M/s Sri Damodaram Sanjeevaiah Thermal Power Station engaged NV Dynamics to conduct a vibration assessment of RCC floor slab in the water intake area of the Cooling Water Pump House. The pump house contains eight large pumps, each drawing water from individual sumps located beneath the structure. Higher vibration levels were reported in a RCC floor slab section corresponding to one of the pumps. Accordingly, the assessment was concentrated on the slab areas aligned with the pumps where higher vibration levels was observed.
KNR Construction Limited engaged NV Dynamics to conduct a ground-borne vibration assessment for the Bengaluru–Mangaluru National Highway (NH-75) construction project in the vicinity of Bantwala town, Karnataka. The primary objective of the assessment was to quantify vibration severity levels generated by the blasting operations and to evaluate their potential impact on the structural quality and integrity of nearby residential buildings. The assessment was conducted in 2 blasting sites which comprised of 5 vibration monitoring locations. All vibration monitoring locations were positioned at an approximate distance of 75 meters from the respective blasting sites, ensuring consistency and comparability of the recorded data.
NV Dynamics was engaged by M/s. ON Semiconductor Technology India Pvt. Ltd. to undertake a comprehensive floor vibration assessment at their laboratory in Bengaluru. The laboratory houses multiple high-precision and vibration-sensitive equipment distributed across the floor area. As per the recommendations of the structural consultant, specially designed steel plates of 10 mm thickness have been installed across the laboratory floor by the client to ensure uniform distribution of equipment loads over the structural slab. The assessment was carried out to evaluate the vibration response and dynamic behaviour of these steel plates, particularly under operational conditions of the sensitive equipment.
Modal analysis is a vital technique in structural dynamics used to identify a structure’s natural frequencies, mode shapes, and damping characteristics, thereby providing insights into its dynamic behavior under different loading conditions. Medha SMH Rail, after developing new monorail vehicles for the Mumbai Monorail, aimed to study the modal responses of the structural beam during operation. A Finite Element Model (FEM) of the beam had already been developed, and experimental modal analysis was undertaken by NV Dynamics to correlate the FEM results.
Larsen & Toubro Limited (Construction) engaged NV Dynamics to conduct detailed noise and vibration assessments for the proposed Mumbai Metro Line-4, extending approximately 19.48 km between Bhakti Park Metro Buffer End and Mulund Fire Station, with 17 elevated stations on a standard gauge double-track alignment.
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