تعتبر شركة Olux شركة رائدة ومتميزة على المستوى الدولي في مجال البحث والتطوير وتصنيع وبيع محطات التكسير والغربلة واسعة النطاق ومعدات الطحن الصناعية ومصانع الاستفادة.
Synchronous control of multiple shaking tables is challenging because of coupling between different shaking tables and complex dynamics of the testing systems. This article presents an adaptive waveform control for a two-degree-of-freedom dual electrohydraulic shaking tables testing system to improve the acceleration tracking performance.
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The practical results show that the adaptive inverse control algorithm has good effects for the control of the shaking tables, and can achieve high-precision replications of reference waveforms such as PSD or time domain waveforms. An adaptive inverse control (AIC) strategy is proposed in order to improve the control precision and reliability of shaking tables, and to eliminate the …
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1. Introduction. Servohydraulic shaking tables are used to simulate earthquake-induced ground motion for the seismic testing of large structures. Such testing is a vital part of the development of earthquake resilient buildings and infrastructure (e.g. bridges and dams), and thus plays a part in safeguarding many thousands of lives.
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shaking table test research. Keefer (1984) and Shimizu et al (1986) carried out shaking table tests to refine the crite-ria for the dynamic stability of slopes. After the Wenchuan earthquake in 2008, China paid more attention to shaking table tests: Dong et al. ( 2011), Yang et al. ( 2012a), and Yang et al. (2012b) used the shaking table test ...
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shaking table test of the 1/3-scale 18-story steel high-rise building executed in December 2013 at E-Defense [6]. Artificial generated earthquake motions were used as input for the large shaking table test, and the amplitude levels of the input motions were repeatedly increased until the model specimen collapsed. We installed 25
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E-Beetle is a high performance shaking table that can replicate the ground motion of earthquakes around the world that were observed in the past. It is capable of shaking a specimen at 2.7 G (horizontally), the largest acceleration observed …
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In this study, a shaking table test of a high-rise building, which considers the wave passage effect and slope amplification effect, fills the gap in the research field regarding the seismic ...
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Each TMD was placed on one uniaxial shaking table. The test results matched well with the shaking table test of the entire structure. Following the unified substructure scheme proposed by Reinhorn (Reinhorn et al., 2005) and the hardware framework by Shao (Shao and Reinhorn, 2012), multiple experimental substructures can be tested in one STST ...
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T1 - The feedforward minimal control synthesis algorithm and its application to the control of shaking-tables. AU - Stoten, DP. AU - Shimizu, N. N1 - Publisher: Professional Engineering Publishing. ... (TVC) strategy, a conventional algorithm that is widely used within shaking-table test facilities, together with the development and stability ...
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The applications of various control algorithms and their advantages and disadvantages are summarized and can be used as a reference for research on control technology of shaking tables at home and abroad. Shaking table is one of the important equipments for seismic research. It can accurately reproduce the seismic wave in the laboratory to accurately study the structural …
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Ohsaki Research Institute, Shimizu Corporation, 2–2–2, Uchisaiwai-cho, Chiyoda-ku, Tokyo, 100, Japan. Search for more papers by this author. Akira Ohtsuki, ... Besides, the effective stress method is verified by comparing its numerical results with results of a shaking table test. It is found that the present method can simulate well the ...
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A shaking table test for a reinforced concrete (RC) 6-story wall-frame building (Figure 3), which was conducted at E-Defense in January 2006, is a good example of the use of the input compensation method. 4 The specimen was an apartment building designed using the Japanese design code adopted in the 1970s. Its size was 17 × 12 × 16 m (length ...
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Hidemaru SHIMIZU's 26 research works with 83 citations and 957 reads, including: Shaking table test of semi-rigid timber frame structure with oil damper
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Shaking table testing is a common experimental method in earthquake engineering for performance assessment of structures subjected to dynamic excitations. ... The feedforward minimal control synthesis algorithm and its application to the control of shaking-tables. D. Stoten N. Shimizu. Engineering. 2007; Abstract Since the early 1990s, research ...
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Shaking table testing is a common experimental method in earthquake engineering for performance assessment of structures subjected to dynamic excitations. ... The feedforward minimal control synthesis algorithm and its application to the control of shaking-tables. D. Stoten N. Shimizu. Engineering. 2007; Abstract Since the early 1990s, ...
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In this paper, dynamic interaction behaviors of the shaking table with a bi-linear test model is firstly studied and reducing the interaction effect from the motion of the shaking table …
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Ring expansion testing has been compared to conventional tensile testing as a means to evaluate the circumferential yield strength of pipe products. ... Experimental Study on Shaking Table Control Using Adaptive Control. Nobuyuki Shimizu. ... E X P E R IM E N T A L Table 1 lists all the pipes that were studied in this experiment. For each of ...
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Typical shaking table test, array system tests, and experimental simulation materials were induced and contrasted. Internal existing shaking table and array system test's structural type ...
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In this study, firstly, we studied dynamic interaction behaviors of the shaking table with a bi-linear test model. Secondly, to reduce the interaction from the motion of the shaking …
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Abstract Since the early 1990s, research in Europe, the Far East, and America on the control of shaking-tables for seismic investigations has been made all the more urgent, following a series of catastrophic earthquakes across the globe. The fidelity of the results from shaking-table tests, on which many designs of earthquake-proof systems depend, is largely …
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Shaking Table Testing 2 (2) Shaking Table Test The shaking table test is realistic and clear when the response of a structure during an earthquake is discussed. A specimen is set up on the table which can be driven by actuators as shown in Fig. 1. Test specimens are usually manufactured for the shaking table test; therefore
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AbstractSince the early 1990s, research in Europe, the Far East, and America on the control of shaking-tables for seismic investigations has been made all the more urgent, following a series of ...
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Model testing using shake tables – current practice. Amarnath Kasalanati, Amarnath Kasalanati. Search for more papers by this author. Amarnath Kasalanati, ... The use of shake tables has grown considerably over the last few decades to study both the possible impact of earthquakes on new constructions such as dams, buildings and bridges, and ...
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The shaking table is an essential testing tool in the development of earthquake resistant buildings and infrastructure, so improving its performance is an important contribution to saving lives. Currently the bandwidth and accuracy of shaking tables is such that earthquake motion often cannot be replicated with the desired fidelity. A new model-based motion control method is …
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The full-scale earthquake testing facility (large-scale shaking table), which is now being constructed by the Japanese government, requires stable and precise control for conducting satisfactory ...
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Shake Table Test of Full-Size Wooden Houses versus Wall Test … Shake Table Test of Full-Size Wooden Houses versus Wall Test Result: Comparison of Load-Deformation Relationship. ... Hayashi, T., H. Shimizu, Y. Fukuda, H. Isoda, T. Mori, and K. . 2008. "An experimental study on full scale shaking table test of conventional wood house by E-defence."
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Shake Table Test of Full-Size Wooden Houses versus Wall Test Result: Comparison of Load-Deformation Relationship. ... Hayashi, T., H. Shimizu, Y. Fukuda, H. Isoda, T. Mori, and K. . 2008. "An experimental study on full scale shaking table test of conventional wood house by E-defence." In Proc., Annual Conf. of the Architectural ...
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Centrifuge shaking table can solve the problem of missing self-weight stress in 1g shaking table test, and also achieve excellent test results in the previous research work (Xu et al., 2020, Xu et al., 2021, Zhang et al., 2021). In this paper, the seismic response of underground structures in all-clay site, liquefiable interlayer site, and ...
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This paper discusses a new adaptive control algorithm, called the feedforward minimal control synthesis (FFMCS) algorithm, which offers improved shaking-table control, when used in …
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Shimizu, 2007), iterative control techniques (Spencer & Yang, ... (TVC) strategy, a conventional algorithm that is widely used within shaking-table test facilities, together with the development ...
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@article{osti_100884, title = {Experimental study on seismic responses of piping systems with friction. Part 1: Large-scale shaking table vibration test}, author = {Suzuki, K and Watanabe, T and Mitsumori, T and Shimizu, N and Kobayashi, H and Ogawa, N}, abstractNote = {This report deals with the experimental study of seismic response behavior of piping systems in industrial …
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Typically, a shaking table test system is composed of one or multiple servo-hydraulic actuators, a hydraulic power supply, a rigid table, and a control system. ... TVC controller is to use displacement, velocity and acceleration compensation techniques to improve the dynamics of the shaking table system (Stoten and Shimizu, 2007; Xu et al ...
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On the basis of extensive testing series comprising monotonic and reversed cyclic tests on X-lam panels, a pseudodynamic test on a one-storey X-lam specimen and 1D shaking table tests on a full-scale three-storey specimen, a full-scale seven-storey building was designed according to the European seismic standard Eurocode 8 and subjected to ...
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Author keywords: Shake table testing; Seismic tests; Earthquake; Woodframe; Light-frame wood; Midrise building. Introduction Light-frame wood buildings represent most of the building stock
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In this study, firstly, we studied dynamic interaction behaviors of the shaking table with a bi-linear test model. Secondly, to reduce the interaction from the motion of the shaking table, the …
WhatsApp: +86 18221755073
The full-scale earthquake testing facility (large-scale shaking table), which is now being constructed by the Japanese government, requires stable and precise control for conducting …
WhatsApp: +86 18221755073