摘要
研究了筋受力激励下无限加筋板结构在运场的振动功率流分布特性，通过计算机仿真分析并完善了振动功率流分布解析表达式，使用振动功率流的双传感器互谱测量方法进行了实验验证，仿真与实验结果的一致性验证了振动功率流解析表达式及仿真结果的正确性。
Vibrational power now in an infinite stiffened - plate with force excitation applied on stiffener was studied by Goyder[1]. We used the formuta given by Goyder to perform numerical simulation and the results of such simulation are presented in Fig. 2. Fig. 2 shows many singularities, which we deem to be unacceptable. We derived eq. (7), which modifies Goyder's formula by including an additional term. We performed numerical simutation with eq. (7) and present the simulation results in Fig. 3. As expected, Goyder's singularities do not appear in Fig. 3.Further we performed experiments by using the dual - accelerometer cross spectrum technique. The good agreement between the test data and results computed with eq. (7)shows that eq. (7) is correct.
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
1998年第2期237-240,共4页
Journal of Northwestern Polytechnical University
基金
国家自然科学基金
国家重点实验室基金
关键词
加筋板结构
能量传输
振动功率流
vibrational power flow, stiffened-plate, numerical simulation
