optimal Section Design of Hollow Gravity Dams under Static and Minimal Frequency Constraints 在静力和最小频率约束下空腹重力坝断面优化设计的研究
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- An Investigation on Solution Existence and Evaluation of the Optimization Problem of Truss Structures with Frequency Constraints 桁架频率优化解存在性及其算法研究
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- Optimal Design of Composite Laminates Subject to Natural Frequency Constraint Using an Improved Genetic Algorithm 基于改进遗传算法的复合材料层合板自振频率优化设计
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- The pitch depends on the frequency. 音调的高低是由频率决定的。
- The resulting frequency varies by a few percent. 最终频率有少许变动。
